Under Sequence number compressed (in Just Math) Posted on 20201028 (7 Comments) 
 re: computer solution by Jer (20201028 11:17:25) 
Under Metagame: Set and Match (in Probability) Posted on 20201027 (5 Comments) 
 Implementing by Desmos by Jer (20201027 12:59:09) 
 Implementing by TI calculator by Jer (20201027 12:51:08) 
Under ChuckALuck (in Probability) Posted on 20201022 (3 Comments) 
 Alternate tabulation for solution by Jer (20201022 12:54:47) 
Under The King Shows Some Mercy (in Probability) Posted on 20201019 (4 Comments) 
 re(2): If I understand the problem by Jer (20201020 08:12:43) 
 If I understand the problem by Jer (20201019 10:53:00) 
Under Triangle bisector (in Geometry) Posted on 20201018 (1 Comments) 
 Solution with assumptions by Jer (20201020 08:10:51) 
Under Valid system of equations (in Just Math) Posted on 20201016 (1 Comments) 
 Solution by Jer (20201016 08:25:17) 
Under Product of 3 boxes (in Numbers) Posted on 20201014 (1 Comments) 
 Solution by Jer (20201014 08:54:30) 
Under Goldin pyramid (in Shapes) Posted on 20201006 (6 Comments) 
 Simpler solutions exist by Jer (20201009 21:56:27) 
Under Dissecting into rectangles (in Numbers) Posted on 20200930 (5 Comments) 
 Solution part 1 by Jer (20201002 13:06:39) 
Under An Iterated Floor Equation (in Numbers) Posted on 20200915 (4 Comments) 
 Solution by Jer (20200915 12:47:42) 
Under Close neighbor (in General) Posted on 20200914 (7 Comments) 
 re: Might be this by Jer (20200914 08:34:21) 
Under Square to Cone Conversion (in Shapes) Posted on 20200912 (1 Comments) 
 Solution to part a) & progress so far on b) by Jer (20200912 21:57:12) 
Under Equilateral hexagon (in Geometry) Posted on 20200908 (5 Comments) 
 re: where I stopped by Jer (20200912 12:34:50) 
 re: Some thoughts by Jer (20200912 12:27:43) 
Under S.S. Minnow SOS (in Probability) Posted on 20200902 (6 Comments) 
 re: Possibly solution by Jer (20200902 09:46:00) 
 Possibly solution by Jer (20200902 09:38:59) 
Under Extreme revolving cuboid (in Shapes) Posted on 20200828 (4 Comments) 
 Hint? by Jer (20200828 16:14:08) 
Under Two Pill Bottles (in Probability) Posted on 20200819 (5 Comments) 
 Solution Google Sheets by Jer (20200819 14:22:11) 
 re: Solution  Excel by Jer (20200819 13:53:07) 
Under Great Divide (in Just Math) Posted on 20200615 (3 Comments) 
 One way to see the solution by Jer (20200615 12:13:17) 
Under Eight of them (in Numbers) Posted on 20200603 (3 Comments) 
 Analytic solution by Jer (20200604 12:56:02) 
Under Two Towers Hanoi (in Algorithms) Posted on 20200527 (4 Comments) 
 re(2): Most of solution by Jer (20200530 15:47:34) 
 Most of solution by Jer (20200527 13:45:20) 
Under More functions to limit (in Just Math) Posted on 20200518 (4 Comments) 
 Observations by Jer (20200518 10:39:36) 
Under Division by e (in Just Math) Posted on 20200325 (9 Comments) 
 Surprising consequence by Jer (20200329 19:10:39) 
 re: Guess not proof by Jer (20200327 11:38:49) 
Under Tan2Mid (in Geometry) Posted on 20200311 (1 Comments) 
 Solution by Jer (20200314 22:48:23) 
Under 3 equilateral triangles in a rectangle (in Geometry) Posted on 20200228 (2 Comments) 
 re: My attempt by Jer (20200314 17:39:47) 
Under Reflection Triangle (in Shapes) Posted on 20200124 (5 Comments) 
 re(4): What am I missing? > The Kosnita Point by Jer (20200127 17:14:05) 
Under Find the Holes (in Logic) Posted on 20200115 (2 Comments) 
 Child's play  solution by Jer (20200119 17:13:34) 
Under PYHIYP #2 (in Just Math) Posted on 20200113 (6 Comments) 
 my solution by Jer (20200117 22:12:03) 
Under Two players, three pots (in Games) Posted on 20200103 (4 Comments) 
 re: Many pots by Jer (20200106 15:09:28) 
Under Phrase and misconception (in Cryptography) Posted on 20200101 (3 Comments) 
 re: How we ID'ed that quote so easily? by Jer (20200102 17:14:10) 
Under PYHIYP #1 (in Numbers) Posted on 20191209 (4 Comments) 
 Spoiler for iii. by Jer (20191210 09:27:13) 
Under SOD cubed equals Sum of Squares of SODs (in Numbers) Posted on 20191120 (3 Comments) 
 solution? by Jer (20191120 13:12:58) 
Under Fancy quadrilateral (in Just Math) Posted on 20191025 (4 Comments) 
 re(2): the right starting point?  kite solution by Jer (20191026 13:49:50) 
Under Interval Guessing (in General) Posted on 20191021 (10 Comments) 
 A note by Jer (20191026 13:59:23) 
Under The Midpoint Locus (in General) Posted on 20191011 (3 Comments) 
 Solution by Jer (20191016 12:39:46) 
Under Reduced to single digit (in Numbers) Posted on 20190906 (14 Comments) 
 Another line of attack by Jer (20190910 11:20:41) 
 Thoughts by Jer (20190910 11:13:47) 
Under Don't assume you know this concave pentagon (in Geometry) Posted on 20190901 (7 Comments) 
 Two solutions by Jer (20190903 08:15:00) 
Under 5 circles in a square part 1 (in Geometry) Posted on 20190828 (5 Comments) 
 re: q. and possible soln  corrections and clarifications by Jer (20190828 21:17:17) 
Under The Five Touching Spheres (in Shapes) Posted on 20190825 (13 Comments) 
 Solution (I'd like confirmation) by Jer (20190826 19:11:58) 
Under Talwalker trouble (in Geometry) Posted on 20190824 (3 Comments) 
 One way by Jer (20190824 15:23:06) 
Under A Triangle in a Square (in Geometry) Posted on 20190821 (6 Comments) 
 general solution by Jer (20190821 20:30:18) 
Under Irrational Distance/Rational Areas (in Just Math) Posted on 20190819 (4 Comments) 
 weak solution by Jer (20190819 16:26:52) 
Under Peoples Day (in Just Math) Posted on 20190812 (3 Comments) 
 Solution by Jer (20190812 13:36:04) 
Under Listing the cardinal numbersâ€™ names (in Word Problems) Posted on 20190730 (2 Comments) 
 Maybe by Jer (20190730 08:52:04) 
Under Tangent by Transformation (in Just Math) Posted on 20190725 (2 Comments) 
 Solution by Jer (20190725 09:16:35) 
Under Tic tac toe variation (in Logic) Posted on 20190722 (1 Comments) 
 Not D1 solution by Jer (20190723 11:09:32) 
Under Describe the decimal (in Numbers) Posted on 20190712 (3 Comments) 
 Fuller solution by Jer (20190712 14:51:26) 
Under A's, B's, C's and D's 2 (in Logic) Posted on 20190703 (6 Comments) 
 Spoiler by Jer (20190703 12:29:49) 
Under Quick factors II (in Numbers) Posted on 20190623 (1 Comments) 
 Quickly by Jer (20190623 20:02:56) 
Under Differentiated function (in Calculus) Posted on 20190622 (1 Comments) 
 Either solution or confused by Jer (20190625 09:17:38) 
Under Find the rainbow (in Probability) Posted on 20190613 (1 Comments) 
 Solution by Jer (20190613 10:37:46) 
Under The Real Product (in General) Posted on 20190611 (12 Comments) 
 My take by Jer (20190612 19:59:30) 
Under Divisors' sum = square (in Numbers) Posted on 20190527 (7 Comments) 
 Sequence by Jer (20190528 10:08:56) 
Under Crossword puzzles (in Algorithms) Posted on 20190521 (10 Comments) 
 re: My Attempt by Jer (20190602 10:28:50) 
 My Attempt by Jer (20190601 23:38:59) 
Under Carry on, Decimal (in Numbers) Posted on 20190520 (3 Comments) 
 Cool number by Jer (20190520 19:44:45) 
Under Three Orthogonal Chords (in Geometry) Posted on 20190510 (2 Comments) 
 Error in the problem? by Jer (20190513 15:54:02) 
Under Odd partition (in Numbers) Posted on 20190509 (2 Comments) 
 The Fibonacci connection by Jer (20190509 21:38:10) 
Under Cosmological Logic (in Logic) Posted on 20190507 (4 Comments) 
 re: This is always troubling.... by Jer (20190509 21:40:48) 
 Logic by Jer (20190508 09:56:49) 
Under A geometric gangster shooting (in Just Math) Posted on 20190506 (6 Comments) 
 re: A guess (spoiler?) by Jer (20190506 12:25:03) 
Under 9ending numbers (in Numbers) Posted on 20190429 (1 Comments) 
 solution by Jer (20190429 13:32:56) 
Under Seven positive numbers (in Numbers) Posted on 20190422 (1 Comments) 
 Solution? by Jer (20190423 16:00:59) 
Under Simple Adding (in Numbers) Posted on 20190418 (1 Comments) 
 Two Solutions by Jer (20190418 09:38:52) 
Under Looks like Cauchy (in Just Math) Posted on 20190417 (3 Comments) 
 Better solution by Jer (20190419 10:33:24) 
 Weak solution by Jer (20190418 11:07:17) 
Under Breaking the Jewel code (in Numbers) Posted on 20190417 (4 Comments) 
 re: some thoughts by Jer (20190417 14:55:02) 
Under Does the hexagon exist? (in Geometry) Posted on 20190411 (1 Comments) 
 Solution by Jer (20190411 15:43:08) 
Under Based on threes! (in Numbers) Posted on 20190409 (3 Comments) 
 re: solution with computation by program, with a oneparagraph analytic method by Jer (20190410 14:13:21) 
 Counting solution. by Jer (20190409 16:00:16) 
Under Mobile screen under Sunlight (in Science) Posted on 20190405 (4 Comments) 
 My idea by Jer (20190405 11:52:14) 
Under Hot and Cold Cubes (in Science) Posted on 20190404 (6 Comments) 
 A trick solution? by Jer (20190405 11:49:27) 
 re(3): Missing info? Or solution? Example by Jer (20190405 11:34:08) 
Under Sine in Exponent (in Just Math) Posted on 20190403 (13 Comments) 
 re(2): 2 possible solutions by Jer (20190403 14:37:45) 
 2 possible solutions by Jer (20190403 11:50:26) 
Under Hexagon Angles Needed (in Shapes) Posted on 20190402 (2 Comments) 
 Solution? by Jer (20190403 09:57:08) 
Under A Divisor Diversion (in Numbers) Posted on 20190327 (4 Comments) 
 No Subject by Jer (20190327 14:56:21) 
Under Locate the inflection point (in Just Math) Posted on 20190326 (1 Comments) 
 solution by Jer (20190326 15:59:24) 
Under Mean=Median=Mode (in Just Math) Posted on 20190323 (1 Comments) 
 Solution by Jer (20190323 13:24:36) 
Under Too many to work with (in Geometry) Posted on 20190321 (2 Comments) 
 re: GSP solution by Jer (20190322 22:35:49) 
 GSP solution by Jer (20190322 14:22:29) 
Under Factor it (in Numbers) Posted on 20190319 (3 Comments) 
 re(2): Solution .... hmmm by Jer (20190319 22:38:19) 
 Solution by Jer (20190319 10:06:22) 
Under Is this circular billiards? (in Geometry) Posted on 20190318 (4 Comments) 
 re: Geometer's Sketchpad approximation by Jer (20190318 18:29:58) 
Under Rectangle on a cubic (in Just Math) Posted on 20190307 (1 Comments) 
 Most of solution by Jer (20190307 15:57:25) 
Under What's the calculator doing? (in General) Posted on 20190306 (4 Comments) 
 Another grapher same issue. by Jer (20190307 15:28:30) 
Under Can rationalization help? (in Geometry) Posted on 20190305 (1 Comments) 
 Solution by Jer (20190305 09:49:34) 
Under And counting (in Numbers) Posted on 20190228 (4 Comments) 
 If we're sharing nonanalytical solutions by Jer (20190301 07:47:40) 
Under L & R (in Word Problems) Posted on 20190226 (1 Comments) 
 Got it! by Jer (20190226 15:19:57) 
Under No Heron (in Just Math) Posted on 20190222 (1 Comments) 
 Solution by Jer (20190222 08:57:44) 
Under Unlikely event (in Numbers) Posted on 20190221 (3 Comments) 
 Calculator solution by Jer (20190221 14:38:02) 
Under Limited reflections (in General) Posted on 20190219 (7 Comments) 
 There are easy ways by Jer (20190220 15:29:21) 
Under Bifonacci (in Numbers) Posted on 20190219 (2 Comments) 
 Solution by Jer (20190219 09:38:28) 
Under Chacun Ă son goĂ»t ! (in Just Math) Posted on 20190218 (3 Comments) 
 re: computer solutions, with an extension of the bonus by Jer (20190219 09:50:58) 
Under Trees, Teas, and Peas (in Word Problems) Posted on 20190218 (1 Comments) 
 Solution by Jer (20190218 11:27:10) 
Under I squeeze, squeeze, and squeeze (in Geometry) Posted on 20190215 (4 Comments) 
 Actual solution by Jer (20190217 13:20:08) 
 Possible solution by Jer (20190217 11:48:40) 
Under Recovering the number (in Numbers) Posted on 20190213 (2 Comments) 
 Solution by year. by Jer (20190213 12:48:24) 
Under The Cut Cube (in Shapes) Posted on 20190213 (4 Comments) 
 Simple solution by Jer (20190214 12:16:49) 
Under 600 sixes (in Numbers) Posted on 20190211 (2 Comments) 
 Quick Solution by Jer (20190211 15:07:48) 
Under Equal Circles (in Geometry) Posted on 20190208 (1 Comments) 
 Solution by Jer (20190211 15:34:08) 
Under Spheres on a floor (in Geometry) Posted on 20190207 (2 Comments) 
 Since this is D5... by Jer (20190207 21:30:14) 
Under Can you C it? (in Word Problems) Posted on 20190206 (21 Comments) 
 I think I can. by Jer (20190206 20:34:45) 
Under Consistency parameter (in Just Math) Posted on 20190130 (3 Comments) 
 about the problem by Jer (20190130 11:50:49) 
Under Smaller product (in Just Math) Posted on 20190129 (2 Comments) 
 Solution by Jer (20190129 08:53:08) 
Under Digit Hunting (in Just Math) Posted on 20190126 (4 Comments) 
 poor explanation by Jer (20190127 11:57:32) 
Under 16 choices (in Just Math) Posted on 20190121 (5 Comments) 
 re(4): Solution PLEASE RECONSIDER. by Jer (20190122 11:38:14) 
 re(2): Solution PLEASE RECONSIDER. by Jer (20190122 10:01:01) 
Under Extreme Rationalization (in Numbers) Posted on 20190119 (4 Comments) 
 re(3): Simply horrendous by Jer (20190121 12:18:18) 
 re: Simply horrendous by Jer (20190120 18:20:27) 
Under From ab to ba (in Logic) Posted on 20190117 (2 Comments) 
 Solution? by Jer (20190117 12:10:50) 
Under Grid nim: 2xN (in Games) Posted on 20190116 (4 Comments) 
 re: Spoiling moves, spoiler for 2x3 and 2x4 by Jer (20190117 11:58:25) 
Under Factorial Tremors (in Numbers) Posted on 20190116 (4 Comments) 
 An observation by Jer (20190116 22:45:17) 
Under Reach home (in Just Math) Posted on 20190114 (11 Comments) 
 re(2): But.... by Jer (20190116 13:43:17) 
 N=3 and conjectured formula by Jer (20190115 10:01:19) 
Under Two triangles in a square (in Geometry) Posted on 20190112 (2 Comments) 
 Context for the problem by Jer (20190112 12:29:17) 
Under Ten ways to pack a cube? (in Shapes) Posted on 20190111 (1 Comments) 
 Solution? by Jer (20190112 10:43:41) 
Under Sine recurrence (in Just Math) Posted on 20190108 (6 Comments) 
 Full solution by Jer (20190108 11:36:32) 
Under A Circle Between the Bell Curves (in Calculus) Posted on 20181223 (2 Comments) 
 Solution with more work. by Jer (20181223 16:30:02) 
 Lazy approximate solution by Jer (20181223 16:07:50) 
Under Copy and Construct (in Geometry) Posted on 20181220 (5 Comments) 
 re(2): Solution by Jer (20181220 21:53:45) 
 Solution by Jer (20181220 18:08:28) 
Under Colored triangle (in Sequences) Posted on 20181214 (10 Comments) 
 re: proposed solution by Jer (20181218 11:07:19) 
Under The 100th number (in Sequences) Posted on 20181210 (7 Comments) 
 Welcome to the club! by Jer (20190112 12:37:20) 
Under Rolling Ellipse (in Geometry) Posted on 20181207 (2 Comments) 
 Evidence by Jer (20181207 17:57:12) 
Under Heptagonal Beauty (in Geometry) Posted on 20181202 (1 Comments) 
 Solution by Jer (20181204 11:47:27) 
Under 5 circles in a hexagon. (in Geometry) Posted on 20181125 (9 Comments) 
 re(3): soln by Jer (20181130 18:23:58) 
 re: soln by Jer (20181129 15:44:58) 
 re(2): Picturing it..... by Jer (20181125 17:56:48) 
Under Sine of Squared (in Calculus) Posted on 20181115 (5 Comments) 
 Solution with WolframAlpha cheating by Jer (20181116 12:24:13) 
Under The Unit Square in the Circle (in Geometry) Posted on 20181110 (1 Comments) 
 Ill defined problem? by Jer (20181110 22:56:35) 
Under A 3digit number (in Numbers) Posted on 20181027 (13 Comments) 
 re: True Story by Jer (20181027 23:09:59) 
Under Box of balls (in Probability) Posted on 20181016 (6 Comments) 
 re(3): Half a solution (partial spoiler), finished by Jer (20181017 07:45:02) 
 re: Half a solution (partial spoiler), finished by Jer (20181016 09:37:44) 
Under Who pinched the dice? (in Probability) Posted on 20181004 (10 Comments) 
 Why this is difficult by Jer (20181004 14:30:06) 
Under Monty Hall variant (in Probability) Posted on 20180930 (6 Comments) 
 re: question by Jer (20180930 20:54:51) 
 re: strategy (spoiler) by Jer (20180930 17:56:28) 
Under A logical search (in Numbers) Posted on 20180924 (10 Comments) 
 Possible solution by Jer (20180924 11:42:11) 
Under Odd, but true (in Word Problems) Posted on 20180920 (4 Comments) 
 'Great' examples by Jer (20180920 21:08:34) 
Under One rope, two flagpoles... (in Logic) Posted on 20180918 (4 Comments) 
 Nice problem by Jer (20180918 10:19:15) 
Under A packing exercise (in Shapes) Posted on 20180914 (5 Comments) 
 re: kudos by Jer (20180917 20:05:46) 
 My source and a hint by Jer (20180914 09:16:41) 
Under Compare them (in Numbers) Posted on 20180908 (7 Comments) 
 re(2): proposed solution by Jer (20180908 17:24:45) 
 Graphical solution by Jer (20180908 17:06:13) 
Under Summing up factorials (in Numbers) Posted on 20180902 (1 Comments) 
 Solution by Jer (20180902 11:37:26) 
Under Complicated Tangency (in Geometry) Posted on 20180901 (2 Comments) 
 Solution in one line on a calculator by Jer (20180901 13:59:30) 
Under Ant highway with energy loss (in Calculus) Posted on 20180824 (9 Comments) 
 re: heuristic computer solution by Jer (20180824 22:47:49) 
Under What's next? (3) (in Sequences) Posted on 20180819 (3 Comments) 
 re: researched solution by Jer (20180819 16:55:04) 
Under Jeopardystyle A&Q (in Numbers) Posted on 20180812 (6 Comments) 
 Possible solution(s) by Jer (20180812 15:04:14) 
Under Shirtless ? Even nude! (in Numbers) Posted on 20180807 (3 Comments) 
 Attempts at b,c,d by Jer (20180807 09:39:01) 
Under Special feature (in Numbers) Posted on 20180729 (6 Comments) 
 Solution by Jer (20180729 11:13:33) 
Under Some prime sequences (in Numbers) Posted on 20180704 (11 Comments) 
 The sequence by Jer (20180705 10:10:05) 
Under Zero is the last digit of S (in Numbers) Posted on 20180616 (3 Comments) 
 re: Answer by Jer (20180617 17:10:27) 
Under Define number n in n letters (in General) Posted on 20180608 (4 Comments) 
 Some solutions and a link by Jer (20180608 18:39:48) 
Under Sort it out ! (in Just Math) Posted on 20180605 (1 Comments) 
 A solution by Jer (20180605 09:18:43) 
Under Thinking octal (in Numbers) Posted on 20180530 (2 Comments) 
 Solution by Jer (20180530 09:22:09) 
Under Selfnumbers and generators (in Numbers) Posted on 20180523 (8 Comments) 
 re(2): Thoughts on c. (assist req'd) ====>Hint by Jer (20180526 22:31:55) 
 Thoughts on c. (assist req'd) by Jer (20180525 22:03:03) 
 re: a. analytic, b. computer, solutions (spoilers for a and b) by Jer (20180523 15:12:01) 
 part a. with positive n by Jer (20180523 14:25:31) 
Under High and low (in Word Problems) Posted on 20180521 (3 Comments) 
 Simple integers by Jer (20180521 09:39:58) 
Under Where's the Center (in Geometry) Posted on 20180520 (2 Comments) 
 Solution by Jer (20180527 13:28:40) 
Under Will take some time ?? (in Numbers) Posted on 20180518 (5 Comments) 
 re(2): computer solution by Jer (20180519 23:26:57) 
Under From primes to palindromes (in Numbers) Posted on 20180516 (4 Comments) 
 OEIS crossreferencing by Jer (20180516 10:06:09) 
Under Equally Spaced (in Geometry) Posted on 20180513 (4 Comments) 
 re(2): Possible solution by Jer (20180521 14:04:57) 
 Possible solution by Jer (20180519 22:50:39) 
Under 2 capitals (in Word Problems) Posted on 20180511 (3 Comments) 
 No solutions but close by Jer (20180516 21:35:35) 
Under How about 138? (in Sequences) Posted on 20180510 (4 Comments) 
 re: computer solution by Jer (20180510 14:46:46) 
 Link to a spoiler by Jer (20180510 14:32:58) 
Under Unique definition (in Numbers) Posted on 20180507 (1 Comments) 
 2digit and beyond by Jer (20180507 09:54:32) 
Under Two random points (in Probability) Posted on 20180426 (10 Comments) 
 re(2): There must be a reason for the D3 rating. No. by Jer (20180426 14:44:33) 
 Solution by Jer (20180426 09:50:49) 
Under Prime stars (in Just Math) Posted on 20180413 (2 Comments) 
 solution by Jer (20180413 10:21:03) 
Under The royal sisters (in Just Math) Posted on 20180409 (3 Comments) 
 Analytic solution by Jer (20180410 09:49:36) 
Under Prime records (in Sequences) Posted on 20180406 (3 Comments) 
 The ?s, no spoiler by Jer (20180408 11:56:11) 
Under Squares built from leftovers (in Numbers) Posted on 20180405 (4 Comments) 
 re(2): Solution by cheating by Jer (20180405 14:56:11) 
 Solution by cheating by Jer (20180405 14:33:51) 
Under Create a magic square (in Numbers) Posted on 20180403 (2 Comments) 
 re: One way by Jer (20180404 09:02:50) 
Under Cube Decomposition (in Geometry) Posted on 20180402 (4 Comments) 
 re: solution with explanation by Jer (20180402 15:18:25) 
Under Comb(k,2) (in Numbers) Posted on 20180329 (4 Comments) 
 A few easy ones by Jer (20180329 09:29:35) 
Under Generating triplets of squares (in Just Math) Posted on 20180325 (5 Comments) 
 More thoughts, problems encountered by Jer (20180326 14:55:04) 
 re: a partial list of infinity by Jer (20180326 09:52:43) 
Under Boxed Parabolas (in Geometry) Posted on 20180324 (4 Comments) 
 Easy way by Jer (20180328 09:35:57) 
 Hard way by Jer (20180325 11:59:35) 
Under Radius missing (in Geometry) Posted on 20180307 (2 Comments) 
 Simple solution by Jer (20180307 09:09:39) 
Under The Truman Show (in Geometry) Posted on 20180302 (4 Comments) 
 About the problem by Jer (20180302 11:16:58) 
Under Square products (in Just Math) Posted on 20180227 (3 Comments) 
 re: computer exploration / thoughts by Jer (20180228 15:19:12) 
Under Strictly nonpalindromic numbers (in Numbers) Posted on 20180218 (3 Comments) 
 Task 4 by Jer (20180218 13:12:25) 
Under 15 letters (in Word Problems) Posted on 20180216 (7 Comments) 
 re: my solutions by Jer (20180216 10:12:04) 
 my solutions by Jer (20180216 10:06:51) 
Under Pickabook meeting (in Just Math) Posted on 20180212 (5 Comments) 
 Solution by Jer (20180212 09:20:12) 
Under Carpenter's pricing (in Just Math) Posted on 20180205 (5 Comments) 
 4 systems solution by Jer (20180205 10:09:15) 
Under Random log (in Probability) Posted on 20180204 (1 Comments) 
 Solution with generalization by Jer (20180204 13:19:07) 
Under Evaluate the missing digit (in Just Math) Posted on 20180129 (1 Comments) 
 Solution by Jer (20180129 09:48:02) 
Under Starting the Scrabble Game (in Probability) Posted on 20180124 (8 Comments) 
 3 people solution by Jer (20180125 22:16:50) 
 re(5): No Subject by Jer (20180125 15:09:40) 
 No Subject by Jer (20180124 14:47:34) 
Under Champagnat numbers (in Just Math) Posted on 20180123 (2 Comments) 
 re: a proof by Jer (20180123 16:01:25) 
Under Quite a coincidence (in Just Math) Posted on 20180119 (6 Comments) 
 Part A only by Jer (20180119 07:39:52) 
Under Fair slices (in Geometry) Posted on 20180116 (8 Comments) 
 responses to previous posts. by Jer (20180116 13:26:51) 
Under Get even (in Numbers) Posted on 20180115 (3 Comments) 
 Solution by Jer (20180115 07:42:21) 
Under Intersection of Perps (in Geometry) Posted on 20180114 (3 Comments) 
 Solution by Jer (20180115 15:10:09) 
Under Evaluating a distance (in Geometry) Posted on 20180113 (4 Comments) 
 re(2): Solution+ by Jer (20180114 12:17:06) 
 Solution+ by Jer (20180113 15:15:16) 
Under Funny way to divide by seven (in Numbers) Posted on 20180112 (3 Comments) 
 Analytic solution by Jer (20180113 15:32:38) 
Under Discounting one (in Numbers) Posted on 20180110 (9 Comments) 
 re: The only way to do it. Confused by Jer (20180110 15:03:53) 
Under Dividing the Land Evenly (in Geometry) Posted on 20180109 (2 Comments) 
 Idea for Part 4 by Jer (20180109 15:30:46) 
Under A meeting point (in Just Math) Posted on 20180107 (2 Comments) 
 Solution by Jer (20180107 12:29:31) 
Under Three questions plus one challenge (in Numbers) Posted on 20180104 (1 Comments) 
 Probably done by Jer (20180104 09:59:54) 
Under Circumcenters and Vectors (in Geometry) Posted on 20171231 (2 Comments) 
 Analytic solution by Jer (20180101 14:21:44) 
Under Three triplets (in Numbers) Posted on 20171230 (6 Comments) 
 re(4): computer solution finds one more by Jer (20180101 14:28:35) 
 Solution by Jer (20171230 10:22:18) 
Under Pandigital and divisible (in Numbers) Posted on 20171229 (3 Comments) 
 Start of impractical analytical solution by Jer (20171229 12:04:42) 
Under Below 25 (in Numbers) Posted on 20171228 (4 Comments) 
 All solutions by Jer (20171228 10:13:39) 
Under A prime nonuplet (in Numbers) Posted on 20171227 (4 Comments) 
 re: computer solution (spoiler) by Jer (20171227 22:11:16) 
Under Persistence I (in Numbers) Posted on 20171224 (3 Comments) 
 The easy ones by Jer (20171224 13:52:03) 
Under Magic circle revisited (in Numbers) Posted on 20171222 (5 Comments) 
 Unanswered question by Jer (20171223 22:58:35) 
Under One problem  many ways to solve... (in Numbers) Posted on 20171221 (6 Comments) 
 re: Simple way to determine t by Jer (20171221 21:15:25) 
 Simple ways with calculator by Jer (20171221 10:22:14) 
Under LOP (in Geometry) Posted on 20171213 (7 Comments) 
 re(2): GSP exploration by Jer (20171214 10:36:12) 
Under Perform and explain (in Tricks) Posted on 20171212 (11 Comments) 
 Proof by Jer (20171212 11:47:16) 
Under Verify and prove (in Sequences) Posted on 20171210 (5 Comments) 
 Classic induction by Jer (20171210 19:38:26) 
Under Just 4 different digits (in Numbers) Posted on 20171203 (10 Comments) 
 You two... by Jer (20171203 21:22:48) 
 Too many  here's some by Jer (20171203 10:24:46) 
Under TNT (in Geometry) Posted on 20171125 (2 Comments) 
 Solution by Jer (20171126 11:16:42) 
Under Where Did You Start? (in Just Math) Posted on 20171116 (3 Comments) 
 My approach by Jer (20171117 07:34:50) 
Under Talking BIG (in Numbers) Posted on 20171110 (3 Comments) 
 Really good approximation and a way to get exact by Jer (20171111 22:35:23) 
 Good approximation, upper bound by Jer (20171110 08:34:45) 
Under Rectangle in a circle (in Just Math) Posted on 20171107 (4 Comments) 
 Note: by Jer (20171107 14:27:27) 
Under X & Y erased (in Numbers) Posted on 20171103 (1 Comments) 
 Solution if I read you right. by Jer (20171103 10:14:18) 
Under More Than One Solution? (in Games) Posted on 20171026 (3 Comments) 
 Another solution by Jer (20171026 18:07:13) 
Under It is not SIX (in Numbers) Posted on 20171026 (4 Comments) 
 A big cheat to get 702 and 810 to count. by Jer (20171028 23:45:44) 
 Further thoughts by Jer (20171026 11:01:11) 
 Solution by Jer (20171026 10:48:58) 
Under Does it continue? An original. (in Numbers) Posted on 20171020 (7 Comments) 
 re(3): computer solution by Jer (20171020 15:52:46) 
 re: computer solution by Jer (20171020 11:12:26) 
Under The olog is t anagrammed (in Word Problems) Posted on 20171019 (1 Comments) 
 Sol ut ion by Jer (20171019 15:48:05) 
Under What's out? (in Word Problems) Posted on 20171013 (3 Comments) 
 another couple solutions by Jer (20171013 08:51:13) 
Under Like CABACB (in Word Problems) Posted on 20171008 (2 Comments) 
 A solution for k=26 by Jer (20171009 13:25:55) 
 possible k's. k=26 not solved. by Jer (20171009 11:34:59) 
Under Squeeze in (in Word Problems) Posted on 20171005 (4 Comments) 
 Fits all but one. by Jer (20171005 09:20:58) 
Under Does it continue? 6: Partial sums (in Numbers) Posted on 20170925 (7 Comments) 
 Notes by Jer (20170925 20:24:38) 
Under Does it continue? 5: powers of 2 (in Numbers) Posted on 20170924 (6 Comments) 
 The question by Jer (20170925 10:53:13) 
Under Does it continue? 4: Euclid's next prime (in Numbers) Posted on 20170921 (3 Comments) 
 Your thoughts? by Jer (20170921 21:05:31) 
Under Does it continue? 2: Prime or not? (in Numbers) Posted on 20170916 (6 Comments) 
 re(2): Does it continue? by Jer (20170918 07:35:20) 
 Does it continue? by Jer (20170917 21:07:16) 
Under Cryptaquote I (in Word Problems) Posted on 20170914 (6 Comments) 
 Opposites by Jer (20170914 14:12:45) 
Under Does it continue? 1: Chord regions (in Sequences) Posted on 20170913 (9 Comments) 
 Does it continue? by Jer (20170917 21:10:32) 
 Correction: shift n by Jer (20170913 11:32:51) 
Under MMMMMM Donut (in Just Math) Posted on 20170911 (4 Comments) 
 re: another approach by Jer (20170911 20:36:39) 
Under Lots of lods (in Sequences) Posted on 20170910 (7 Comments) 
 re(2): One type of proof by Jer (20170911 07:35:26) 
 One type of proof by Jer (20170910 10:09:21) 
Under Parallelograms (in Geometry) Posted on 20170909 (5 Comments) 
 May I have a hint, please? by Jer (20170911 20:52:59) 
Under Getting closer to your pie (in Numbers) Posted on 20170904 (10 Comments) 
 part c by Jer (20170904 10:51:28) 
 obvious ones by Jer (20170904 10:09:20) 
Under Triangle in a triangle (in Shapes) Posted on 20170828 (4 Comments) 
 re(2): How about this one? by Jer (20170828 15:19:12) 
Under Strobogrammatic to pandigital (in Numbers) Posted on 20170826 (4 Comments) 
 re: An answer by Jer (20170826 17:07:24) 
Under Next Numbers Please #9 (in Numbers) Posted on 20170823 (9 Comments) 
 re(4): When 12 appears by Jer (20170828 15:20:21) 
 re(2): When 12 appears by Jer (20170827 18:19:58) 
Under Sixty is Special (in Geometry) Posted on 20170818 (1 Comments) 
 Solution & a further result by Jer (20170827 17:58:50) 
Under Planks across a ditch (in Shapes) Posted on 20170817 (4 Comments) 
 Intentions of the problem as d4 by Jer (20170818 20:59:28) 
Under Marbles in boxes (in Algorithms) Posted on 20170816 (5 Comments) 
 re(2): solution  OEIS by Jer (20170817 15:20:50) 
Under Nondivisibility by 11 (in Just Math) Posted on 20170806 (2 Comments) 
 Solution and more by Jer (20170806 09:24:22) 
Under A unique Heronian triangle (in Geometry) Posted on 20170805 (6 Comments) 
 Problem could have been worded better. by Jer (20170806 09:07:13) 
Under Dec = xeh (in Numbers) Posted on 20170802 (5 Comments) 
 re: ...following jer's hint by Jer (20170805 09:03:40) 
 Hint by Jer (20170802 20:43:18) 
Under Two parallelograms (in Geometry) Posted on 20170801 (3 Comments) 
 Simple solution by Jer (20170801 10:55:04) 
Under Find this word (in Word Problems) Posted on 20170731 (7 Comments) 
 Eureka! by Jer (20170731 22:03:44) 
Under Pruned Triangle (in Geometry) Posted on 20170728 (1 Comments) 
 Sketch of a solution by Jer (20170728 19:28:06) 
Under Add'em all ! (in Numbers) Posted on 20170727 (3 Comments) 
 hand solution by Jer (20170727 12:43:06) 
Under Pandigitals Divided by 11 (in Numbers) Posted on 20170723 (4 Comments) 
 Solution by cases by Jer (20170723 16:34:08) 
Under 2 bases (in Numbers) Posted on 20170721 (2 Comments) 
 Solution by Jer (20170721 10:47:34) 
Under From Mahavira (in Just Math) Posted on 20170718 (11 Comments) 
 re(4): Simple Solution, simpleyes ... correctYes by Jer (20170719 13:25:16) 
 Consider the date by Jer (20170718 14:38:31) 
Under Unpainting Black (in Probability) Posted on 20170714 (5 Comments) 
 Preliminary work & thoughts by Jer (20170714 09:35:58) 
Under Commutative Exponentiation (in Just Math) Posted on 20170707 (7 Comments) 
 Real solutions by Jer (20170707 12:20:19) 
Under Many Knights (in Games) Posted on 20170705 (1 Comments) 
 Solution? by Jer (20170705 09:33:58) 
Under 38s and Bunches of 1s (in Numbers) Posted on 20170630 (7 Comments) 
 Another way of seeing part of it by Jer (20170630 14:03:47) 
Under Pythagoras' corner (in Geometry) Posted on 20170616 (3 Comments) 
 re: Cutting Corners? by Jer (20170617 10:34:23) 
Under Red vs Black Cuts (in Numbers) Posted on 20170605 (8 Comments) 
 re(2): Solution by Jer (20170605 09:51:37) 
 Solution by Jer (20170605 09:29:12) 
Under Delian delight (in Geometry) Posted on 20170604 (3 Comments) 
 re: solution / hint by Jer (20170604 16:14:00) 
Under Memory Match Game (in Probability) Posted on 20170531 (9 Comments) 
 re: computer discovery by Jer (20170531 21:18:03) 
Under Unbalanced? No problem (in Weights and Scales) Posted on 20170530 (7 Comments) 
 Simpler solution by Jer (20170530 13:35:13) 
Under Seven Region Partition (in Shapes) Posted on 20170527 (3 Comments) 
 Probably solution by Jer (20170529 08:31:25) 
Under Add one more circle (in Geometry) Posted on 20170521 (6 Comments) 
 Proof it's possible but this isn't the smallest by Jer (20190407 17:50:04) 
 re: Stumped by Jer (20170523 07:32:14) 
Under Four balls (in Probability) Posted on 20170519 (22 Comments) 
 Solution by Jer (20170519 11:56:13) 
Under Not every prime qualifies! (in Numbers) Posted on 20170515 (2 Comments) 
 Solution by Jer (20170515 09:25:46) 
Under One more line (in Logic) Posted on 20170510 (5 Comments) 
 More of the same by Jer (20170510 11:53:07) 
Under The length of the belt (in Geometry) Posted on 20170509 (5 Comments) 
 Raising the difficulty to 3. by Jer (20170509 14:54:04) 
 No Subject by Jer (20170509 14:45:18) 
Under The smallest nonconformist (in Numbers) Posted on 20170502 (3 Comments) 
 re: with computer assistance by Jer (20170502 13:49:29) 
Under A factorial in seconds (in Numbers) Posted on 20170418 (6 Comments) 
 My solution by Jer (20170418 15:15:18) 
Under Pandigital and square (in Numbers) Posted on 20170415 (6 Comments) 
 re(3): Pencil and Paper solution (spoiler) by Jer (20170416 18:18:39) 
Under Sticks in a Cube (in Shapes) Posted on 20170411 (3 Comments) 
 re(2): Solution by Jer (20170414 11:29:12) 
 Solution by Jer (20170412 14:55:44) 
Under Names in Boxes (in Logic) Posted on 20170409 (10 Comments) 
 re(2): Loops by Jer (20170412 13:27:25) 
 Thoughts by Jer (20170410 15:31:03) 
Under What is the value of "?" ? (in General) Posted on 20170406 (3 Comments) 
 Solution? no spoiler by Jer (20170406 15:42:37) 
Under S.o.S is S (in Numbers) Posted on 20170403 (6 Comments) 
 Is this the answer (spoiler) or the trivial one (not)? by Jer (20170403 14:38:54) 
Under Power partition procedure (in Numbers) Posted on 20170326 (5 Comments) 
 3rd solution  elegance by Jer (20170326 21:31:02) 
 Another solution by Jer (20170326 14:33:59) 
 One solution by Jer (20170326 14:26:21) 
Under 1 is one of them (in Numbers) Posted on 20170325 (2 Comments) 
 re: computer solution / OEIS by Jer (20170325 17:18:15) 
Under True for nine and up (in Numbers) Posted on 20170324 (3 Comments) 
 By hand by Jer (20170324 12:39:01) 
Under POPANASIS (in Word Problems) Posted on 20170323 (4 Comments) 
 re(2): Massive Search by Jer (20170325 09:31:44) 
 A hint by Jer (20170324 08:29:20) 
Under Up and up (in Numbers) Posted on 20170322 (2 Comments) 
 Solution by Jer (20170322 08:36:30) 
Under Same side story (in Probability) Posted on 20170316 (5 Comments) 
 Possible Solution by Jer (20170316 09:17:28) 
Under A Square Slab and a Cube (in Shapes) Posted on 20170312 (2 Comments) 
 Pieces of the second part by Jer (20170314 12:23:05) 
 First part by Jer (20170314 12:12:47) 
Under Staircases in a Cube (in Shapes) Posted on 20170310 (1 Comments) 
 Easiest CEs by Jer (20170310 11:58:09) 
Under Rectangle Point (in Geometry) Posted on 20170228 (2 Comments) 
 re: Solution by Jer (20180105 22:07:04) 
 Solution by Jer (20170228 11:31:26) 
Under Additional values (in Just Math) Posted on 20170122 (1 Comments) 
 Partial solution based on rewording the problem by Jer (20170123 10:26:10) 
Under An interesting recurrence (in Numbers) Posted on 20170117 (5 Comments) 
 re: Why there are many solutions by Jer (20170118 17:35:42) 
 Unreasonable by Jer (20170117 10:48:55) 
Under Squares sum up to a prime (in Just Math) Posted on 20170113 (4 Comments) 
 re: solution by Jer (20170113 16:41:35) 
Under 2nd grade math (in Probability) Posted on 20170112 (4 Comments) 
 re(2): solution  so about that math test by Jer (20170113 16:36:42) 
Under Beginning of the Month (in Logic) Posted on 20170109 (2 Comments) 
 Solution by Jer (20170109 13:41:41) 
Under Proving divisibility (in Just Math) Posted on 20170108 (2 Comments) 
 Prime indeed. by Jer (20170108 16:13:31) 
Under From Tangent to Circle (in Geometry) Posted on 20170104 (4 Comments) 
 Alternate solution by Jer (20170105 14:31:47) 
Under One to rule them all. (in Sequences) Posted on 20161218 (3 Comments) 
 Unproven formula by Jer (20161218 12:39:53) 
Under Pentagon Partitions (in Shapes) Posted on 20161211 (3 Comments) 
 Symmetry preserving solution. by Jer (20161213 10:24:57) 
Under Vieta's derivatives (in Just Math) Posted on 20161202 (2 Comments) 
 Calculator solution by Jer (20161205 10:01:30) 
Under Seven Hexominos and Two Triominos (in Shapes) Posted on 20161126 (1 Comments) 
 Hints by Jer (20161128 12:24:42) 
Under Equal Areas on Circles (in Geometry) Posted on 20161119 (1 Comments) 
 Analytic solution by Jer (20161119 09:00:48) 
Under Rational Resolution (in Just Math) Posted on 20161118 (2 Comments) 
 Direct solution by Jer (20161119 22:39:14) 
Under AABBCC and Perfect Square (in Just Math) Posted on 20161109 (6 Comments) 
 better solution by Jer (20161109 13:49:09) 
 Possible solution by Jer (20161109 13:19:24) 
Under Lucas Digits Look (in Just Math) Posted on 20161107 (20 Comments) 
 Indirect computation by Jer (20161107 09:25:13) 
Under Covering a Rectangle with Hexominos (in Shapes) Posted on 20161105 (1 Comments) 
 Hints by Jer (20161107 09:34:17) 
Under Hardest easy geometry problem (in Geometry) Posted on 20161104 (2 Comments) 
 Hint: auxiliary bits by Jer (20161119 08:35:51) 
Under RectangleDiagonal (in Geometry) Posted on 20161102 (1 Comments) 
 Solution by Jer (20161102 14:26:28) 
Under A peculiar triplet (in Just Math) Posted on 20161101 (7 Comments) 
 The triple without complete proof by Jer (20161101 13:27:52) 
Under The Ninth Hexomino (in Shapes) Posted on 20161028 (1 Comments) 
 Hint (the ninth) by Jer (20161029 16:34:02) 
Under Totient Trial (in Just Math) Posted on 20161024 (2 Comments) 
 My way by Jer (20161024 13:39:57) 
Under Ratio Resolution IV (in Weights and Scales) Posted on 20161020 (3 Comments) 
 Solution? by Jer (20161020 11:31:39) 
Under Prove Phi's Peculiar Property (in Numbers) Posted on 20161017 (3 Comments) 
 re: A different approach (spoiler) by Jer (20161019 12:57:58) 
Under No Fault Coverage 2 (in Shapes) Posted on 20161010 (1 Comments) 
 Hint by Jer (20161010 20:41:20) 
Under Ratio Sum Equation (in Just Math) Posted on 20161009 (1 Comments) 
 Some thoughts and a few solutions by Jer (20161009 16:59:52) 
Under Nine Hexominos in a Square (in Shapes) Posted on 20161007 (2 Comments) 
 Request for hint by Jer (20161009 17:06:22) 
Under Covering a Square with Hexominos (in Shapes) Posted on 20161006 (1 Comments) 
 Hint by Jer (20161009 17:02:48) 
Under Wrapping a Regular Hexagon (in Shapes) Posted on 20161005 (1 Comments) 
 First approximation by Jer (20161005 13:31:13) 
Under Rectangle Evasion (in Shapes) Posted on 20160929 (1 Comments) 
 Hint by Jer (20160930 17:19:49) 
Under Carfax (in General) Posted on 20160929 (2 Comments) 
 posibilities by Jer (20160929 09:53:22) 
Under Unit Cube Paint Undertaking (in Shapes) Posted on 20160928 (6 Comments) 
 re: Considering all the possibilities by Jer (20160929 07:27:30) 
Under No data  just a weighing problem (in General) Posted on 20160927 (2 Comments) 
 My solution by Jer (20160927 13:30:12) 
Under Immobile Hexominos (in Shapes) Posted on 20160925 (1 Comments) 
 Hint by Jer (20160926 11:54:38) 
Under Area search (in Geometry) Posted on 20160919 (2 Comments) 
 Very simple solution by Jer (20160919 13:18:20) 
Under Eight Hexominos plus a Tetromino (in Shapes) Posted on 20160917 (2 Comments) 
 Variants by Jer (20160918 14:20:16) 
 Placement of tetromino Hint by Jer (20160918 14:17:08) 
Under Quadrilateral and Radius Query (in Shapes) Posted on 20160915 (1 Comments) 
 hand waving answer by Jer (20160918 18:00:34) 
Under Sparse Packing a ZigZag (in Shapes) Posted on 20160911 (1 Comments) 
 Hint by Jer (20160911 13:33:07) 
Under Lopsided THexomino (in Shapes) Posted on 20160909 (2 Comments) 
 Request for a hint by Jer (20160911 13:39:10) 
Under Hexominos and Squares (in Shapes) Posted on 20160907 (1 Comments) 
 Hint by Jer (20160911 13:36:19) 
Under Polygon Area Ponder (in Shapes) Posted on 20160901 (2 Comments) 
 Solution by Jer (20160901 13:25:49) 
Under Ten LHexominos (in Shapes) Posted on 20160831 (3 Comments) 
 re(2): I'd like a hint by Jer (20160902 16:48:16) 
 I'd like a hint by Jer (20160901 20:23:45) 
Under Random Chess Pieces Poser (in Probability) Posted on 20160829 (6 Comments) 
 re: computer aided solution by Jer (20160829 21:23:12) 
Under All rational numbers in (in Sequences) Posted on 20160826 (10 Comments) 
 re(2): From N/D to n @ jer & Charlie by Jer (20160829 08:44:19) 
 From N/D to n by Jer (20160828 17:09:33) 
Under THexomino Packing (in Shapes) Posted on 20160826 (1 Comments) 
 Part 1 only by Jer (20160828 21:34:17) 
Under Powers of 3 (in Numbers) Posted on 20160825 (5 Comments) 
 The only actual solution so far by Jer (20160826 10:17:40) 
 re: Computer exploration by Jer (20160825 21:27:27) 
Under Labeling Minimum (in Weights and Scales) Posted on 20160825 (4 Comments) 
 re(2): Solution by Jer (20160825 14:06:33) 
 Solution by Jer (20160825 10:19:08) 
Under Business is business (in Word Problems) Posted on 20160824 (6 Comments) 
 Hint for previous solvers. by Jer (20160824 09:37:02) 
Under Year from Ratio (in General) Posted on 20160822 (3 Comments) 
 Solution by Jer (20160822 12:48:50) 
Under Estimate a percentage (in Numbers) Posted on 20160822 (6 Comments) 
 A simple upperbound by Jer (20160822 11:06:05) 
Under Covering a Cube with Strips (in Shapes) Posted on 20160818 (3 Comments) 
 Solution to Part 1. Thoughts on part 2. Extensions. by Jer (20160818 17:09:11) 
Under Square angles (in Shapes) Posted on 20160802 (1 Comments) 
 D1? Full solution. by Jer (20160802 12:22:10) 
Under Weight Limited Bridge (in General) Posted on 20160801 (6 Comments) 
 re(2): answer  spoiler by Jer (20160801 21:37:50) 
Under Mirror multiplication (in Numbers) Posted on 20160731 (8 Comments) 
 Some algebra by Jer (20160731 20:59:54) 
Under Square in a Cone (in Shapes) Posted on 20160729 (2 Comments) 
 Can this be all? by Jer (20160729 14:13:27) 
Under A Tetrahedral Volume Puzzle (in Shapes) Posted on 20160728 (1 Comments) 
 Possible solution by Jer (20160728 10:30:10) 
Under A surprising prime gap (in Numbers) Posted on 20160727 (8 Comments) 
 re(4): My solution by Jer (20160731 21:45:02) 
 My solution by Jer (20160727 18:05:19) 
Under 15 Triominoes (in Shapes) Posted on 20160726 (4 Comments) 
 re(2): Harder case by Jer (20160727 21:31:41) 
 Harder case by Jer (20160727 08:58:07) 
Under Go back or double (in Sequences) Posted on 20160725 (5 Comments) 
 re: part 1 by Jer (20160725 11:30:11) 
Under Table Partition Trial (in Shapes) Posted on 20160724 (3 Comments) 
 re: 10/11 of the other pentominoes by Jer (20160724 14:14:49) 
 D1 argument by Jer (20160724 12:10:20) 
Under Triangle Area and Integer Finding (in Shapes) Posted on 20160723 (2 Comments) 
 Full solution by Jer (20160726 11:39:54) 
Under Seventh Term Settlement (in Sequences) Posted on 20160722 (10 Comments) 
 Is an algebraic solution likely by Jer (20160722 11:16:48) 
Under Two items to get sqrt of 2 (in Science) Posted on 20160719 (5 Comments) 
 re(2): another way(s) by Jer (20160726 09:49:15) 
 Shoes land on their feet. A solution. by Jer (20160719 10:28:08) 
Under The First Repeat (in Probability) Posted on 20160718 (5 Comments) 
 re: solution by Jer (20160718 21:13:16) 
Under Equilateral Exercise (in Shapes) Posted on 20160715 (1 Comments) 
 Solution by Jer (20160715 17:40:35) 
Under Restricted Five Coin Sort (in Weights and Scales) Posted on 20160714 (1 Comments) 
 Solution by Jer (20160714 13:47:58) 
Under Prove SG's theorem (in Just Math) Posted on 20160712 (3 Comments) 
 Solution and related result by Jer (20160713 10:20:51) 
Under Two Digit Diameter Trial (in Shapes) Posted on 20160711 (2 Comments) 
 analytic solution by Jer (20160711 17:24:07) 
Under Multiple Harshad Numbers (in Numbers) Posted on 20160710 (12 Comments) 
 re: Moby Dick has been captured  part 2 solved by Jer (20160714 13:55:58) 
Under Sum Reals, Get Integer (in Just Math) Posted on 20160709 (3 Comments) 
 re: Solution by Jer (20160709 13:50:28) 
Under Circle Cover Conclusion (in Shapes) Posted on 20160707 (2 Comments) 
 Interpretation 2: Overlap by Jer (20160707 14:13:26) 
 Interpretation 1: Nonoverlap by Jer (20160707 13:23:56) 
Under Quadrilateral Area Query 2 (in Shapes) Posted on 20160703 (3 Comments) 
 On side order by Jer (20160703 22:10:49) 
Under 4 numbers make 5 squares (in Numbers) Posted on 20160630 (10 Comments) 
 re: A (bad?) guess by Jer (20160701 11:11:57) 
 re: computer solution and discussion by Jer (20160630 16:42:25) 
Under Simple number trick (in Numbers) Posted on 20160629 (5 Comments) 
 re: Likely answer by Jer (20160630 09:08:26) 
 re: comment by Jer (20160629 10:45:33) 
Under Covering a Square (in Shapes) Posted on 20160624 (2 Comments) 
 re: One arrangment by Jer (20160624 12:11:28) 
Under Find From Four 2 (in Just Math) Posted on 20160623 (4 Comments) 
 long way complete solution by Jer (20160623 21:17:49) 
Under Three Integer Root Sum (in Just Math) Posted on 20160622 (2 Comments) 
 Alternate solution by Jer (20160622 13:37:44) 
Under Three vowels (in Word Problems) Posted on 20160621 (4 Comments) 
 List of countries by Jer (20160621 12:37:06) 
Under Go for the midpoint (in Geometry) Posted on 20160618 (4 Comments) 
 Slightly different Solution by Jer (20160618 17:02:59) 
Under Comparing two events (in Probability) Posted on 20160615 (3 Comments) 
 solution by Jer (20160616 09:42:03) 
Under Arithmetic Product Puzzle 2 (in Sequences) Posted on 20160614 (2 Comments) 
 Suspicion of solution by Jer (20160614 09:53:19) 
Under Duodecimal Digit Product and Number Puzzle (in Just Math) Posted on 20160612 (2 Comments) 
 Solution by Jer (20160612 17:51:42) 
Under Isosceles Leg Length (in Shapes) Posted on 20160609 (6 Comments) 
 The issue by Jer (20160611 12:11:39) 
 3 Solutions to an impossible task by Jer (20160611 12:06:08) 
Under Random chord problem 2 (in Probability) Posted on 20160609 (1 Comments) 
 Solution by Jer (20160609 14:19:55) 
Under Twice 2 products (in Numbers) Posted on 20160607 (2 Comments) 
 Exhausted Spoiler by Jer (20160607 11:33:35) 
Under Edge problem (in Geometry) Posted on 20160531 (3 Comments) 
 solution and alternate by Jer (20160531 13:22:04) 
Under Log Expression Exercise (in Just Math) Posted on 20160530 (2 Comments) 
 Solution by Jer (20160530 08:41:29) 
Under Digit Sum Equation Puzzle (in Just Math) Posted on 20160528 (5 Comments) 
 A more full solution. by Jer (20160528 19:20:35) 
 Possible solution by Jer (20160528 14:24:16) 
Under Power of 2 (in Numbers) Posted on 20160527 (6 Comments) 
 re: computer solution by Jer (20160527 16:42:04) 
 What I can find by Jer (20160527 11:40:18) 
Under Mark's itinerary (in Probability) Posted on 20160526 (5 Comments) 
 re(2): An by Jer (20160529 21:05:33) 
 An "I've not learned of Mr. O.V." Solution by Jer (20160528 22:19:25) 
Under Duodecimal Element Sum Settlement (in Just Math) Posted on 20160525 (3 Comments) 
 re: working in decimal, same answer by Jer (20160525 20:20:09) 
 Solution (assuming I kept my bases straight) by Jer (20160525 13:14:55) 
Under Laugh, USA (in General) Posted on 20160524 (2 Comments) 
 Some options from my commonwealth by Jer (20160524 13:39:23) 
Under Projection Ponder (in Shapes) Posted on 20160523 (2 Comments) 
 re: solution / generalization by Jer (20160524 07:25:27) 
Under 3 integers (in Just Math) Posted on 20160523 (2 Comments) 
 Remarks by Jer (20160523 09:51:05) 
 Solutions only by Jer (20160523 09:28:28) 
Under Gambler's policy (in Probability) Posted on 20160520 (2 Comments) 
 re: computer assisted solution / coolness by Jer (20160520 21:46:01) 
Under A direct count (in Famous Riddles) Posted on 20160519 (4 Comments) 
 Hint by Jer (20160519 11:18:01) 
Under Rocking moves (in Logic) Posted on 20160517 (3 Comments) 
 re(2): Solution by Jer (20160519 07:19:50) 
Under A cube with missing row (in Numbers) Posted on 20160516 (1 Comments) 
 What are you asking for? (Possible spoiler) by Jer (20160516 09:19:28) 
Under Cubic and Quadratic Determination (in Just Math) Posted on 20160514 (3 Comments) 
 re: Possible solution by Jer (20160514 14:45:28) 
Under From challenge to change (in Word Problems) Posted on 20160512 (4 Comments) 
 Spoiler by Jer (20160512 14:19:40) 
Under Terrific sequence (in Sequences) Posted on 20160510 (6 Comments) 
 re: A hint by Jer (20160516 09:26:01) 
Under Puzzle Calendar (in General) Posted on 20160509 (5 Comments) 
 Solution by Jer (20160509 21:15:20) 
Under Hexagon Hinder 2 (in Shapes) Posted on 20160506 (2 Comments) 
 Observation by Jer (20160507 21:35:32) 
Under Create this string (in Numbers) Posted on 20160504 (6 Comments) 
 re(2): Solution by Jer (20160504 21:07:23) 
Under Is it true? (in Just Math) Posted on 20160502 (2 Comments) 
 Solution by formulas by Jer (20160502 09:19:38) 
Under Four From Arithmetic and Geometric (in Sequences) Posted on 20160429 (3 Comments) 
 All solutions (spoiler) by Jer (20160429 12:15:45) 
Under Much of few is many (in Numbers) Posted on 20160428 (2 Comments) 
 Full solution by Jer (20160428 11:59:32) 
Under M.G.'s wit (in Just Math) Posted on 20160427 (3 Comments) 
 Working backwards. Spoiler. by Jer (20160427 13:14:08) 
Under TO and FRO (in Just Math) Posted on 20160425 (4 Comments) 
 Process in my head by Jer (20160425 17:57:51) 
Under Cubic Diophantine Conclusion (in Just Math) Posted on 20160422 (9 Comments) 
 re(4): Start by Jer (20160424 15:00:55) 
Under An educated guess (in Probability) Posted on 20160418 (7 Comments) 
 re(2): Preliminary guess / my guess by Jer (20160418 11:29:06) 
Under Rectangular Crease Resolution (in Shapes) Posted on 20160415 (2 Comments) 
 Quick solution by Jer (20160415 11:52:20) 
Under Proof requested (in Geometry) Posted on 20160414 (3 Comments) 
 simplified geometric proof by Jer (20160415 13:59:05) 
 Analytical solution by Jer (20160415 13:45:37) 
Under 1 to 9 concatenation (in Numbers) Posted on 20160412 (7 Comments) 
 re: computer solution by Jer (20160413 07:21:29) 
 re: Analytic Answer by Jer (20160412 14:11:58) 
 Listing all n's lead to an interesting observation by Jer (20160412 14:03:44) 
Under Extreme Palindrome Exercise (in Just Math) Posted on 20160411 (3 Comments) 
 Analytic solution by Jer (20160411 09:29:48) 
Under Quadrilateral Area Query (in Shapes) Posted on 20160410 (2 Comments) 
 Long Solution by Jer (20160410 16:42:22) 
Under Square Settlement With Digits (in Just Math) Posted on 20160407 (2 Comments) 
 Ten solutions by Jer (20160407 14:02:58) 
Under Circle Line Length (in Shapes) Posted on 20160407 (3 Comments) 
 Solution by Jer (20160408 11:37:32) 
Under Complex Number Query (in Just Math) Posted on 20160403 (1 Comments) 
 Solution (probably the hard way) by Jer (20160403 20:19:34) 
Under Nonconstant Product (in Just Math) Posted on 20160402 (3 Comments) 
 re: Solution  correction by Jer (20160403 20:37:25) 
Under Tatami Tiling (in Shapes) Posted on 20160329 (2 Comments) 
 A different solution. by Jer (20160329 19:23:21) 
Under Starshaped polyominos (in Shapes) Posted on 20160328 (7 Comments) 
 re(3): Solution Part A by Jer (20160328 19:57:28) 
 re: Solution Part A by Jer (20160328 16:55:49) 
Under Sum from Arithmetic and Geometric (in Sequences) Posted on 20160324 (5 Comments) 
 Possible Solution by Jer (20160324 13:22:49) 
Under Double Reflection (in Geometry) Posted on 20160324 (2 Comments) 
 Alternate solution by Jer (20160324 10:53:44) 
Under Neighbors or not? (in Probability) Posted on 20160322 (3 Comments) 
 re: Solution by Jer (20160323 09:53:18) 
Under Insert Zero (in Numbers) Posted on 20160321 (5 Comments) 
 re: Solution by Jer (20160321 17:27:26) 
 Solution by Jer (20160321 12:30:42) 
Under Rational Value Validation (in Just Math) Posted on 20160320 (11 Comments) 
 re: cardinality of solution set by Jer (20160321 09:54:59) 
Under Find number and base (in Numbers) Posted on 20160317 (6 Comments) 
 re: solution by Jer (20160317 11:10:59) 
Under Today is Monday & a PIday (in Numbers) Posted on 20160314 (13 Comments) 
 re: No Subject by Jer (20160315 13:45:13) 
 re(3): My best @ jer and CH by Jer (20160315 09:38:52) 
 My best by Jer (20160314 18:01:56) 
Under Form 21 n Times (in Numbers) Posted on 20160311 (2 Comments) 
 Solution spoiler by Jer (20160311 11:02:42) 
Under Rectangles and U Pentominos (in Shapes) Posted on 20160308 (4 Comments) 
 re: posible solution 2 by Jer (20160309 18:05:13) 
 Possible solution. by Jer (20160309 09:44:32) 
Under d1 or more ? (in Numbers) Posted on 20160307 (4 Comments) 
 Why I'm with Ady by Jer (20160307 10:47:25) 
Under Sum Root Value (in Just Math) Posted on 20160305 (2 Comments) 
 Some thoughts by Jer (20160305 12:02:16) 
Under Four P Pentominoes (in Shapes) Posted on 20160304 (4 Comments) 
 Solutions by Jer (20160304 11:56:12) 
Under Three Ways to Put a Square in a Triangle (in Shapes) Posted on 20160226 (8 Comments) 
 re(2): My solution by Jer (20160227 22:35:46) 
 My solution by Jer (20160227 12:46:15) 
Under Geometric and Three Power Travail (in Sequences) Posted on 20160222 (2 Comments) 
 solution by Jer (20160222 11:03:46) 
Under Perimeter from Doublecones (in Shapes) Posted on 20160220 (3 Comments) 
 re(2): Solution by Jer (20160224 12:29:36) 
 Solution by Jer (20160223 11:06:29) 
Under Matching Isosceles and Right Triangle (in Geometry) Posted on 20160219 (7 Comments) 
 re: An idea by Jer (20160221 22:13:27) 
 An idea by Jer (20160220 16:18:39) 
Under Counting Ten Segment Paths (in General) Posted on 20160219 (6 Comments) 
 As many as I found by Jer (20160219 11:03:32) 
Under Area From Even Floor (in Just Math) Posted on 20160215 (2 Comments) 
 Solution by Jer (20160215 12:30:34) 
Under Big difference (in Numbers) Posted on 20160214 (4 Comments) 
 re: computer solutions by Jer (20160214 15:30:09) 
Under Hexagon Hinder (in Shapes) Posted on 20160212 (2 Comments) 
 General solution by Jer (20160212 09:16:19) 
 Simple solution by Jer (20160212 09:02:01) 
Under Boxes galore (in Numbers) Posted on 20160211 (2 Comments) 
 Possible solution by Jer (20160211 09:20:44) 
Under Optimal Order (in Sequences) Posted on 20160210 (5 Comments) 
 re(2): This should work by Jer (20160214 11:48:59) 
 re: This should work by Jer (20160213 21:26:34) 
 This should work by Jer (20160211 11:56:25) 
Under Two Square Settlement (in Shapes) Posted on 20160209 (1 Comments) 
 Solution by Jer (20160210 11:58:01) 
Under Interesting representation (in Numbers) Posted on 20160208 (6 Comments) 
 re(2): Nonanswer by Jer (20160208 20:08:53) 
 Nonanswer by Jer (20160208 15:42:16) 
Under Coefficient From Roots (in Just Math) Posted on 20160207 (2 Comments) 
 Solution  the hard way by Jer (20160207 16:12:32) 
Under a version of NIM (in Games) Posted on 20160204 (3 Comments) 
 Mapping out a bit by Jer (20160204 20:20:26) 
Under Word Grid (in Word Problems) Posted on 20160204 (6 Comments) 
 re(2): partial spoiler. by Jer (20160204 17:12:55) 
Under Dascal triangle (in Numbers) Posted on 20160202 (8 Comments) 
 re(4): computer solution by Jer (20160204 07:24:10) 
 re: computer solution by Jer (20160203 11:14:00) 
Under Erase the right 90 (in Numbers) Posted on 20160128 (5 Comments) 
 Sequence? by Jer (20160129 07:26:40) 
Under Last term zero (in Sequences) Posted on 20160128 (3 Comments) 
 Spoiler by Jer (20160128 09:34:50) 
Under Integer Illation From Divisors (in Just Math) Posted on 20160127 (2 Comments) 
 Solution by Jer (20160127 10:18:51) 
Under Evaluate probabilities (in Probability) Posted on 20160126 (3 Comments) 
 re: Counting, Counting (spoiler)  decimals by Jer (20160126 10:27:10) 
Under Three Jar Trial (in Weights and Scales) Posted on 20160125 (4 Comments) 
 Concise solution by Jer (20160126 07:31:10) 
Under Find the next two numbers (in Sequences) Posted on 20160121 (4 Comments) 
 Answer, no spoiler by Jer (20160121 07:51:59) 
Under Three Power Verification (in Just Math) Posted on 20160120 (4 Comments) 
 re: Solution by Jer (20160121 07:49:36) 
Under Detect my chosen coin (in Games) Posted on 20160119 (19 Comments) 
 Some ideas by Jer (20160120 08:21:47) 
Under 9 coins prob (in Weights and Scales) Posted on 20160118 (6 Comments) 
 A solution by Jer (20160118 12:17:21) 
Under 6 coins (in Weights and Scales) Posted on 20160113 (10 Comments) 
 re: Solution / counterexample by Jer (20160113 12:21:16) 
Under Four balloons (in Just Math) Posted on 20160112 (4 Comments) 
 re: Solution / efficiency challenge by Jer (20160114 10:40:32) 
 Solution by Jer (20160112 10:45:41) 
Under Primevens and primeodds (in Numbers) Posted on 20160110 (8 Comments) 
 re(2): some stats extended by Jer (20160110 20:18:57) 
Under Tan Settlement (in Shapes) Posted on 20160109 (3 Comments) 
 A false start and an approximation by Jer (20160110 20:07:19) 
Under Lost in the woods (in Just Math) Posted on 20160108 (12 Comments) 
 About the problem by Jer (20160110 12:06:23) 
 re: Graphic? by Jer (20160110 11:32:00) 
 Not there yet. by Jer (20160109 23:25:15) 
 re: proposed solution by Jer (20160108 21:52:48) 
Under A math symbol (in Numbers) Posted on 20160108 (10 Comments) 
 re: The 3rd one by Jer (20160108 21:49:54) 
 More perhaps by Jer (20160108 09:13:07) 
Under Pumpkins 5 (in Weights and Scales) Posted on 20160106 (2 Comments) 
 Solution by Jer (20160106 11:14:20) 
Under Test #9 (in Word Problems) Posted on 20160105 (3 Comments) 
 Rem3 was right by Jer (20160105 10:21:29) 
Under One out of Five (in Weights and Scales) Posted on 20160104 (2 Comments) 
 Solution by Jer (20160104 10:10:44) 
Under Floor and Square Division Settlement (in Just Math) Posted on 20160101 (4 Comments) 
 re(2): answer by Jer (20160102 12:23:49) 
Under Peaceful superqueens (in General) Posted on 20151231 (2 Comments) 
 fivebyfive by Jer (20151231 14:59:20) 
Under Monotonous integers (in Numbers) Posted on 20151230 (9 Comments) 
 different answer by Jer (20151230 12:57:55) 
Under One of Sixteen (in Weights and Scales) Posted on 20151229 (12 Comments) 
 re(3): Short solution. by Jer (20160112 10:20:32) 
 re: Short solution. by Jer (20160111 12:30:33) 
Under Equiangular Hexagon Query (in Shapes) Posted on 20151229 (1 Comments) 
 Solution and comment by Jer (20151230 11:40:30) 
Under Triangle Area Ascertainment (in Shapes) Posted on 20151226 (2 Comments) 
 Ideas that didn't work and then GSP solution by Jer (20151227 21:34:28) 
Under Run away (in Games) Posted on 20151222 (3 Comments) 
 re(2): Solution by Jer (20151223 13:20:20) 
 Solution by Jer (20151222 09:37:22) 
Under Quadratic and Five Variable Query (in Just Math) Posted on 20151220 (2 Comments) 
 simple solutions by Jer (20151220 15:48:24) 
Under ABCD Grid (in Logic) Posted on 20151216 (2 Comments) 
 Detailed Solution by Jer (20151220 12:19:11) 
Under Protecting the fleet Parts A. & B. (in Geometry) Posted on 20151214 (4 Comments) 
 re: solutions by Jer (20151214 16:56:41) 
Under Complex Equation Conclusion (in Just Math) Posted on 20151212 (3 Comments) 
 Solution by Jer (20151214 11:07:40) 
Under Using a standard deck (in Numbers) Posted on 20151211 (2 Comments) 
 Solution by Jer (20151211 12:57:28) 
Under A peculiar triangular number (in Numbers) Posted on 20151210 (2 Comments) 
 By OEIS by Jer (20151211 13:22:25) 
Under A special shortlist (in Numbers) Posted on 20151208 (3 Comments) 
 Analytical solution by Jer (20151208 11:25:09) 
Under Reversible hours (in Shapes) Posted on 20151207 (4 Comments) 
 re(2): Colon included / no cheating by Jer (20151209 11:34:46) 
 Colon included by Jer (20151207 16:14:42) 
Under Cos Case Concern (in Shapes) Posted on 20151206 (4 Comments) 
 re(2): Two solutions by Jer (20151206 20:04:43) 
 Two solutions by Jer (20151206 12:55:48) 
Under Two Power Equation Poser (in Just Math) Posted on 20151205 (1 Comments) 
 Solution by Jer (20151206 17:29:16) 
Under List of pairs (in Just Math) Posted on 20151204 (3 Comments) 
 re: computer solution  first eight pairs by Jer (20151204 12:50:00) 
Under Variety of divisors (in Numbers) Posted on 20151203 (3 Comments) 
 re(2): solution by Jer (20151203 12:02:35) 
Under Get the right product (in Just Math) Posted on 20151201 (5 Comments) 
 re: Different solution (dumb error) by Jer (20151202 14:05:17) 
 Different solution by Jer (20151202 07:18:54) 
Under Increasing sequences (in Just Math) Posted on 20151130 (3 Comments) 
 re: How about...? by Jer (20151202 10:54:33) 
Under No primes here (in Sequences) Posted on 20151130 (2 Comments) 
 Solution and thought process. by Jer (20151130 16:58:09) 
Under Coin contest (in Games) Posted on 20151127 (5 Comments) 
 re: 3 coins, 4 coins, and a question by Jer (20151127 23:02:14) 
 Simple case by Jer (20151127 16:19:13) 
Under Pair and Power Poser (in Just Math) Posted on 20151126 (1 Comments) 
 Solutions by graphing by Jer (20151127 16:01:12) 
Under Square in a notched square (in Geometry) Posted on 20151125 (3 Comments) 
 re: A thought (spoiler) by Jer (20151127 15:44:34) 
Under Biggest and smallest (in Just Math) Posted on 20151124 (2 Comments) 
 re: computer solution by Jer (20151124 11:05:37) 
Under Complex Number and Power Puzzle (in Just Math) Posted on 20151123 (1 Comments) 
 Solution by Jer (20151126 09:51:41) 
Under AINS (in Word Problems) Posted on 20151123 (3 Comments) 
 One possibility by Jer (20151123 08:33:49) 
Under Summing Consecutive Terms and Pair Determination (in Sequences) Posted on 20151121 (3 Comments) 
 Slight variant solution by Jer (20151121 12:48:22) 
Under Generalizing II (in Sequences) Posted on 20151120 (2 Comments) 
 another way to calculate by Jer (20151120 15:37:41) 
Under Optimizing Potency (in Algorithms) Posted on 20151119 (10 Comments) 
 re: Triangular numbers and Pascal's Triangle (spoiler) by Jer (20151126 22:26:07) 
 I think I got it. by Jer (20151120 15:32:57) 
 Possible improvement by Jer (20151120 14:12:58) 
Under Sum of powers (in Numbers) Posted on 20151118 (3 Comments) 
 Solution by Jer (20151118 08:33:17) 
Under Irrational Decision (in Just Math) Posted on 20151115 (6 Comments) 
 re(2): N=2 only by Jer (20151116 20:48:21) 
 N=2 only by Jer (20151116 07:26:45) 
Under Tiling and counting (in Numbers) Posted on 20151110 (2 Comments) 
 Solution and my story. by Jer (20151110 13:37:39) 
Under Complex Number Puzzle (in Just Math) Posted on 20151108 (2 Comments) 
 A more confident answer by Jer (20151109 14:11:51) 
 Maybe I got it (possible spoiler) by Jer (20151108 11:26:25) 
Under 10 4 7 10 (in Just Math) Posted on 20151103 (2 Comments) 
 A few by Jer (20151103 14:24:44) 
Under Two and only two (in Just Math) Posted on 20151103 (4 Comments) 
 re(2): a quick look by Jer (20151104 07:42:01) 
 re: a quick look by Jer (20151103 13:03:45) 
Under Prediction (in Tricks) Posted on 20151102 (2 Comments) 
 Solution and a followup by Jer (20151102 13:12:58) 
Under Term Sum Settlement (in Sequences) Posted on 20151029 (3 Comments) 
 Algebraic solution by Jer (20151029 16:31:34) 
Under Some questions of abundance (in Just Math) Posted on 20151028 (3 Comments) 
 re: proposed solution / counterexample by Jer (20151028 11:14:06) 
Under Factorizable Expressions (in Just Math) Posted on 20151021 (3 Comments) 
 re: The whole story? More. by Jer (20151022 07:21:33) 
 The whole story? by Jer (20151021 20:22:38) 
Under ndigit ... nth power (in Numbers) Posted on 20151020 (2 Comments) 
 Noncounting solution by Jer (20151020 13:42:48) 
Under Fly's schedule (in Just Math) Posted on 20151015 (1 Comments) 
 frozen flies don't spoil (spoiler) by Jer (20151015 09:12:14) 
Under Coefficient Determination (in Just Math) Posted on 20151014 (1 Comments) 
 Possible solution by Jer (20151014 13:02:39) 
Under Function Existence Exercise (in Just Math) Posted on 20151011 (4 Comments) 
 re(2): Almost there? by Jer (20151014 10:07:48) 
 Almost there? by Jer (20151013 14:01:28) 
Under Expression and Perfect Square (in Just Math) Posted on 20151010 (3 Comments) 
 Thoughts by Jer (20151011 09:43:26) 
Under sum of digits and 100th term (in Sequences) Posted on 20151008 (3 Comments) 
 re: I've probably miscounted but here goes. by Jer (20151009 08:16:30) 
Under Digit sum and digit product equality (in Just Math) Posted on 20151006 (2 Comments) 
 Links by Jer (20151007 07:30:21) 
Under Probability of constant leading (in Probability) Posted on 20151005 (5 Comments) 
 re(2): Formula with partial proof by Jer (20151006 12:58:38) 
 Formula with partial proof by Jer (20151006 08:15:19) 
Under Positive Integer Pair and Division Puzzle (in Just Math) Posted on 20151003 (1 Comments) 
 partial solution by Jer (20151005 14:02:47) 
Under All are... (in Word Problems) Posted on 20151002 (4 Comments) 
 re(2): Spoiler by Jer (20151005 13:25:32) 
Under Permutations count (in Numbers) Posted on 20151001 (10 Comments) 
 My misleading subject line. by Jer (20151002 13:38:33) 
 Simpler solution by Jer (20151002 07:28:14) 
Under Nine forever (in Just Math) Posted on 20150930 (2 Comments) 
 re: Aha! (spoiler) by Jer (20150930 17:32:16) 
Under Black and white socks (in Probability) Posted on 20150929 (8 Comments) 
 re: the big drawer by Jer (20150930 08:43:31) 
 re: Solution?? by Jer (20150929 13:22:09) 
Under Extreme Sum Settlement (in Just Math) Posted on 20150928 (4 Comments) 
 re(2): Solution (barring errors) by Jer (20150928 16:41:01) 
 Solution (barring errors) by Jer (20150928 13:05:08) 
Under Angle Ratio Ascertainment 2 (in Shapes) Posted on 20150926 (2 Comments) 
 A simpler problem by Jer (20150926 22:07:17) 
Under Families (in General) Posted on 20150925 (4 Comments) 
 Some of these are... by Jer (20150926 22:39:42) 
Under Quit as a winner (in Games) Posted on 20150924 (8 Comments) 
 re: some research (spoiler) by Jer (20150924 17:52:39) 
 re: First Thoughts by Jer (20150924 12:57:54) 
Under Less Than 2015 (in Just Math) Posted on 20150922 (3 Comments) 
 re: computer solution by Jer (20150923 09:52:46) 
Under Integer Pair and Infinite Puzzle (in Just Math) Posted on 20150920 (2 Comments) 
 Solution by Jer (20150922 13:39:31) 
Under Coordinating arrival (in Just Math) Posted on 20150915 (2 Comments) 
 Slightly different mothod to solution. by Jer (20150915 13:20:13) 
Under C reverses into F (in Numbers) Posted on 20150914 (10 Comments) 
 re(2): computer exploration ....... att ALL by Jer (20150915 07:26:01) 
 re(3): AB? hint by Jer (20150914 17:45:48) 
 AB? by Jer (20150914 13:38:23) 
Under Number Difference and Erasure Puzzle (in Just Math) Posted on 20150914 (3 Comments) 
 Too many to list by Jer (20150916 09:34:03) 
Under Prime Ratio Possibility (in Just Math) Posted on 20150911 (3 Comments) 
 Other numbers by Jer (20150911 11:47:59) 
Under Fair? (in Games) Posted on 20150910 (10 Comments) 
 re: Solution by Jer (20150914 12:03:02) 
Under Threesyllable word (in Tricks) Posted on 20150907 (3 Comments) 
 The answer? No. by Jer (20150907 21:21:33) 
Under Six countries (in General) Posted on 20150904 (8 Comments) 
 Alternate solution by Jer (20150904 17:27:40) 
Under Surprising answer (in Probability) Posted on 20150902 (6 Comments) 
 More info than you maybe wanted by Jer (20150902 17:50:09) 
Under Convex Hexagon and Ratio Product (in Shapes) Posted on 20150901 (3 Comments) 
 re: metasolution by Jer (20150901 12:39:27) 
Under Homophone Hunt 2 (in Word Problems) Posted on 20150831 (4 Comments) 
 Some starters by Jer (20150831 09:23:04) 
Under Ratio Sum Equals Positive Integer (in Just Math) Posted on 20150830 (3 Comments) 
 re(2): Answer, maybe full solution. by Jer (20150830 20:54:31) 
 Answer, maybe full solution. by Jer (20150830 16:47:23) 
Under Brick Packing Poser (in Shapes) Posted on 20150828 (3 Comments) 
 re(2): Solution by Jer (20150828 22:27:16) 
 Solution by Jer (20150828 14:00:30) 
Under Date Count Conclusion II (in General) Posted on 20150824 (1 Comments) 
 Solution by counting by Jer (20150824 21:19:15) 
Under Numbers in pi (in Numbers) Posted on 20150821 (3 Comments) 
 re: computer solution by Jer (20150821 12:11:49) 
Under Visit USA (in General) Posted on 20150820 (9 Comments) 
 re: Borders and boundaries by Jer (20150823 11:21:59) 
 re: If the goal is... by Jer (20150820 22:30:13) 
Under This or that? (in Probability) Posted on 20150819 (4 Comments) 
 Playing the lottery. by Jer (20150819 10:49:33) 
Under Divide et impera (in Numbers) Posted on 20150818 (2 Comments) 
 re: three computer solutions by Jer (20150818 12:50:35) 
Under Perfect Square Digit (in Just Math) Posted on 20150817 (2 Comments) 
 Solution by Jer (20150818 08:51:44) 
Under Infinite Triplet and Perfect Square (in Just Math) Posted on 20150816 (3 Comments) 
 A few by Jer (20150816 14:57:16) 
Under Positive Perfect Cube Sum (in Just Math) Posted on 20150815 (3 Comments) 
 An upper bound by Jer (20150816 08:04:53) 
Under Nonperfect Cube Root Sum (in Just Math) Posted on 20150814 (6 Comments) 
 re(2): An idea by Jer (20150814 23:46:14) 
 An idea by Jer (20150814 12:50:16) 
Under Rooting for 2015 (in Just Math) Posted on 20150814 (3 Comments) 
 re: confirmed solution by Jer (20150814 11:28:21) 
 Likely Solution by Jer (20150814 09:35:22) 
Under Power and Divisibility Puzzle (in Just Math) Posted on 20150812 (6 Comments) 
 Analytic solution by Jer (20150813 10:38:31) 
 re: computer solution by Jer (20150812 22:29:12) 
Under Simpler probability problem? (in Probability) Posted on 20150811 (14 Comments) 
 re: re. difficulty level by Jer (20150811 23:13:00) 
Under Ending in 5 (in Just Math) Posted on 20150811 (1 Comments) 
 Possible solution by Jer (20150811 11:34:13) 
Under Quadratic and Divisibility Puzzle (in Just Math) Posted on 20150809 (2 Comments) 
 re: a suggestive series / explained by Jer (20150809 22:06:40) 
Under Best guess (in Probability) Posted on 20150730 (3 Comments) 
 re: computer solution by Jer (20150731 09:55:05) 
Under Red, White, and Blue (in Logic) Posted on 20150729 (4 Comments) 
 Yet another approach. by Jer (20150729 18:56:37) 
Under Pythagorean triplet generator (in Numbers) Posted on 20150728 (1 Comments) 
 Solution to a cool trick. by Jer (20150728 10:34:40) 
Under What's in a name? (in Word Problems) Posted on 20150723 (3 Comments) 
 re(2): Alternating answer by Jer (20150723 20:51:02) 
Under Nine trolls (in Just Math) Posted on 20150723 (9 Comments) 
 re(2): Solution.....needs editing by Jer (20150723 20:46:43) 
 Solution by Jer (20150723 10:25:35) 
Under Simultaneous Real Settlement (in Just Math) Posted on 20150720 (2 Comments) 
 Obvious ones by Jer (20150720 14:21:24) 
Under Guessing suit (in Probability) Posted on 20150720 (13 Comments) 
 re: Analysis (spoiler) by Jer (20150729 19:01:37) 
Under Circumcenter, orthocenter and ratio puzzle (in Shapes) Posted on 20150719 (1 Comments) 
 Analytical solution by Jer (20150720 09:35:48) 
Under Side Ratio Resolution (in Shapes) Posted on 20150718 (4 Comments) 
 re(3): Solution by Jer (20150720 21:39:24) 
 re: Solution by Jer (20150720 10:04:08) 
Under Bean coloring (in Probability) Posted on 20150713 (11 Comments) 
 re: Solution by Jer (20150729 19:11:31) 
Under From ab to yz (in Word Problems) Posted on 20150706 (5 Comments) 
 Probable solution. by Jer (20150706 13:32:30) 
Under One 1 to Six 6's (in Probability) Posted on 20150701 (14 Comments) 
 re(2): more results (11 and 12) by Jer (20150705 16:07:34) 
 re: computer aided solution by Jer (20150701 22:17:03) 
Under Real Polynomial Puzzle (in Just Math) Posted on 20150627 (1 Comments) 
 Many, if not all. by Jer (20150627 16:40:37) 
Under Put up or shut up (in Word Problems) Posted on 20150623 (5 Comments) 
 A couple that come to mind by Jer (20150624 20:43:40) 
Under Linear and Quadratic Puzzle (in Just Math) Posted on 20150618 (2 Comments) 
 re: Solution / Generalization by Jer (20150619 07:09:09) 
 Solution by Jer (20150618 12:33:08) 
Under Oh no, not Monty again! (in Probability) Posted on 20150617 (9 Comments) 
 re: Solution by Jer (20150729 19:18:47) 
 Thoughts. No solution. by Jer (20150617 09:21:28) 
Under One triplet out (in Numbers) Posted on 20150616 (3 Comments) 
 Here's one by Jer (20150616 13:27:52) 
Under Expression Quotient Puzzle (in Just Math) Posted on 20150616 (3 Comments) 
 Some, maybe all by Jer (20150616 09:30:04) 
Under On his way to fitness (in Just Math) Posted on 20150615 (10 Comments) 
 re: 2 remarks by Jer (20150615 20:34:18) 
 A geometrical approach by Jer (20150615 13:10:34) 
 Statistical approach by Jer (20150615 12:51:48) 
Under Which integer was removed? (in Just Math) Posted on 20150615 (2 Comments) 
 Solution by Jer (20150615 09:12:18) 
Under Harmonic mean and constant determination puzzle (in Shapes) Posted on 20150613 (2 Comments) 
 Solution by Jer (20150615 12:36:54) 
Under No Unit Cube Dissection (in Shapes) Posted on 20150611 (7 Comments) 
 Closing in? by Jer (20150613 22:09:34) 
 re(3): first observations by Jer (20150613 21:02:11) 
 re: first observations by Jer (20150613 17:34:46) 
Under No direct evaluation (in Numbers) Posted on 20150609 (4 Comments) 
 re(2): Solution by Jer (20150609 11:52:01) 
 Solution by Jer (20150609 08:15:51) 
Under Concurrency and Ratio Product Puzzle (in Shapes) Posted on 20150606 (1 Comments) 
 Answer / no solution by Jer (20150609 12:06:23) 
Under Map coloring (in Shapes) Posted on 20150605 (8 Comments) 
 A further challenge. by Jer (20150606 21:01:25) 
 re(2): Drawing Challenged (spoiler?) by Jer (20150605 10:51:11) 
Under Quadratic and Sextic (in Just Math) Posted on 20150604 (1 Comments) 
 Answer by Jer (20150605 11:08:59) 
Under Rational Floor Query (in Just Math) Posted on 20150603 (1 Comments) 
 Part (A) solution, Part (B) answer w/o solution. by Jer (20150604 10:15:42) 
Under Logical, or not? (in General) Posted on 20150601 (4 Comments) 
 re: solution by Jer (20150601 13:48:35) 
Under Rational or not? (in Just Math) Posted on 20150529 (5 Comments) 
 This issue causes troubles. by Jer (20160611 12:22:47) 
 re: solution by Jer (20150529 12:26:22) 
Under Three Centroids (in Geometry) Posted on 20150528 (2 Comments) 
 Simplified solution & more area relationships by Jer (20150529 09:00:05) 
Under What property? (in Shapes) Posted on 20150528 (4 Comments) 
 re(2): Only? (no spoiler) (now spoiler) by Jer (20150528 13:02:35) 
 Only? (no spoiler) by Jer (20150528 09:51:12) 
Under Angle Ratio Ascertainment (in Shapes) Posted on 20150527 (1 Comments) 
 Solution by Jer (20150527 08:55:59) 
Under Tax Collector (in Games) Posted on 20150526 (6 Comments) 
 Solution by Jer (20150602 09:15:39) 
 Answer / no solution by Jer (20150526 09:51:14) 
 re(3): Thoughts. by Jer (20150526 09:39:58) 
Under Sinusoidal System (in Just Math) Posted on 20150524 (2 Comments) 
 re: Thoughts by Jer (20181226 11:58:55) 
Under Cuboid Concern (in Shapes) Posted on 20150521 (2 Comments) 
 Alternate method, same answer by Jer (20150521 17:07:39) 
Under Back to throne (in Probability) Posted on 20150521 (3 Comments) 
 One way to solution by Jer (20150521 09:40:07) 
Under BOW, WRENCH (in Word Problems) Posted on 20150514 (2 Comments) 
 Oh I get it by Jer (20150514 10:58:31) 
Under 112233....99 scrambled (in Numbers) Posted on 20150513 (2 Comments) 
 Always in the last place you look  spoiler by Jer (20150513 12:14:49) 
Under How far can you go? (in Numbers) Posted on 20150512 (6 Comments) 
 re(4): Go on, indeed. by Jer (20150513 10:02:01) 
 re(2): Go on, indeed. by Jer (20150512 13:25:27) 
 Go on, indeed. by Jer (20150512 09:36:57) 
Under A Quickie, not tricky (in Numbers) Posted on 20150511 (6 Comments) 
 re(4): Solution spoiler.....Now list them ALL! by Jer (20150511 12:48:26) 
 re(2): Solution spoiler.....Now list them ALL! by Jer (20150511 11:54:57) 
 Solution spoiler by Jer (20150511 09:41:43) 
Under Sum Root Sum Settlement (in Just Math) Posted on 20150510 (5 Comments) 
 re(2): No Subject by Jer (20150512 09:05:02) 
 No Subject by Jer (20150511 10:15:26) 
Under Animal Anagram  Not (in Word Problems) Posted on 20150506 (3 Comments) 
 Anatomical Anagram by Jer (20150507 06:49:27) 
Under Printer's glitch (in Just Math) Posted on 20150505 (4 Comments) 
 re: answer by Jer (20150506 10:20:05) 
 Part (i) by Jer (20150505 13:45:48) 
Under My friend (in Cryptography) Posted on 20150505 (2 Comments) 
 Solution by Jer (20150505 08:36:06) 
Under From E to D (in Logic) Posted on 20150428 (4 Comments) 
 E (if an error) and H solutions only by Jer (20150428 13:32:49) 
Under Largest palindrome (in Numbers) Posted on 20150427 (4 Comments) 
 Solution by Jer (20150427 12:05:32) 
Under Divisor Determination (in Just Math) Posted on 20150425 (2 Comments) 
 A start? by Jer (20150425 16:04:04) 
Under Three's a company (in General) Posted on 20150423 (7 Comments) 
 5, 9, 12 by Jer (20150423 09:47:18) 
Under Arithmetic Quadrilateral (in Shapes) Posted on 20150419 (4 Comments) 
 example by Jer (20150420 12:14:45) 
 Part (B) no proof. by Jer (20150420 12:04:03) 
 Part (A) by Jer (20150420 10:55:27) 
Under Acute Ascertainment (in Shapes) Posted on 20150418 (3 Comments) 
 re(2): Solution by Jer (20150419 21:15:20) 
 Solution by Jer (20150418 22:12:46) 
Under 2012 Lamps (in Games) Posted on 20150417 (5 Comments) 
 re(3): Possible solution by Jer (20150418 22:18:40) 
Under A Chinese Scene (in Word Problems) Posted on 20150417 (4 Comments) 
 Many by Jer (20150417 11:00:50) 
Under Some powers decomposed (in Numbers) Posted on 20150416 (5 Comments) 
 re(2): Thoughts from OEIS by Jer (20150417 21:13:39) 
 Thoughts from OEIS by Jer (20150417 08:52:47) 
Under Number Count Conclusion (in Just Math) Posted on 20150415 (4 Comments) 
 Analytics can get you there by Jer (20150416 09:53:17) 
Under So what? (in General) Posted on 20150413 (5 Comments) 
 re: Facilissimus by Jer (20150413 08:59:00) 
Under Deux Power Divisibility (in Algorithms) Posted on 20150412 (3 Comments) 
 re: continuation of Jer's table by Jer (20150412 17:15:52) 
 A sequence and some thoughts. by Jer (20150412 10:39:57) 
Under Bright light (in Science) Posted on 20150409 (9 Comments) 
 I fixed my model. by Jer (20150416 10:23:09) 
 GSP Model disagrees with the previous posts by Jer (20150409 14:19:29) 
Under Tile flipping (in Just Math) Posted on 20150408 (12 Comments) 
 re: N = 5; Hypothesis when N is odd by Jer (20150413 06:51:55) 
 re: Thoughts  a counterexample for you by Jer (20150409 08:51:08) 
Under Roman palindrome (in Numbers) Posted on 20150407 (3 Comments) 
 Depending on what's allowed. by Jer (20150407 08:54:41) 
Under Geometric Rubric (in Just Math) Posted on 20150404 (2 Comments) 
 Something cool I never knew about polynomials (hint) by Jer (20150404 14:52:45) 
Under Reflection Matrix (in Just Math) Posted on 20150401 (3 Comments) 
 re: researched solution by Jer (20150401 21:08:11) 
Under Function Function Function Function Foray (in Just Math) Posted on 20150331 (2 Comments) 
 A good guess / computer help by Jer (20150331 12:50:47) 
Under 278=19 (in Just Math) Posted on 20150331 (2 Comments) 
 Solution by Jer (20150331 11:59:48) 
Under Animal to animal (in Word Problems) Posted on 20150327 (2 Comments) 
 Easy Threes and Fours by Jer (20150327 10:23:46) 
Under Neighboring tickets (in Numbers) Posted on 20150326 (2 Comments) 
 A guess  possible solution by Jer (20150326 14:18:55) 
Under Zero Sum Expression (in Just Math) Posted on 20150325 (2 Comments) 
 algebraic solution by Jer (20150326 08:17:28) 
Under A State of Contradictions (in Word Problems) Posted on 20150324 (2 Comments) 
 Spicy solution by Jer (20150324 08:41:01) 
Under Polynomial problem (in Just Math) Posted on 20150322 (2 Comments) 
 Assuming linear factor by Jer (20150323 14:05:30) 
Under Chord Triangle Constant (in Geometry) Posted on 20150321 (4 Comments) 
 A GSP start by Jer (20150321 20:45:12) 
Under Isosceles Crease (in Shapes) Posted on 20150319 (2 Comments) 
 exact solution by Jer (20150319 14:16:21) 
Under Pentagon Fraction Minimizing (in Just Math) Posted on 20150316 (5 Comments) 
 re: solution by Jer (20150316 16:19:38) 
Under Linear and Quadratic Square (in Just Math) Posted on 20150315 (4 Comments) 
 re: A way not to do it. by Jer (20150316 11:51:33) 
Under A Quickie (in Numbers) Posted on 20150313 (1 Comments) 
 solution by Jer (20150313 08:50:08) 
Under Location, location, location (in Geometry) Posted on 20150312 (8 Comments) 
 re(3): To answer the question... by Jer (20150313 08:44:48) 
Under Root sum equals integer (in Just Math) Posted on 20150310 (7 Comments) 
 solution & playing around by Jer (20150310 12:07:14) 
Under Triangle to Triangle (in General) Posted on 20150307 (1 Comments) 
 Solution by Jer (20150309 14:23:21) 
Under Divisor Count Conclusion (in Just Math) Posted on 20150306 (2 Comments) 
 solution by Jer (20150306 08:46:17) 
Under Minimizing Perimeter (in Shapes) Posted on 20150304 (15 Comments) 
 re(2): A triangle that works, may not be minimum (spoiler) by Jer (20150304 12:32:22) 
 re(3): NO DICE.....not a spoiler by Jer (20150304 12:28:11) 
 A triangle that works, may not be minimum by Jer (20150304 09:47:08) 
 re: NO DICE.....not a spoiler by Jer (20150304 09:15:51) 
Under Phrase a question II (in Numbers) Posted on 20150303 (2 Comments) 
 What is... (solution) by Jer (20150303 09:10:57) 
Under Equilateral fun (in Geometry) Posted on 20150228 (2 Comments) 
 Not the easy way (solution) by Jer (20150228 13:58:00) 
Under Prime and perfect (in Numbers) Posted on 20150227 (3 Comments) 
 re(2): Solution  may not be complete by Jer (20150301 20:16:44) 
 Solution  may not be complete by Jer (20150228 11:26:35) 
Under Academia, defeated, yesterday (in Word Problems) Posted on 20150226 (6 Comments) 
 Bad puns by Jer (20150226 10:00:26) 
Under Next year vs the current year (in Numbers) Posted on 20150225 (5 Comments) 
 re(3): Paper and Pencil solution, part (a) / part (b) by Jer (20150225 11:42:40) 
 re: Paper and Pencil solution, part (a) / part (b) by Jer (20150225 11:04:56) 
Under No other case (in Just Math) Posted on 20150224 (2 Comments) 
 re: The easy half / another third by Jer (20150225 10:43:51) 
 The easy half by Jer (20150224 12:13:27) 
Under Composite prime (in Numbers) Posted on 20150224 (2 Comments) 
 Solution by Jer (20150224 08:29:41) 
Under Bamboo Baffle (in Riddles) Posted on 20150223 (3 Comments) 
 glub glub by Jer (20150223 13:37:14) 
Under Not too much (in Numbers) Posted on 20150220 (8 Comments) 
 re(2): Is this valid? no !  partial spoiler by Jer (20150220 21:19:34) 
 Is this valid? by Jer (20150220 10:07:29) 
Under The final quantity (in Numbers) Posted on 20150218 (4 Comments) 
 Two methods by hand by Jer (20150218 22:56:24) 
Under Approximating radicals (in Numbers) Posted on 20150217 (4 Comments) 
 Clarification by Jer (20150218 21:59:23) 
Under An ancient Egyptian problem (in Just Math) Posted on 20150213 (5 Comments) 
 re: computer solutions by Jer (20150214 11:55:06) 
 Some simple solutions by Jer (20150213 13:36:37) 
Under Bound the product (in Numbers) Posted on 20150213 (4 Comments) 
 re: Possible solution. Correction and second part. by Jer (20150213 12:47:18) 
Under Minding mines. (in Just Math) Posted on 20150207 (1 Comments) 
 Solution by Jer (20150208 15:12:14) 
Under Very very colourful (in General) Posted on 20150206 (2 Comments) 
 #1, 3, 8 by Jer (20150206 14:01:25) 
Under Rooting for Roots (in Just Math) Posted on 20150204 (2 Comments) 
 re: solution by Jer (20150205 09:26:25) 
Under ProSum Numbers (in Numbers) Posted on 20150128 (5 Comments) 
 re: computer solution by Jer (20150128 11:32:19) 
 some sequences by Jer (20150128 11:25:10) 
Under Deux Difference Deduction (in Sequences) Posted on 20150123 (8 Comments) 
 Enough factors? Solution. by Jer (20150123 12:45:52) 
Under Eliot Ness meets Paul ErdĹ‘s (in Numbers) Posted on 20150123 (3 Comments) 
 Solution by Jer (20150123 08:11:40) 
Under What price glory? (in Games) Posted on 20150122 (5 Comments) 
 re: If there isn't an even better strategy... (spoiler?) by Jer (20150122 12:02:31) 
Under Deux Digit Deduction (in Just Math) Posted on 20150121 (2 Comments) 
 powerful solution by Jer (20150121 12:25:04) 
Under Easy as One, Two, Three (in Numbers) Posted on 20150120 (1 Comments) 
 Solution by Jer (20150120 09:13:44) 
Under 4 clues (in Numbers) Posted on 20150119 (3 Comments) 
 Solution by Jer (20150119 10:28:32) 
Under Volume Ratio Validation (in Shapes) Posted on 20150118 (2 Comments) 
 Solution by Jer (20150122 08:28:06) 
Under Squares and Rectangles II (in Just Math) Posted on 20150116 (2 Comments) 
 A quick count. by Jer (20150116 09:03:48) 
Under Square Sum Settlement (in Just Math) Posted on 20150114 (3 Comments) 
 re: computer solution (spoiler) by Jer (20150114 11:26:08) 
Under Sum and Difference (in Just Math) Posted on 20150105 (3 Comments) 
 From a graph by Jer (20150105 09:02:01) 
Under 4d divides 5d (in Just Math) Posted on 20141226 (2 Comments) 
 Possible solution by Jer (20141226 20:41:27) 
Under m & n (in Just Math) Posted on 20141218 (2 Comments) 
 re: computeraided solution by Jer (20141218 13:00:57) 
Under Equation Exercise (in Just Math) Posted on 20141216 (3 Comments) 
 solving as little as possible by Jer (20141216 13:48:49) 
Under Trigo inequality (in Just Math) Posted on 20141211 (11 Comments) 
 re(4): solution. An idea by Jer (20141213 20:25:35) 
Under Year Yearn 2 (in General) Posted on 20141211 (4 Comments) 
 d1 solution by Jer (20141211 13:36:40) 
Under Out of this word (in Word Problems) Posted on 20141208 (9 Comments) 
 re(3): Most of a solution  hint , not a spoiler by Jer (20141208 22:03:24) 
 re: Most of a solution by Jer (20141208 11:56:19) 
Under Triangle Area Trial (in Shapes) Posted on 20141207 (3 Comments) 
 Approximate solution from GSP by Jer (20141208 06:51:09) 
Under Going NorthEast (in Just Math) Posted on 20141205 (4 Comments) 
 re(2): Another way to avoid tedium. by Jer (20141207 20:31:21) 
 Another way to avoid tedium. by Jer (20141206 21:41:37) 
Under Simultaneous Surmise (in Just Math) Posted on 20141129 (3 Comments) 
 re: Finally! by Jer (20141129 22:27:41) 
Under Geometric Sequence Settlement III (in Sequences) Posted on 20141126 (3 Comments) 
 A slightly different approach by Jer (20141128 16:13:21) 
Under A symmetric relation (in Just Math) Posted on 20141119 (5 Comments) 
 Polar solution by Jer (20141119 10:40:05) 
Under Inconsiderable Integer Illation (in Just Math) Posted on 20141116 (10 Comments) 
 re(2): Actual answer  calculator solution by Jer (20141116 22:26:01) 
Under My numbers (in Numbers) Posted on 20141114 (3 Comments) 
 All of the solutions by Jer (20141114 09:02:55) 
Under Deux Digit Determination (in Just Math) Posted on 20141113 (4 Comments) 
 Full expansion, but unproven result by Jer (20141113 14:00:50) 
Under Box Volume Baffle (in Shapes) Posted on 20141105 (5 Comments) 
 Probable solution (is my reasoning sensible?) by Jer (20141105 22:36:58) 
Under RMS Rigor (in Just Math) Posted on 20141104 (4 Comments) 
 Almost full solution by Jer (20141105 13:11:15) 
Under Friendship paradox (in Paradoxes) Posted on 20141031 (4 Comments) 
 re: n = 721,000,000: Intuitively by Jer (20141103 09:30:35) 
Under Angle evaluating (in Geometry) Posted on 20141028 (1 Comments) 
 One inefficient way. by Jer (20141028 13:56:37) 
Under Extending tictactoe (in Just Math) Posted on 20141023 (6 Comments) 
 General Solution by Jer (20141023 10:18:48) 
 6x6x6 solution by Jer (20141023 10:05:28) 
 5x5x5 solution by Jer (20141023 10:00:22) 
Under One by two (in Numbers) Posted on 20141022 (6 Comments) 
 re(3): 19 solutions by Jer (20141022 20:46:38) 
 19 solutions by Jer (20141022 10:38:08) 
Under Switch Settlement (in Logic) Posted on 20141020 (3 Comments) 
 Solution (different from previous) by Jer (20141020 08:48:17) 
Under Distinct Values Validation (in Just Math) Posted on 20141016 (8 Comments) 
 re(2): Simplified, no solution by Jer (20141017 09:47:23) 
 Simplified, no solution by Jer (20141016 10:16:51) 
Under Counting Crossings (in Geometry) Posted on 20141008 (7 Comments) 
 Are the solutions correct? by Jer (20141008 14:29:43) 
Under Winning Ticket Tickle (in Probability) Posted on 20141006 (6 Comments) 
 re: possible solution by Jer (20141006 14:13:49) 
Under Defrosting the Cone (in Calculus) Posted on 20141002 (1 Comments) 
 Most calculations not shown by Jer (20141003 11:29:41) 
Under Square Result Rumination (in Just Math) Posted on 20140928 (6 Comments) 
 re: Technical solutionbut a larger question remains. by Jer (20140928 10:04:46) 
Under Mary, Mary, Quite Orderly (in Just Math) Posted on 20140924 (6 Comments) 
 re: solution by Jer (20140925 06:46:45) 
Under Fill in (in Sequences) Posted on 20140924 (6 Comments) 
 re(2): Not sure why you would do this... (Probable intended solution.) by Jer (20140925 09:50:59) 
 Not sure why you would do this... by Jer (20140924 10:56:48) 
Under Rectangle Color Rigor (in Just Math) Posted on 20140923 (4 Comments) 
 This seems too easy by Jer (20140923 10:10:57) 
Under Max and Min (in Just Math) Posted on 20140922 (3 Comments) 
 Guesses by Jer (20140922 09:15:13) 
Under Interior Angle Aggregate (in Shapes) Posted on 20140916 (2 Comments) 
 alternate solution by Jer (20140916 12:07:39) 
 A solution by Jer (20140916 11:52:06) 
Under Cubic Quandary (in Calculus) Posted on 20140913 (2 Comments) 
 Solution without calculus. by Jer (20140916 10:01:59) 
 Solution by Jer (20140915 14:02:41) 
Under 4 cents (in Shapes) Posted on 20140912 (11 Comments) 
 About this problem. by Jer (20160131 11:03:45) 
Under Convex Hull (in Geometry) Posted on 20140910 (1 Comments) 
 Most of the answer by Jer (20140911 11:56:14) 
Under Angle Analysis (in Shapes) Posted on 20140905 (1 Comments) 
 Solution based on previous by Jer (20140906 00:24:51) 
Under Fibo's quickie (in Logic) Posted on 20140903 (4 Comments) 
 not so quick answer by Jer (20140903 11:57:38) 
Under Decimal Digits (in General) Posted on 20140902 (5 Comments) 
 My thoughts by Jer (20140902 15:44:34) 
Under Segment Section Settlement (in Probability) Posted on 20140828 (3 Comments) 
 This should work by Jer (20140828 12:24:32) 
Under A PowerSum Puzzle (in Numbers) Posted on 20140827 (3 Comments) 
 Playing with sketchpad by Jer (20140904 23:32:27) 
 Close but not quite. by Jer (20140831 01:31:59) 
Under Testy Triplet Treat II (in Just Math) Posted on 20140725 (4 Comments) 
 Solution and generalization by Jer (20140725 10:28:45) 
Under Heptadecagon Hinder (in Shapes) Posted on 20140713 (1 Comments) 
 I suppose by Jer (20140716 00:46:38) 
Under Sum Power Digit Determination (in Just Math) Posted on 20140712 (4 Comments) 
 Shortcut solution by Jer (20140712 23:51:27) 
Under Union of squares (in Shapes) Posted on 20140709 (10 Comments) 
 re: set of numbers by Jer (20140712 23:55:14) 
 Some odds are possible by Jer (20140709 13:30:53) 
Under Two Oblate Spheroids (in Shapes) Posted on 20140704 (1 Comments) 
 Approximate solution by Jer (20140707 00:28:57) 
Under Arctan Appraisal (in Just Math) Posted on 20140701 (2 Comments) 
 No Subject by Jer (20140701 11:17:51) 
Under F. to P. generator (in Numbers) Posted on 20140625 (4 Comments) 
 Isn't this more general and simple? by Jer (20140626 11:07:00) 
Under Minimum Value Muse (in Just Math) Posted on 20140620 (3 Comments) 
 re: computer solution by Jer (20140620 13:45:13) 
 Possible solution with thought process by Jer (20140620 11:48:18) 
Under A tall tower (in Geometry) Posted on 20140618 (6 Comments) 
 re: Question by Jer (20140619 01:21:00) 
Under Validity Vindication (in Shapes) Posted on 20140618 (2 Comments) 
 solution in three and a half folds. by Jer (20140618 15:02:57) 
Under Cardboard Conclusion (in Shapes) Posted on 20140608 (3 Comments) 
 Prettier solution by Jer (20140609 10:56:11) 
Under Sum Settlement (in Just Math) Posted on 20140603 (4 Comments) 
 Possible solution by Jer (20140603 13:42:42) 
Under Fuel Feat (in Just Math) Posted on 20140603 (4 Comments) 
 re(2): Solution by Jer (20140603 12:46:38) 
Under 3 more hats (in General) Posted on 20140602 (1 Comments) 
 Solution spoiler by Jer (20140602 16:04:37) 
Under Bricks and Box Baffle II (in Shapes) Posted on 20140529 (1 Comments) 
 solution and minimum by Jer (20140529 15:18:16) 
Under Representation Initiation (in Just Math) Posted on 20140526 (3 Comments) 
 Simpler computer solution by Jer (20140527 12:45:26) 
Under Harmonic Sequence Settlement (in Just Math) Posted on 20140522 (3 Comments) 
 solution with no explanation by Jer (20140522 16:25:10) 
Under Array Assignment (in Just Math) Posted on 20140520 (2 Comments) 
 Ignoring (ii) by Jer (20140520 13:36:50) 
Under Guessing Game (in Numbers) Posted on 20140516 (18 Comments) 
 Ideas for part (a) by Jer (20140516 16:04:57) 
Under The highest prime (in Numbers) Posted on 20140516 (8 Comments) 
 Possible solution by Jer (20140516 10:31:41) 
Under Attack Assay (in Probability) Posted on 20140514 (3 Comments) 
 queens solution by Jer (20140514 13:19:31) 
Under 5 unknown digits (in Numbers) Posted on 20140513 (5 Comments) 
 an interesting result by Jer (20140513 15:51:56) 
 Solution by Jer (20140513 13:41:40) 
Under Repdigit Rigor (in Just Math) Posted on 20140511 (2 Comments) 
 Solution by Jer (20140512 12:47:31) 
Under The Ten Statements II (in Logic) Posted on 20140508 (7 Comments) 
 re(3): Solution by Jer (20140509 00:34:13) 
 re: Solution by Jer (20140508 23:31:24) 
Under Baby Blue (in Probability) Posted on 20140508 (11 Comments) 
 Careful reading and further thoughts by Jer (20140508 12:46:47) 
Under Powerful Divisor (in Just Math) Posted on 20140501 (8 Comments) 
 re(2): solution by Jer (20140502 12:39:33) 
 re: some examples by Jer (20140501 16:47:40) 
 solution by Jer (20140501 16:38:40) 
Under Entertain Every Value? (in Just Math) Posted on 20140429 (2 Comments) 
 proof (acceptable?) by Jer (20140429 14:10:04) 
Under Egg Exertion (in Just Math) Posted on 20140428 (1 Comments) 
 solution by Jer (20140428 13:05:56) 
Under Cinq Carve (in Shapes) Posted on 20140425 (7 Comments) 
 New, simpler solution. by Jer (20140427 01:21:40) 
 re(4): a solution  clarifying by Jer (20140427 01:00:39) 
 re(2): a solution by Jer (20140426 18:26:00) 
 a solution by Jer (20140426 11:28:00) 
Under Half of 4X4 (in Numbers) Posted on 20140424 (5 Comments) 
 re: Spoiler by Jer (20140426 18:44:45) 
 Possible solution possible spoiler by Jer (20140424 21:50:23) 
Under 5 Digit Number III (in Just Math) Posted on 20140422 (3 Comments) 
 re: Proof  shortened by Jer (20140424 01:32:35) 
Under Neighbors (in Numbers) Posted on 20140418 (8 Comments) 
 re(3): computer solution by Jer (20140418 23:09:25) 
 re: computer solution by Jer (20140418 14:08:50) 
 a bit of cheating (spoiler) by Jer (20140418 12:58:37) 
Under Cubic Sequence? (in Sequences) Posted on 20140416 (2 Comments) 
 Easy to answer, proof not so much. (solution) by Jer (20140417 10:55:34) 
Under Colorful hats (in Logic) Posted on 20140416 (6 Comments) 
 obvious answer if possible by Jer (20140416 10:26:41) 
Under PseudoFIBO (in Sequences) Posted on 20140414 (5 Comments) 
 'generated' by Jer (20140415 00:06:58) 
Under What digit? (in Numbers) Posted on 20140408 (1 Comments) 
 When you see it... (spoiler) by Jer (20140408 10:44:32) 
Under Fold Ratio (in Shapes) Posted on 20140405 (2 Comments) 
 I can almost do it in my head. by Jer (20140407 00:27:59) 
Under Directly from Lucas (in Sequences) Posted on 20140404 (1 Comments) 
 Show, yes. Prove, no. by Jer (20140407 12:46:52) 
Under Reverse Rigor (in Just Math) Posted on 20140404 (2 Comments) 
 Interesting result solution by Jer (20140404 13:10:20) 
Under Intriguing Integral Illation II (in Calculus) Posted on 20140403 (2 Comments) 
 Ummm... by Jer (20140404 22:02:57) 
Under Fold Judgement II (in Shapes) Posted on 20140401 (6 Comments) 
 Full solution by Jer (20140401 14:51:31) 
Under Integers only (in Sequences) Posted on 20140331 (7 Comments) 
 re(3): Some questions / Possible solution(s) by Jer (20140331 20:29:02) 
 re: Some questions / Possible solution(s) by Jer (20140331 14:56:35) 
Under 2 to 1 Bisector (in Geometry) Posted on 20140330 (2 Comments) 
 A track. (right track?) by Jer (20140331 12:56:05) 
Under Divisible by 27? (in Just Math) Posted on 20140329 (1 Comments) 
 Why 27? Solution. by Jer (20140329 15:27:39) 
Under Words count (in Numbers) Posted on 20140325 (8 Comments) 
 re(3): Solution by Jer (20140326 09:21:08) 
 re: Solution by Jer (20140325 15:00:05) 
 Solution by Jer (20140325 13:09:33) 
Under How high? (in Numbers) Posted on 20140325 (4 Comments) 
 Recursive Proof by Jer (20140325 12:03:38) 
Under Simultaneous Settlement IV (in Just Math) Posted on 20140322 (2 Comments) 
 Solution. by Jer (20140322 23:48:51) 
Under Solution or solutions (in Sequences) Posted on 20140320 (6 Comments) 
 re: computer evaluation by Jer (20140320 21:44:13) 
 Part 1 by Jer (20140320 14:51:12) 
Under Summing the factorials (in Numbers) Posted on 20140315 (3 Comments) 
 re: computer solution by Jer (20140315 22:34:56) 
Under A permuted multiplication (in Numbers) Posted on 20140311 (9 Comments) 
 re(2): Can it be done? by Jer (20140312 07:51:37) 
 re: Yes it can. by Jer (20140311 14:41:09) 
 Can it be done? by Jer (20140311 12:21:11) 
Under Inradii Ratio (in Geometry) Posted on 20140308 (1 Comments) 
 Analytic Solution by Jer (20140310 23:45:18) 
Under Equilateral Crease II (in Shapes) Posted on 20140305 (3 Comments) 
 Part (ii) by Jer (20140306 15:34:49) 
Under A partial deck (in Numbers) Posted on 20140305 (3 Comments) 
 re(2): Solution ....... att: Jer by Jer (20140306 11:19:56) 
 Solution by Jer (20140305 10:26:11) 
Under Formula Formulation (in Just Math) Posted on 20140303 (4 Comments) 
 first findings by Jer (20140303 16:26:12) 
Under Switching Teams (in Probability) Posted on 20140228 (8 Comments) 
 Clarifying questions by Jer (20140228 12:58:08) 
 To Charlie. by Jer (20140228 12:54:46) 
Under sum Up (in Numbers) Posted on 20140226 (5 Comments) 
 re: Method for solution... by Jer (20140227 00:37:04) 
Under Bullseye II (in Logic) Posted on 20140225 (3 Comments) 
 Solution by Jer (20140225 13:55:35) 
Under All Odds (in Numbers) Posted on 20140224 (2 Comments) 
 Possible solution by Jer (20140224 10:49:32) 
Under PentaQuadratic (in Just Math) Posted on 20140223 (5 Comments) 
 re(2): A long way =0.0024990669i ?? by Jer (20140306 11:25:22) 
 A long way by Jer (20140223 21:35:56) 
Under Overlapping Triangles (in Geometry) Posted on 20140222 (1 Comments) 
 Sketchpad by Jer (20140222 11:50:18) 
Under Naturally Geometric (in Just Math) Posted on 20140221 (1 Comments) 
 A solution by Jer (20140221 23:17:21) 
Under Mean = median (in Just Math) Posted on 20140220 (4 Comments) 
 re: solution by Jer (20140221 01:03:35) 
Under Get a good look (in Calculus) Posted on 20140218 (5 Comments) 
 re: Interesting observation by Jer (20140219 00:39:47) 
Under Six sets (in Numbers) Posted on 20140217 (7 Comments) 
 Ignoring distinct p&p but it has an error by Jer (20140218 00:11:36) 
Under Equal areas (in Geometry) Posted on 20140215 (1 Comments) 
 Solution by Jer (20140216 20:04:20) 
Under Largest Overlapped Area (in Shapes) Posted on 20140211 (3 Comments) 
 More thorough answer by Jer (20140212 17:03:47) 
 Hastily sketched answer by Jer (20140212 08:44:40) 
Under Remove last three to get cube root (in Numbers) Posted on 20140211 (3 Comments) 
 Solution by Jer (20140211 10:43:09) 
Under Cards In A Circle (in General) Posted on 20140209 (1 Comments) 
 My reckoning by Jer (20140211 00:51:23) 
Under Reciprocal composition is reciprocal. (in Just Math) Posted on 20140208 (4 Comments) 
 re: Family Plan (spoiler?) by Jer (20140208 13:19:40) 
Under 3 after 4 (in Sequences) Posted on 20140204 (1 Comments) 
 Hints? by Jer (20140204 13:31:57) 
Under My crazy die (in Probability) Posted on 20140203 (3 Comments) 
 a and c by hand by Jer (20140204 13:09:46) 
Under A Tetrahedron (in General) Posted on 20140130 (4 Comments) 
 re(3): Multiple ways (spoiler) by Jer (20140130 15:54:33) 
 re: Multiple ways (spoiler) by Jer (20140130 11:03:28) 
Under N & n (in Just Math) Posted on 20140127 (7 Comments) 
 re(2): Looking at my wall by Jer (20140127 13:41:59) 
 Excel solutions by Jer (20140127 13:39:16) 
 Looking at my wall by Jer (20140127 12:42:36) 
Under Geography? Spelling? Logic? (in Tricks) Posted on 20140124 (4 Comments) 
 re(2): question of identity by Jer (20140124 23:28:18) 
Under Maximizing Matches Model (in Numbers) Posted on 20140122 (16 Comments) 
 My initial suggestions by Jer (20140122 14:11:12) 
Under Advanced alphametics (in Numbers) Posted on 20140117 (8 Comments) 
 Other thoughts by Jer (20140117 15:54:35) 
Under Some Squares Sum Year (in Just Math) Posted on 20140116 (2 Comments) 
 I can program by Jer (20140116 15:38:29) 
Under Summing up the dividers' dividers (in Numbers) Posted on 20140115 (1 Comments) 
 Some sum (spoiler, incomplete proof) by Jer (20140115 14:07:06) 
Under Pentagon in a semicircle (in Geometry) Posted on 20140111 (1 Comments) 
 Solution by Jer (20140112 01:33:18) 
Under Unusual Crossword Puzzle (in Word Problems) Posted on 20140109 (5 Comments) 
 Observations and a question for all. by Jer (20140109 13:42:05) 
Under A missing symbol (in Word Problems) Posted on 20140108 (2 Comments) 
 Some solutions by Jer (20140108 11:32:52) 
Under Supreme Subset (in Just Math) Posted on 20140102 (6 Comments) 
 Blindly crossing possible solution by Jer (20140102 15:04:41) 
Under all squares (in Geometry) Posted on 20140101 (1 Comments) 
 Proof by Jer (20140102 14:37:05) 
Under Trigonometric product (in Numbers) Posted on 20131229 (4 Comments) 
 A proof. by Jer (20131229 19:10:25) 
Under Going Maximum With Harmonic (in Just Math) Posted on 20131228 (2 Comments) 
 By hand by Jer (20131228 23:54:34) 
Under Lucas squares (in Just Math) Posted on 20131215 (6 Comments) 
 re(4): Long solution. by Jer (20131217 11:06:49) 
 re(2): Long solution. by Jer (20131216 15:46:27) 
 Long solution. by Jer (20131216 09:33:17) 
Under Six Letter Strikeout (in Tricks) Posted on 20131210 (6 Comments) 
 Solution with explanation by Jer (20131211 11:15:49) 
Under Two Rectangles (in Geometry) Posted on 20131209 (2 Comments) 
 Some solutions by Jer (20131209 11:20:33) 
Under Only One, One, One II (in Just Math) Posted on 20131208 (5 Comments) 
 re: Counterexample? by Jer (20131210 18:22:03) 
 Counterexample? by Jer (20131209 13:20:52) 
Under Amazing (in Geometry) Posted on 20131207 (1 Comments) 
 A specific case by Jer (20131210 16:19:51) 
Under 1998 (in Numbers) Posted on 20131205 (5 Comments) 
 Some ways to do 2 by Jer (20131205 15:55:41) 
 Just the first by Jer (20131205 15:15:47) 
Under Consecutive Base Baffle (in Just Math) Posted on 20131204 (4 Comments) 
 re: computer solution by Jer (20131204 18:27:49) 
Under Square in a Pentagon (in Geometry) Posted on 20131201 (4 Comments) 
 re: More likely to be correct solution. by Jer (20131203 00:44:35) 
 More likely to be correct solution. by Jer (20131202 16:15:39) 
 Possible solution by Jer (20131202 15:58:05) 
Under Minimize Angle (in Calculus) Posted on 20131130 (1 Comments) 
 Direct calculus approach by Jer (20131130 14:51:24) 
Under Joker Possession (in Logic) Posted on 20131127 (2 Comments) 
 Three of a kind (Solution) by Jer (20131127 10:48:51) 
Under FaceUp Card Array (in Logic) Posted on 20131120 (1 Comments) 
 Solution by homomorphism by Jer (20131120 14:02:18) 
Under Testing Three Students (in Just Math) Posted on 20131120 (2 Comments) 
 Solution with reasonable assumptions by Jer (20131120 12:11:51) 
Under Michelangelo? (in Shapes) Posted on 20131118 (2 Comments) 
 I spy by Jer (20131119 09:14:38) 
Under A Square, a Rectangle and a Triangle (in Geometry) Posted on 20131117 (3 Comments) 
 Just the answers, no derivation. by Jer (20131118 15:50:43) 
Under Define winning strategy (in Games) Posted on 20131114 (6 Comments) 
 It's complicated by Jer (20131115 16:09:10) 
 How to win. by Jer (20131115 09:08:43) 
Under Collinear and Equal Angles (in Geometry) Posted on 20131109 (5 Comments) 
 Specific case. Almost full solution by Jer (20131112 09:53:12) 
Under Dart Discharge (in Logic) Posted on 20131107 (2 Comments) 
 Logical solution. by Jer (20131107 15:32:49) 
Under Four Digits (in Numbers) Posted on 20131105 (4 Comments) 
 re(2): computer solution  KUDOS by Jer (20131105 15:47:41) 
Under Quadratic Quandary (in Just Math) Posted on 20131104 (6 Comments) 
 re: approximate  exact by Jer (20131104 15:49:37) 
 approximate by Jer (20131104 15:43:48) 
Under Two ways (in Just Math) Posted on 20131031 (2 Comments) 
 Solution by Jer (20131101 08:18:40) 
Under End Breadth (in Science) Posted on 20131029 (1 Comments) 
 form vs function by Jer (20131029 14:52:14) 
Under Fortyfive Product (in Just Math) Posted on 20131028 (2 Comments) 
 Solution by Jer (20131028 15:05:15) 
Under In and Out (in Geometry) Posted on 20131024 (2 Comments) 
 Two more complicated proofs. by Jer (20131025 09:10:13) 
 Proof by Jer (20131024 14:19:49) 
Under Sum of Cubes (in Numbers) Posted on 20131023 (5 Comments) 
 re: No Subject by Jer (20131026 00:10:59) 
Under Knaves! 2 (in Liars and Knights) Posted on 20131022 (1 Comments) 
 Easy but interesting solution. by Jer (20131022 13:49:12) 
Under Five by Five (in Numbers) Posted on 20131021 (2 Comments) 
 re: modular solution by Jer (20131022 13:54:30) 
Under Just prove it (in Just Math) Posted on 20131020 (4 Comments) 
 Musing on possible lines of attack by Jer (20131023 08:55:08) 
Under DoDeCaGon (in Shapes) Posted on 20131018 (4 Comments) 
 re: No Subject by Jer (20131018 10:56:29) 
Under No multiplication allowed (in Numbers) Posted on 20131017 (8 Comments) 
 Not the way you intended. by Jer (20131017 15:48:58) 
Under Trigo computation (in Numbers) Posted on 20131011 (1 Comments) 
 Not exactly D1 solution by Jer (20131011 16:49:43) 
Under Quintic Expression (in Just Math) Posted on 20131009 (8 Comments) 
 More evidence. by Jer (20131010 11:44:04) 
 Easy way out by Jer (20131009 11:39:22) 
Under Restore from scratches (in Numbers) Posted on 20131008 (2 Comments) 
 In retrospect  spoiler by Jer (20131008 13:57:09) 
Under Powering (in Just Math) Posted on 20131005 (5 Comments) 
 re: this does it by Jer (20131008 09:45:05) 
 re: possible solution by Jer (20131007 09:59:24) 
Under Feisty Fiftysix (in Just Math) Posted on 20131004 (5 Comments) 
 By hand method by Jer (20131004 16:11:41) 
Under Non existing altitudes (in Geometry) Posted on 20131003 (4 Comments) 
 extension: Altitude inequality. by Jer (20131004 09:13:46) 
 My (slightly different) way by Jer (20131004 09:07:31) 
Under Listing cubes (in Numbers) Posted on 20131001 (3 Comments) 
 A start by Jer (20131001 14:15:42) 
Under Warm/Cool Number Guessing (in Numbers) Posted on 20130930 (6 Comments) 
 re: How does the game end? by Jer (20131002 13:09:12) 
 re: A limit by Jer (20131001 15:55:08) 
Under Rhomboctagon (in Geometry) Posted on 20130928 (1 Comments) 
 Solutions by Jer (20130928 15:44:39) 
Under Shared Vertex (in Geometry) Posted on 20130925 (1 Comments) 
 Coordinatized Solution by Jer (20130927 10:16:15) 
Under Four Cards (in Logic) Posted on 20130920 (3 Comments) 
 Solution by Jer (20130920 10:15:33) 
Under Big areas (in Numbers) Posted on 20130917 (16 Comments) 
 re: att: Charlie by Jer (20130918 11:31:48) 
Under Nominal Expression Sum (in Just Math) Posted on 20130917 (4 Comments) 
 Full solution by Jer (20130917 10:21:15) 
Under Subscript Substitution (in Just Math) Posted on 20130916 (1 Comments) 
 Spoiler and commentary by Jer (20130916 13:59:00) 
Under Score Degree Deduction (in Just Math) Posted on 20130914 (1 Comments) 
 No Subject by Jer (20130914 13:14:44) 
Under Mysterious Sequence (in Sequences) Posted on 20130911 (3 Comments) 
 Very strong hints by Jer (20130911 12:28:20) 
Under Different Routes (in Logic) Posted on 20130909 (2 Comments) 
 Simplified solution by Jer (20130909 14:12:50) 
Under Sum of Chords (in Geometry) Posted on 20130907 (1 Comments) 
 Solution by Jer (20130907 13:30:53) 
Under Two top targets (in Numbers) Posted on 20130906 (2 Comments) 
 Solution by Jer (20130906 10:45:10) 
Under Expression Ratio (in Just Math) Posted on 20130903 (4 Comments) 
 re: Method Finished by Jer (20130904 13:57:20) 
 Method by Jer (20130904 13:28:20) 
Under NegaFibo series (in Numbers) Posted on 20130829 (2 Comments) 
 Solution by Jer (20130829 13:57:50) 
Under Dodecagonal Diagonals (in Shapes) Posted on 20130822 (1 Comments) 
 Solution by Jer (20130823 20:17:56) 
Under Tread Ware (in General) Posted on 20130820 (4 Comments) 
 Max dist, no plan. by Jer (20130820 11:19:35) 
Under Rectangle to Square (in Geometry) Posted on 20130813 (9 Comments) 
 re(2): Full solution by Jer (20130815 18:05:40) 
 Full solution by Jer (20130815 13:12:13) 
 One way by Jer (20130813 14:47:52) 
Under Squarely Sorted (in Numbers) Posted on 20130727 (4 Comments) 
 re: answer with proof / neater & corrected by Jer (20130727 14:14:38) 
Under Prince Rupert's Tetrahedron (in Shapes) Posted on 20130721 (2 Comments) 
 2d solution by Jer (20130727 14:36:39) 
Under Simple Thinking (in Numbers) Posted on 20130709 (2 Comments) 
 Simple answer by Jer (20130709 11:06:05) 
Under Parallelogram Requirement (in Geometry) Posted on 20130707 (1 Comments) 
 Proof. No picture. by Jer (20130709 11:00:04) 
Under Concyclic Points of Tangency (in Geometry) Posted on 20130702 (2 Comments) 
 Solution by Jer (20130704 01:27:18) 
Under Digital Factorial (in Numbers) Posted on 20130701 (2 Comments) 
 One way to reach a solution. by Jer (20130701 11:20:38) 
Under My uncle's habits (in Probability) Posted on 20130628 (4 Comments) 
 First two days manually by Jer (20130629 15:03:34) 
Under Words, words, numbers (in Word Problems) Posted on 20130621 (2 Comments) 
 re: computer findings by Jer (20130623 00:47:15) 
Under Three Bricklayers (in Just Math) Posted on 20130621 (4 Comments) 
 re: answer  spoiler  better answer by Jer (20130621 12:38:50) 
Under Shiny Numbers (in Just Math) Posted on 20130620 (6 Comments) 
 First steps to proof by Jer (20130621 10:05:40) 
Under Any others? (in Numbers) Posted on 20130618 (9 Comments) 
 re(4): Solution  flaw? by Jer (20130619 23:20:07) 
 re: Solution  flaw? by Jer (20130618 18:15:33) 
 Solution by Jer (20130618 12:11:52) 
Under Four Equal Triangles (in Geometry) Posted on 20130616 (3 Comments) 
 re(2): Solution by Jer (20130617 15:13:56) 
 Solution by Jer (20130616 22:34:58) 
Under Divisibility of N (in Numbers) Posted on 20130615 (4 Comments) 
 re: No Subject by Jer (20130615 19:14:50) 
Under Lion and Tamer (in Logic) Posted on 20130610 (7 Comments) 
 Outsmarting the tamer by Jer (20130611 14:22:02) 
Under Adjacent Square Sum II (in Just Math) Posted on 20130610 (5 Comments) 
 More generalizations of the algebra by Jer (20130610 15:28:26) 
 The algebra by Jer (20130610 14:15:21) 
Under Divisibility and Digit Sum (in Just Math) Posted on 20130607 (8 Comments) 
 re(2): Solution by Jer (20130607 13:39:37) 
 Solution by Jer (20130607 10:25:26) 
Under B & G (in Logic) Posted on 20130603 (1 Comments) 
 Solution by Jer (20130603 12:52:49) 
Under Mean Distance Two Points (in Shapes) Posted on 20130601 (8 Comments) 
 re(3): Part 2 in two different ways. by Jer (20130602 11:59:58) 
 Part 2 in two different ways. by Jer (20130602 01:10:39) 
Under Strings of Nines (in Numbers) Posted on 20130529 (2 Comments) 
 re: a d1 answer (+background) by Jer (20130529 12:37:31) 
Under High Scorer (in General) Posted on 20130521 (11 Comments) 
 Diagonal line. by Jer (20130522 12:41:25) 
 Solution by Jer (20130521 15:41:58) 
Under Simple expression but difficult answer (in Just Math) Posted on 20130521 (2 Comments) 
 Long algebra solution by Jer (20130521 14:11:23) 
Under Adjacent Square Sum (in Just Math) Posted on 20130520 (3 Comments) 
 Easy way by Jer (20130520 12:29:32) 
Under Divisibility of 29 (in Numbers) Posted on 20130515 (4 Comments) 
 A curious and interesting number. by Jer (20130521 15:53:26) 
 Rest of solution by Jer (20130515 12:40:39) 
 Solutions I can find (partial solution) by Jer (20130515 12:25:00) 
Under Distance to Diagonal (in Geometry) Posted on 20130514 (6 Comments) 
 re: Typo in problem statement by Jer (20130516 00:38:14) 
 re: Simple Trigonometry (spoiler) by Jer (20130514 16:01:20) 
Under Diophantine Equation (in Just Math) Posted on 20130514 (1 Comments) 
 This should work by Jer (20130514 12:45:34) 
Under Lovely Fibonacci (in Just Math) Posted on 20130511 (2 Comments) 
 Counterexamples by Jer (20130513 13:54:05) 
Under Four Reals (in Numbers) Posted on 20130510 (1 Comments) 
 Easy way by Jer (20130510 12:05:59) 
Under Triangle from Perimeter (in Geometry) Posted on 20130504 (3 Comments) 
 Didn't solve fully but interesting result. by Jer (20130509 13:10:44) 
Under Colorful Win (in Games) Posted on 20130502 (4 Comments) 
 Another try by Jer (20130503 11:21:21) 
 Movecounter move by Jer (20130502 13:52:11) 
Under Generalize (in Numbers) Posted on 20130501 (5 Comments) 
 Can you prove it? by Jer (20130502 09:22:50) 
Under Three in, one out (in Just Math) Posted on 20130429 (5 Comments) 
 I've done something wrong. by Jer (20130429 14:04:46) 
Under Fifthing the quart (in Just Math) Posted on 20130428 (2 Comments) 
 Some (all?) by Jer (20130501 15:00:18) 
Under Dark Divisibility (in Just Math) Posted on 20130427 (21 Comments) 
 re(2): Infinite examples, no proof yet. by Jer (20130429 12:49:14) 
 Infinite examples, no proof yet. by Jer (20130428 12:41:10) 
Under Equaliteral Triangle Division (in Shapes) Posted on 20130425 (5 Comments) 
 re: I can do this! (spoiler) by Jer (20130429 12:55:44) 
Under Winning Chance (in Probability) Posted on 20130424 (3 Comments) 
 Solution by Jer (20130424 12:17:02) 
Under Circular Billiards Table (in Geometry) Posted on 20130423 (6 Comments) 
 re(2): Playing with Geometers' Sketchpad  a method by Jer (20130424 12:49:34) 
Under 2012 sum Digit (in Just Math) Posted on 20130423 (4 Comments) 
 re: Grade inflation by Jer (20130423 13:32:31) 
Under Nonarithmetic Triplets (in General) Posted on 20130408 (9 Comments) 
 re(3): Counting Up by Jer (20130409 00:46:52) 
 re: Counting Up by Jer (20130408 16:01:02) 
Under Area of hexagon... (in Geometry) Posted on 20130406 (1 Comments) 
 A start. by Jer (20130409 15:29:03) 
Under Neat Network II (in General) Posted on 20130405 (4 Comments) 
 A good browse. by Jer (20130405 22:10:41) 
Under Mission impossible (in Just Math) Posted on 20130403 (5 Comments) 
 re(2): Not achieved (spoiler)......hinting by Jer (20130403 13:23:24) 
 Not achieved (spoiler) by Jer (20130403 11:32:42) 
Under Finding Average (in Logic) Posted on 20130401 (9 Comments) 
 re(2): D1 says ultimate simplicity. by Jer (20130402 11:14:59) 
 One solution (and a simple variation) by Jer (20130401 11:22:19) 
Under Pentagon Ratio (in Shapes) Posted on 20130330 (2 Comments) 
 Solution. by Jer (20130401 13:06:07) 
Under Mileage Muse (in Numbers) Posted on 20130326 (7 Comments) 
 re(2): Part 1 with no reset by Jer (20130327 08:03:16) 
 A solution for 2 (button pressing) by Jer (20130326 14:08:40) 
 Part 1 with no reset by Jer (20130326 12:49:55) 
 re: Part 1 only by Jer (20130326 12:37:12) 
Under Conga Primes (in Numbers) Posted on 20130323 (11 Comments) 
 Are there solutions? by Jer (20130325 22:08:49) 
Under So many ways.... (in Numbers) Posted on 20130321 (3 Comments) 
 Some short answers by Jer (20130321 14:55:59) 
Under Equal Segments (in Geometry) Posted on 20130320 (2 Comments) 
 Solution by Jer (20130320 22:18:31) 
Under Inequality challenged (in Just Math) Posted on 20130319 (1 Comments) 
 I think I got it. by Jer (20130320 12:54:06) 
Under Four Coin Theorem (in Shapes) Posted on 20130317 (2 Comments) 
 Almost there by Jer (20130318 12:32:26) 
Under Homophones Misrepresented (in Word Problems) Posted on 20130306 (3 Comments) 
 No Subject by Jer (20130307 09:19:46) 
Under Ceiling and Floor Formulation (in Algorithms) Posted on 20130304 (6 Comments) 
 re(2): Solution? by Jer (20130304 23:12:21) 
 Solution? by Jer (20130304 14:46:40) 
Under Math spelling (in Word Problems) Posted on 20130304 (9 Comments) 
 re: Quick guess and some other ideas. by Jer (20130304 12:21:04) 
Under Intriguing Integral Illation (in Calculus) Posted on 20130302 (6 Comments) 
 exact solution another way by Jer (20130303 23:10:34) 
 Partial answer  solution later by Jer (20130303 02:28:51) 
Under Quarting the cube (in Just Math) Posted on 20130228 (6 Comments) 
 Solution  no cube spotted by Jer (20130301 09:22:59) 
Under Geometric Generalization (in Probability) Posted on 20130228 (6 Comments) 
 Corrected solution by Jer (20130228 11:30:27) 
 Solution and most of bonus by Jer (20130228 10:54:38) 
Under Touching polygons (in Shapes) Posted on 20130227 (5 Comments) 
 re: Triangular reply (partial spoiler by Jer (20130228 11:45:25) 
Under Liar Lock (in Liars and Knights) Posted on 20130226 (5 Comments) 
 Unorthodox Solution by Jer (20130226 12:28:12) 
Under Magical Magician (in Numbers) Posted on 20130223 (6 Comments) 
 re(2): Simplest w r o n g...answer by Jer (20130223 16:41:21) 
 Simplest answer by Jer (20130223 13:51:54) 
Under Point to 2013 (2) (in Just Math) Posted on 20130222 (2 Comments) 
 Outline of analytic solution by Jer (20130223 17:06:46) 
Under Reasonable Root ? (in Just Math) Posted on 20130217 (2 Comments) 
 Seems to me... by Jer (20130217 19:19:06) 
Under Composite Contemplation (in Just Math) Posted on 20130216 (3 Comments) 
 re: spoiler by Jer (20130217 22:13:01) 
Under Triangle Perimeters (in Shapes) Posted on 20130213 (6 Comments) 
 Poor wording by Jer (20130214 09:10:56) 
 re: Resist by Jer (20130213 23:14:04) 
Under Fifteen Frolic (in Games) Posted on 20130212 (2 Comments) 
 Mimimum moves (computer aided) by Jer (20130215 11:42:51) 
 First part by Jer (20130215 11:19:22) 
Under Cans in a cooler (in Shapes) Posted on 20130211 (3 Comments) 
 An interactive Wolfram Demonstration by Jer (20160804 22:10:34) 
 A picture by Jer (20130213 13:01:31) 
Under Consecutive Contemplation II (in Sequences) Posted on 20130210 (2 Comments) 
 An example by Jer (20130211 14:58:35) 
 A guess by Jer (20130211 14:49:11) 
Under Commemorations (in Weights and Scales) Posted on 20130206 (7 Comments) 
 re: A misread? by Jer (20130206 23:04:42) 
Under A false claim (in Numbers) Posted on 20130205 (2 Comments) 
 Interesting by Jer (20130206 12:33:29) 
Under Midpoint problem (in Geometry) Posted on 20130203 (2 Comments) 
 re: Some thoughts / tediousness by Jer (20130204 13:48:42) 
Under Geometric Parabola (in Geometry) Posted on 20130202 (6 Comments) 
 re(4): A note about the problem. by Jer (20130204 16:25:40) 
 re(2): A note about the problem. by Jer (20130203 19:40:35) 
 A note about the problem. by Jer (20130203 01:17:48) 
 Calculus solution by Jer (20130203 01:12:43) 
Under Arrangements count (in Just Math) Posted on 20130131 (2 Comments) 
 Essentially by Jer (20130131 16:45:38) 
Under Cubing the square (in Just Math) Posted on 20130130 (8 Comments) 
 found y, got bonus by Jer (20130130 14:51:54) 
 x, not y but some thoughts by Jer (20130130 14:33:57) 
Under Planetary Perception (in Word Problems) Posted on 20130130 (14 Comments) 
 Last one. by Jer (20130130 15:28:02) 
Under Group Endeavor (in General) Posted on 20130129 (8 Comments) 
 Deductions and a careful reading. by Jer (20130129 15:12:40) 
Under The 73rd digit (in Numbers) Posted on 20130129 (3 Comments) 
 Solution with D1 explanation by Jer (20130129 12:22:18) 
Under Greetings from P (in Sequences) Posted on 20130124 (5 Comments) 
 re(2): P is for what? by Jer (20130125 09:18:28) 
 P is for what? by Jer (20130124 16:52:10) 
Under Penny Drop (in Science) Posted on 20130117 (6 Comments) 
 Eureka! by Jer (20130117 16:37:32) 
Under A chain of odds (in Numbers) Posted on 20130111 (2 Comments) 
 Interesting cube by Jer (20130111 13:58:41) 
Under Point to 2013 (in Just Math) Posted on 20130109 (7 Comments) 
 re(2): With computer by Jer (20130109 13:40:49) 
Under Square from four points (in Geometry) Posted on 20130108 (5 Comments) 
 When it's not possible. by Jer (20130110 11:27:52) 
 Analytic beginning. by Jer (20130109 13:48:50) 
Under Triple 8 (in Numbers) Posted on 20130108 (9 Comments) 
 re(4): Observation by Jer (20130111 14:01:08) 
 re(2): Observation by Jer (20130110 13:42:14) 
 Observation by Jer (20130108 12:49:12) 
Under Fifth powers (in Just Math) Posted on 20130106 (8 Comments) 
 re(2): Assuming... by Jer (20130107 12:53:05) 
 re: my way by Jer (20130107 12:45:56) 
 Assuming... by Jer (20130106 19:04:30) 
Under Die Order (in Probability) Posted on 20130104 (7 Comments) 
 Solution by Jer (20130104 14:02:54) 
Under Accurate Association (in Logic) Posted on 20130103 (3 Comments) 
 A solution by Jer (20130103 11:03:12) 
Under Divisibility of factorials II (in Numbers) Posted on 20130101 (2 Comments) 
 n=5 like part 1 by Jer (20130102 13:40:19) 
Under Divisibility of factorials (in Numbers) Posted on 20121229 (1 Comments) 
 A start. by Jer (20121229 23:32:15) 
Under Perpendicular (in Geometry) Posted on 20121226 (5 Comments) 
 Very short version of analytic solution by Jer (20121226 23:49:36) 
Under Dollars and Cents II (in Just Math) Posted on 20121219 (5 Comments) 
 re(2): No brute force solution by Jer (20121220 11:50:56) 
 No brute force solution by Jer (20121219 14:04:32) 
Under Five Fives Fancy Formula (in Just Math) Posted on 20121217 (4 Comments) 
 re: another form of the answer  nope by Jer (20121218 13:59:18) 
Under Ratio Resolution III (in Weights and Scales) Posted on 20121214 (2 Comments) 
 alternate solution by Jer (20121214 16:10:35) 
Under Exp=log (in Just Math) Posted on 20121212 (9 Comments) 
 re(3): possible solutioncorrection by Jer (20121213 11:13:02) 
Under Subtractive years (in Numbers) Posted on 20121212 (6 Comments) 
 Millennial question by Jer (20121213 10:57:17) 
 By calculator program by Jer (20121212 12:35:15) 
Under Go count (in Numbers) Posted on 20121211 (6 Comments) 
 Solution by Jer (20121211 12:59:39) 
Under My new sequence (in Sequences) Posted on 20121208 (6 Comments) 
 Stronger hint by Jer (20180422 11:25:13) 
 Hint. by Jer (20121209 20:41:35) 
Under Pyramid Maneuver (in Geometry) Posted on 20121206 (4 Comments) 
 re(2): No trig soluiton by Jer (20121210 13:51:01) 
 No trig soluiton by Jer (20121207 11:44:59) 
Under GCD of Fibonacci (in Numbers) Posted on 20121206 (2 Comments) 
 Is it this simple? by Jer (20121206 10:41:31) 
Under One equation with nine unknowns! (2) (in Numbers) Posted on 20121205 (3 Comments) 
 re: computer solution by Jer (20121205 12:49:10) 
Under Two Dominoes (in Probability) Posted on 20121204 (1 Comments) 
 Solution by Jer (20121204 13:10:45) 
Under Intersection of Bisectors (in Geometry) Posted on 20121201 (2 Comments) 
 Proof. by Jer (20121203 13:56:48) 
 From sketchpad. No proof. by Jer (20121203 13:10:40) 
Under Twelve Period Tease (in Just Math) Posted on 20121130 (5 Comments) 
 re: This may be right (Why it isn't.) by Jer (20121201 00:35:54) 
 This may be right by Jer (20121130 11:11:06) 
Under A square is a cube (in Numbers) Posted on 20121129 (2 Comments) 
 Answer by Jer (20121129 11:27:27) 
Under Ratio Resolution II (in Just Math) Posted on 20121124 (3 Comments) 
 I think I got it. by Jer (20121125 00:03:57) 
Under 5 partitions (in Just Math) Posted on 20121121 (3 Comments) 
 By hand by Jer (20121121 13:19:35) 
Under Corner Commencement (in Word Problems) Posted on 20121119 (2 Comments) 
 Solution by Jer (20121119 12:26:19) 
Under Peculiar pentagon (in Geometry) Posted on 20121115 (1 Comments) 
 General Proof by Jer (20121115 11:09:03) 
Under 2way traffic (in Word Problems) Posted on 20121114 (7 Comments) 
 I Palindrome I by Jer (20121114 12:51:27) 
Under Consecutive Contemplation (in Numbers) Posted on 20121108 (6 Comments) 
 Not proven yet but I have a guess by Jer (20121108 16:35:18) 
Under Missing digit (in General) Posted on 20121103 (3 Comments) 
 A link by Jer (20121103 22:20:22) 
Under Vampire numbers (in Just Math) Posted on 20121031 (3 Comments) 
 Year in vampire number or fang? by Jer (20121031 12:28:28) 
Under Exploring HCNs (in Numbers) Posted on 20121026 (5 Comments) 
 An idea for 4. by Jer (20121026 16:22:26) 
Under Store Survey (in Just Math) Posted on 20121016 (2 Comments) 
 Another way to think about it (spoiler) by Jer (20121017 12:33:53) 
Under A flawed proof? (2) (in Tricks) Posted on 20120927 (3 Comments) 
 You can't do that by Jer (20120927 10:48:59) 
Under A Pythagorean piglet (in Just Math) Posted on 20120922 (4 Comments) 
 re(2): Oinking solution. by Jer (20120926 12:41:34) 
 Oinking solution. by Jer (20120925 16:17:25) 
Under Though this be madness, yet there is method in it... (in Numbers) Posted on 20120920 (6 Comments) 
 re: Solution by Jer (20120920 22:34:50) 
Under A productive s.o.d. (in Just Math) Posted on 20120919 (5 Comments) 
 re: A start by Jer (20120920 14:00:47) 
 A start by Jer (20120919 18:34:53) 
Under Boxing Baffle (in Logic) Posted on 20120912 (4 Comments) 
 re: computer solution by Jer (20120913 10:54:15) 
Under 440 (in Tricks) Posted on 20120910 (12 Comments) 
 re: Time Solution by Jer (20120911 12:29:27) 
Under Complex Conclusion (in Just Math) Posted on 20120829 (6 Comments) 
 re(2): Playing around on the complex plane. by Jer (20120831 15:48:56) 
 Playing around on the complex plane. by Jer (20120830 16:20:59) 
 Solution by Jer (20120829 13:57:00) 
Under Floor and Absolute (in Calculus) Posted on 20120817 (2 Comments) 
 Solution? by Jer (20120817 14:08:37) 
Under Timely determination II (in Just Math) Posted on 20120713 (4 Comments) 
 One way by Jer (20120713 11:25:46) 
Under Circle in a Prism (in Shapes) Posted on 20120630 (2 Comments) 
 n=3 and n=large by Jer (20120701 14:27:19) 
 n=4 (the easy one) by Jer (20120701 00:29:51) 
Under One is k times the other (in Numbers) Posted on 20120625 (7 Comments) 
 Possible solution by Jer (20120625 12:12:57) 
Under Equal digits (in Numbers) Posted on 20120611 (7 Comments) 
 re(2): Solution (spoiler) Base 12 error by Jer (20120613 12:56:05) 
Under Irrational to Rational (in Just Math) Posted on 20120609 (2 Comments) 
 Two possible n by Jer (20120611 12:31:26) 
Under Fruit prices (in Word Problems) Posted on 20120605 (8 Comments) 
 A semisensible solution by Jer (20120605 13:14:29) 
Under Concylic Feet Part 2 (in Geometry) Posted on 20120524 (2 Comments) 
 Observations by Jer (20120524 14:05:14) 
Under Prefix Precision (in Word Problems) Posted on 20120523 (3 Comments) 
 All but #3 by Jer (20120523 12:24:46) 
Under Triangular Crease 789 (in Shapes) Posted on 20120520 (7 Comments) 
 re: 6 solutions (unverified) Only 4 Work by Jer (20120522 14:06:47) 
 6 solutions (unverified) by Jer (20120522 13:24:41) 
 re: Geometer's Sketchpad Solution by Jer (20120521 13:52:24) 
 Algebra solution by Jer (20120521 13:41:55) 
Under A Prime Triplet (in Numbers) Posted on 20120519 (5 Comments) 
 re: Prime solution (?'s) by Jer (20120519 23:21:10) 
Under Ready, action…,CUT! (in Geometry) Posted on 20120516 (19 Comments) 
 re(5): Here's a picture in fact two with links by Jer (20120518 08:59:51) 
 Trying another picture by Jer (20120518 00:45:09) 
 Here's a picture. by Jer (20120516 23:06:41) 
 re(2): Solution by Jer (20120516 13:27:58) 
 Pythagorean by Jer (20120516 11:04:00) 
Under Last 2007 digits (in Just Math) Posted on 20120512 (3 Comments) 
 A start by Jer (20120514 09:05:33) 
Under Doubtful Divisibility (in Tricks) Posted on 20120509 (3 Comments) 
 Error(s) spotted by Jer (20120509 12:17:47) 
Under Mirror, mirror (in Numbers) Posted on 20120504 (4 Comments) 
 A quick note and some Links (spoilers) by Jer (20120504 11:21:40) 
Under Leanto shelter (in Shapes) Posted on 20120503 (5 Comments) 
 re: some thoughts (Clarification.) by Jer (20120503 13:56:42) 
Under A red herring marble (in Logic) Posted on 20120501 (1 Comments) 
 One fish two fish red fish blue fish (solution) by Jer (20120501 12:11:34) 
Under Normal or not? (in Numbers) Posted on 20120429 (3 Comments) 
 I think... by Jer (20120501 12:52:07) 
Under Smart Trams (in Word Problems) Posted on 20120426 (8 Comments) 
 re(2): The two letter word(s?) by Jer (20120427 22:23:35) 
 The two letter word(s?) by Jer (20120427 10:46:05) 
Under No comments (in General) Posted on 20120412 (3 Comments) 
 Hand solution by Jer (20120413 11:03:07) 
Under Four people II (in Logic) Posted on 20120411 (6 Comments) 
 Solution with assumptions by Jer (20120411 12:32:37) 
Under Return to Treasure Island (in General) Posted on 20120405 (14 Comments) 
 I've seen this before so just a hint... by Jer (20120405 22:39:19) 
Under Point to 2012 (in Just Math) Posted on 20120404 (7 Comments) 
 Explaining the arithmetic sequence. by Jer (20120405 13:35:48) 
 Non computer solution (pretty much) by Jer (20120404 13:38:30) 
Under Identifiable Identities (in Cryptography) Posted on 20120331 (6 Comments) 
 Sorry I forgot to tell you. by Jer (20120331 17:25:20) 
Under Lengthy Word (in Word Problems) Posted on 20120329 (4 Comments) 
 re: Solution method by Jer (20120330 14:52:23) 
Under DO MAGIC (in Numbers) Posted on 20120327 (2 Comments) 
 Got it. by Jer (20120327 11:57:46) 
Under From primes to palindrome (in Numbers) Posted on 20120324 (7 Comments) 
 All solutions by Jer (20120324 22:49:03) 
Under I can see the origin from here. (in Calculus) Posted on 20120311 (2 Comments) 
 Part 4 still unsolved by Jer (20121005 10:57:06) 
Under Locus of Intersections (in Geometry) Posted on 20120309 (4 Comments) 
 re(2): Initital exploration by Jer (20120310 00:34:58) 
 Initital exploration by Jer (20120309 12:06:36) 
Under Regular Tetrahedron 1234 (in Shapes) Posted on 20120308 (8 Comments) 
 re(2): Is it possible? by Jer (20120310 00:39:08) 
 re(2): Is it possible? by Jer (20120308 16:45:41) 
 Is it possible? by Jer (20120308 11:31:16) 
Under A Cup Of Coffee II (in Weights and Scales) Posted on 20120306 (11 Comments) 
 How to get 8%? by Jer (20120307 09:12:08) 
Under Matchstick Frenzy II (in Just Math) Posted on 20120226 (6 Comments) 
 General n pile solution with proof by Jer (20120227 12:55:44) 
Under S.o.d . of s.o.d ,,, (in Just Math) Posted on 20120221 (4 Comments) 
 Solution by Jer (20120221 12:12:24) 
Under Decimal base? Of course... (in Tricks) Posted on 20120213 (15 Comments) 
 Well... by Jer (20120213 12:18:10) 
Under Boosted board (in General) Posted on 20120207 (11 Comments) 
 re: Final Answer ?? (spoiler) by Jer (20120209 21:27:41) 
 re: Final Answer? (spoiler) by Jer (20120209 10:47:34) 
 re: Shaky ground? You misunderstand. by Jer (20120208 09:02:35) 
Under Non  Zero Digit II (in Just Math) Posted on 20120205 (7 Comments) 
 re: No Subject by Jer (20120207 12:29:20) 
 The previous two answers by Jer (20120206 13:20:14) 
Under Chess Tournament (in Logic) Posted on 20120203 (2 Comments) 
 Spoiler solution. by Jer (20120203 11:02:56) 
Under Covering a rectangle by circles (in Shapes) Posted on 20120130 (6 Comments) 
 Thoughts by Jer (20120130 12:33:57) 
Under Simultaneous Settlement (in Just Math) Posted on 20120127 (8 Comments) 
 Solution by Jer (20120127 11:10:40) 
Under Odd One Out II (in General) Posted on 20120125 (4 Comments) 
 2 Possible answers by Jer (20120125 11:37:33) 
Under Logical connectives (in Algorithms) Posted on 20120124 (6 Comments) 
 Solution if I understand the logic of > and by Jer (20120124 13:58:26) 
Under Yes and no (in Just Math) Posted on 20120121 (1 Comments) 
 musings by Jer (20120122 02:00:19) 
Under Isosceles from Regular (in Shapes) Posted on 20120120 (13 Comments) 
 re(2): Equilateral triangle are certainly isosceles. by Jer (20120121 23:11:16) 
 Equilateral triangle are certainly isosceles. by Jer (20120121 16:18:13) 
 re: Not sure if this is what you want  A rewrite. by Jer (20120121 00:05:43) 
Under 'W'here to Start (in Cryptography) Posted on 20120119 (3 Comments) 
 Some thoughts by Jer (20120120 16:05:01) 
Under Suffix Settlement (in Word Problems) Posted on 20120117 (8 Comments) 
 All but the last by Jer (20120117 11:16:22) 
Under Sum Binary Digits (in Probability) Posted on 20120116 (2 Comments) 
 Counting, hoping I didn't make a mistake. by Jer (20120116 17:32:25) 
Under Integer Forms (in Just Math) Posted on 20120107 (2 Comments) 
 re: Some Observations (partial solution) / The rest by Jer (20120107 20:29:52) 
Under MultiBirth Convention (in Numbers) Posted on 20120105 (1 Comments) 
 I think this works. by Jer (20120105 12:30:13) 
Under More about 1729 (in Numbers) Posted on 20120104 (8 Comments) 
 re: computer solution by Jer (20120104 13:43:55) 
 Solutions by Jer (20120104 11:27:31) 
Under A repunit number (in Numbers) Posted on 20111226 (5 Comments) 
 re: is there a mistake in the puzzle? by Jer (20111226 11:29:12) 
 Solution by Jer (20111226 11:25:28) 
Under Summing square inverses (in Just Math) Posted on 20111225 (2 Comments) 
 Pen and paper solution by Jer (20111225 17:23:09) 
Under PentaWord 1 (in General) Posted on 20111214 (6 Comments) 
 Probably not solved but a reasonable method by Jer (20111214 11:06:10) 
Under Not sexy! (in Just Math) Posted on 20111213 (1 Comments) 
 Work my way up by Jer (20111213 10:56:07) 
Under Orthogonal Conics (in Geometry) Posted on 20111210 (2 Comments) 
 A single case by Jer (20111212 16:04:11) 
Under Ones or twos (in Just Math) Posted on 20111207 (4 Comments) 
 re(2): Depends what natural numbers are. by Jer (20111207 13:46:59) 
 Depends what natural numbers are. by Jer (20111207 11:02:43) 
Under Four Point Polygons (in Probability) Posted on 20111206 (2 Comments) 
 Almost trivial by Jer (20111206 11:10:30) 
Under Timely determination (in Just Math) Posted on 20111129 (2 Comments) 
 Hmm by Jer (20111129 13:55:03) 
Under Pandigital Multiple (in Probability) Posted on 20111125 (2 Comments) 
 Base 10 by Jer (20111128 16:09:30) 
 Sometimes impossible, not nearly solved by Jer (20111128 11:46:24) 
Under Point to 2011 (in Just Math) Posted on 20111122 (2 Comments) 
 .2011 by Jer (20111122 11:05:43) 
Under Platonic Colors (in Probability) Posted on 20111121 (1 Comments) 
 Formula and solution. No derivation. by Jer (20111121 16:13:44) 
Under Proximo Ultimo Sum (in Sequences) Posted on 20111116 (5 Comments) 
 re: The easy way is turning out to be hard by Jer (20111116 12:05:31) 
 The easy way is turning out to be hard by Jer (20111116 11:22:03) 
Under Frog Frolics (in Numbers) Posted on 20111115 (6 Comments) 
 Some more thoughts and more questions by Jer (20111116 09:07:08) 
 Some thoughts and questions by Jer (20111115 16:07:16) 
Under Some relation! (in Just Math) Posted on 20111111 (10 Comments) 
 re: Solution by Jer (20111111 16:25:44) 
Under Momentous Multiple (in Numbers) Posted on 20111110 (2 Comments) 
 Thoughts by Jer (20111110 13:18:42) 
Under Magic 46 (in Numbers) Posted on 20111103 (2 Comments) 
 too easy by Jer (20111103 11:26:52) 
Under Looking for n (2) (in Numbers) Posted on 20111102 (1 Comments) 
 Solution and a question/request by Jer (20111102 10:56:13) 
Under An extended harmony (in Just Math) Posted on 20111101 (5 Comments) 
 A lower bound and a stab at a solution by Jer (20111101 10:37:54) 
 A simple upper bound by Jer (20111101 10:19:57) 
Under Sense of Discovery (in General) Posted on 20111031 (11 Comments) 
 pairs by Jer (20111106 01:26:05) 
Under Angle of view (in Just Math) Posted on 20111028 (2 Comments) 
 algebra solution by Jer (20111028 13:42:03) 
Under Going Maximum with Geometric (in Just Math) Posted on 20111021 (4 Comments) 
 Analysis and solution by Jer (20111021 16:20:27) 
Under Last three digits (in Just Math) Posted on 20111019 (9 Comments) 
 re(4): twothirds of a solution. by Jer (20111019 16:02:29) 
 re(2): twothirds of a solution. by Jer (20111019 13:57:49) 
 twothirds of a solution. by Jer (20111019 11:08:01) 
Under Three customers (in Logic) Posted on 20111017 (9 Comments) 
 Im having waffles (solution) by Jer (20111017 13:50:05) 
Under 2011 Square End (in Just Math) Posted on 20111006 (3 Comments) 
 an inefficient method. by Jer (20111007 12:28:20) 
Under Multiply Digits, Get Quadratic (in Just Math) Posted on 20111005 (2 Comments) 
 Different solution by Jer (20111005 11:34:16) 
Under Concerning combinatorics (in Numbers) Posted on 20111004 (7 Comments) 
 1 step further. by Jer (20111005 10:53:14) 
Under Twodigit numbers (in Sequences) Posted on 20110929 (4 Comments) 
 I got it (spoiler.) by Jer (20110929 13:20:14) 
Under Telephone Number Travail (in Just Math) Posted on 20110928 (2 Comments) 
 Solution by Jer (20110928 11:12:07) 
Under Surf City Semiprimes (in Numbers) Posted on 20110927 (4 Comments) 
 I don't think it's true. Maybe I do. by Jer (20110927 11:13:57) 
Under 1000 ways (in Numbers) Posted on 20110923 (5 Comments) 
 re: Making inside info public: Hint (credit to Jer) by Jer (20110923 23:35:17) 
Under Sum Month and Day II (in General) Posted on 20110920 (4 Comments) 
 part 3 and maybe 2 by Jer (20110920 11:26:47) 
Under 2011 Square Start (in Just Math) Posted on 20110916 (5 Comments) 
 A method by Jer (20110916 12:45:25) 
Under Lucky seven V (in Just Math) Posted on 20110913 (3 Comments) 
 Outline of noncomputer solution by Jer (20110914 11:03:47) 
Under Five out of one (in Geometry) Posted on 20110906 (3 Comments) 
 (almost) complete analysis by Jer (20110906 13:01:30) 
Under Factorial Remainder (in Just Math) Posted on 20110902 (9 Comments) 
 Trying to avoid 98 mods... by Jer (20110902 14:56:06) 
Under Melting the ice (in General) Posted on 20110901 (12 Comments) 
 3 solutions by Jer (20110901 14:09:54) 
Under It is not hard (in Word Problems) Posted on 20110829 (8 Comments) 
 re: The only way I can see it... by Jer (20110829 17:23:51) 
Under Sum of Ratios (in Geometry) Posted on 20110825 (2 Comments) 
 Unproven answer. by Jer (20110825 13:58:29) 
Under a!+ b!+ c!= abc – a (in Just Math) Posted on 20110814 (1 Comments) 
 One triplet by Jer (20110821 01:35:05) 
Under 59 in one way (in Numbers) Posted on 20110813 (7 Comments) 
 re(2): Solution by Jer (20110821 20:22:13) 
 Solution by Jer (20110821 01:28:14) 
Under Floors and decimals integral II (in Calculus) Posted on 20110721 (3 Comments) 
 Solution for m=n=2 by Jer (20110725 19:03:12) 
 Solution to a lower dimension. by Jer (20110725 00:11:00) 
Under Solve This (in Word Problems) Posted on 20110717 (4 Comments) 
 re(2): All except R by Jer (20110718 00:08:49) 
Under Three spheres (in Geometry) Posted on 20110708 (1 Comments) 
 Possible 3 sphere solution. by Jer (20110711 02:02:46) 
Under Missing Hexadecimal Digits (in Just Math) Posted on 20110618 (2 Comments) 
 What is wrong? by Jer (20110621 10:47:33) 
Under By all means (in Just Math) Posted on 20110616 (5 Comments) 
 ths time by vectors by Jer (20110616 15:54:07) 
 Another trigonometry way (this is too fun) by Jer (20110616 15:35:29) 
 A more calculus way by Jer (20110616 15:17:30) 
 A geometry + calculus way by Jer (20110616 15:02:15) 
 A trigonometry way by Jer (20110616 14:49:38) 
Under Sum number equals integer (in Numbers) Posted on 20110611 (5 Comments) 
 A start, by Jer (20110614 02:03:15) 
Under Missing digits (in Just Math) Posted on 20110606 (8 Comments) 
 D5 simpler by Jer (20110607 10:16:13) 
 A few by hand by Jer (20110606 15:07:01) 
Under Fortieth logs (in Just Math) Posted on 20110531 (15 Comments) 
 Who is right for 7? by Jer (20110601 15:08:08) 
 re(2): A start (spoiler) by Jer (20110531 17:06:27) 
Under A welldefined age (in Just Math) Posted on 20110523 (2 Comments) 
 solution by Jer (20110523 14:56:32) 
Under Successively incident (in Just Math) Posted on 20110518 (2 Comments) 
 Hand solution by Jer (20110519 10:32:02) 
Under How young is he? (in Just Math) Posted on 20110516 (2 Comments) 
 solution by Jer (20110516 14:57:48) 
Under Sum Remainder Deduction (in Just Math) Posted on 20110514 (1 Comments) 
 Long Solution by Jer (20110517 17:25:57) 
Under Terminating in three 8s (in Just Math) Posted on 20110511 (3 Comments) 
 unaided solution by Jer (20110511 15:29:26) 
Under 1 penny / 1 die (in Probability) Posted on 20110506 (5 Comments) 
 re: standard deviations  of course  by Jer (20110508 00:18:22) 
 re: some solutions, but not sure about standard deviations by Jer (20110506 15:52:41) 
Under Concurrent Cevians (in Geometry) Posted on 20110503 (3 Comments) 
 with different givens by Jer (20110503 14:59:03) 
Under Inversely Irrational (in Just Math) Posted on 20110501 (1 Comments) 
 Inverse? by Jer (20110502 15:11:04) 
Under S.O.S. partition needed!! (in Just Math) Posted on 20110423 (1 Comments) 
 abcde by Jer (20110425 10:59:05) 
Under Limiting Ratio (in Calculus) Posted on 20110422 (3 Comments) 
 easy/hard by Jer (20110422 14:40:04) 
Under Random number sequence (in Probability) Posted on 20110420 (2 Comments) 
 re: Simple enough by Jer (20110421 01:26:53) 
 Simple enough by Jer (20110421 01:24:22) 
Under Unconsecutivesummables (in Numbers) Posted on 20110414 (3 Comments) 
 re: possible solution by Jer (20110415 00:22:27) 
Under Odd and Integer Zeros (in Just Math) Posted on 20110413 (4 Comments) 
 re: Question... by Jer (20110413 15:08:53) 
Under Lattice Point as Centroid (in Geometry) Posted on 20110410 (8 Comments) 
 re(2): One Solution (spoiler) by Jer (20110411 11:40:09) 
Under Find the area (in Numbers) Posted on 20110408 (5 Comments) 
 Hyperbolic solution. Seems to work. by Jer (20110408 15:16:18) 
Under My favorite numbers VII (in Just Math) Posted on 20110406 (3 Comments) 
 Is it really this easy? by Jer (20110406 15:09:44) 
Under The median is shorter (in Geometry) Posted on 20110404 (1 Comments) 
 solution by Jer (20110404 15:10:47) 
Under Almost equal (in Just Math) Posted on 20110401 (10 Comments) 
 Now I remember the D1 way. by Jer (20110401 16:51:05) 
 I must be doing something wrong. by Jer (20110401 16:37:48) 
Under Sequence Group V (in Just Math) Posted on 20110331 (4 Comments) 
 Have to start somewhere. by Jer (20110405 02:00:21) 
Under Back to the base (in Numbers) Posted on 20110330 (3 Comments) 
 Derivation by Jer (20110330 22:39:18) 
Under Powerful Digit (in Probability) Posted on 20110329 (12 Comments) 
 re: An attempt as (3), but it looks wrong according to simulation by Jer (20110330 14:10:39) 
 re: part (1) not so hard after all (spoiler) by Jer (20110330 10:01:43) 
Under All or Exactly Two (in Geometry) Posted on 20110327 (5 Comments) 
 Some thoughts by Jer (20110327 23:56:40) 
Under 2011 Powered Digits (in Just Math) Posted on 20110325 (5 Comments) 
 re: The Broll guesses... by Jer (20110325 14:28:25) 
Under Twice true (in Numbers) Posted on 20110324 (3 Comments) 
 full solution by Jer (20110324 11:09:02) 
Under Incenter Assignment (in Geometry) Posted on 20110323 (4 Comments) 
 re(2): Solution. Hope this makes sense. by Jer (20110323 17:03:55) 
 Solution. Hope this makes sense. by Jer (20110323 13:31:32) 
Under Numerous Numeral Enumeration (in Just Math) Posted on 20110320 (10 Comments) 
 re(2): Solution of simple problem by Jer (20110321 17:31:24) 
 Solution of simple problem by Jer (20110321 14:12:28) 
 re(2): Initial thoughts. by Jer (20110321 14:07:59) 
 Initial thoughts. by Jer (20110321 01:00:07) 
Under Powerful Couple (in Probability) Posted on 20110316 (6 Comments) 
 re(2): exploration turned up something strange by Jer (20110317 13:58:24) 
 exploration turned up something strange by Jer (20110316 14:14:58) 
Under Partition a Square (in Shapes) Posted on 20110315 (2 Comments) 
 Spoiler. by Jer (20110316 09:16:12) 
Under Domino Polygons (in Probability) Posted on 20110314 (5 Comments) 
 re: 25! (Eureka!) by Jer (20110315 16:05:20) 
Under Neither 3 nor 6 (in Just Math) Posted on 20110311 (6 Comments) 
 re(2): Part a only (spoiler) by Jer (20110314 09:11:42) 
Under Hill Numbers Settlement II (in Probability) Posted on 20110309 (5 Comments) 
 possible solution by Jer (20110309 14:58:17) 
Under Two happy ends (in Just Math) Posted on 20110307 (11 Comments) 
 re(3): solution NOT enough by Jer (20110308 10:08:47) 
 solution enough by Jer (20110307 14:32:20) 
Under a) is easy, b) is not (in Just Math) Posted on 20110218 (8 Comments) 
 My error  why we disagree on part 1 by Jer (20110219 17:57:58) 
 Why a) is easy... by Jer (20110218 16:51:57) 
Under Upgrade to 13 (in Weights and Scales) Posted on 20110216 (4 Comments) 
 Almost solution. by Jer (20110217 18:16:48) 
Under Sum Supplement Settlement (in Geometry) Posted on 20110212 (2 Comments) 
 Not a simple solution. by Jer (20110215 11:11:14) 
Under The Natives of Calendria (in Liars and Knights) Posted on 20110210 (3 Comments) 
 Analysis & solution by Jer (20110210 18:04:29) 
Under Reloading the Dice (in Probability) Posted on 20110120 (10 Comments) 
 Complete proof finished. by Jer (20110124 16:44:44) 
 re(2): A further improvement by Jer (20110124 16:31:50) 
 A further improvement by Jer (20110120 20:00:10) 
 possible solution by Jer (20110120 18:11:52) 
Under Two ellipses (in Geometry) Posted on 20110119 (3 Comments) 
 3 ellipses is as bad as I thought. by Jer (20110120 16:52:19) 
 Possible solution with two ellipses. by Jer (20110119 13:10:54) 
Under A sequence (in Sequences) Posted on 20110114 (3 Comments) 
 re: who's counting? by Jer (20110114 17:25:25) 
Under I WONDER (in Logic) Posted on 20110113 (10 Comments) 
 Divisibility in any base. by Jer (20110113 15:28:43) 
Under Scarce primes (in Numbers) Posted on 20110110 (10 Comments) 
 re(2): proof by Jer (20110111 10:18:20) 
 proof by Jer (20110110 15:01:43) 
Under Lucky seven III (in Just Math) Posted on 20110105 (4 Comments) 
 With only a little cheating by Jer (20110105 14:58:35) 
Under 5 Digit Number II (in Numbers) Posted on 20110103 (4 Comments) 
 re(2): A start. by Jer (20110104 11:04:31) 
 A start. by Jer (20110103 15:13:28) 
Under Around the ring (in Shapes) Posted on 20101220 (9 Comments) 
 re(2): part 1 not finished. by Jer (20101221 15:08:01) 
 part 1 not finished. by Jer (20101221 10:15:11) 
Under Sum Divisors  1 = Number (in Just Math) Posted on 20101216 (3 Comments) 
 Solution by Jer (20101217 16:26:14) 
Under Reverse Square to Prime (in Numbers) Posted on 20101214 (1 Comments) 
 Ruling out possibilities by Jer (20101214 17:17:43) 
Under Hail to thee, Sofia! (in Just Math) Posted on 20101213 (10 Comments) 
 re(2): What does not work..FIGURES CAN'T LIE . by Jer (20101214 10:39:09) 
 What does not work... by Jer (20101213 17:35:22) 
Under Minimum perimeter length (in Geometry) Posted on 20101210 (5 Comments) 
 re: this program finds... (spoiler) by Jer (20101210 16:26:33) 
 Analytic solution by Jer (20101210 16:12:22) 
Under Mother of nine (in Just Math) Posted on 20101203 (5 Comments) 
 just a bit of brute force by Jer (20101203 17:29:16) 
Under Dozen Divisibility Dilemma (in Just Math) Posted on 20101202 (4 Comments) 
 re: Possible solution by Jer (20101203 17:52:28) 
Under Divide Into Four (in Geometry) Posted on 20101202 (3 Comments) 
 Full solution by Jer (20101202 15:34:48) 
Under Mélodie de porc (in Cryptography) Posted on 20101130 (3 Comments) 
 re: Hints? Ok a hint or two. by Jer (20101205 00:22:20) 
Under Polynomial Ponder (in Just Math) Posted on 20101126 (2 Comments) 
 Solution? by Jer (20101126 17:27:14) 
Under Duplicate Digit Determination II (in Just Math) Posted on 20101119 (3 Comments) 
 An analogous case. by Jer (20101119 17:26:33) 
Under srebmuN desreveR (in Just Math) Posted on 20101118 (4 Comments) 
 Analytic Solution to part 2 by Jer (20101119 16:59:04) 
Under Ambiguous PIN Code (in Numbers) Posted on 20101117 (8 Comments) 
 re(3): A Pin that works by Jer (20101119 16:22:05) 
 re: Possible solution by Jer (20101119 16:13:10) 
 A Pin that works by Jer (20101118 15:55:00) 
Under Magic, but limited (in Just Math) Posted on 20101112 (1 Comments) 
 Full solution by Jer (20101112 16:04:01) 
Under Odd One Out (in Word Problems) Posted on 20101110 (10 Comments) 
 probably what you had in mind by Jer (20101110 12:42:55) 
Under Length of Angle Bisector (in Geometry) Posted on 20101107 (3 Comments) 
 trig solution worked out by Jer (20101108 14:57:42) 
Under Abracadabra (in Word Problems) Posted on 20101029 (3 Comments) 
 making things up by Jer (20101029 15:12:48) 
Under Defined Function (in Just Math) Posted on 20101024 (4 Comments) 
 True story by Jer (20101027 12:30:49) 
Under Big, super and prime (in Numbers) Posted on 20101020 (8 Comments) 
 Solved by hand by Jer (20101021 15:39:50) 
Under Delicate Divisibility (in Probability) Posted on 20101019 (7 Comments) 
 re(3): ABACADABrA (Solution) by Jer (20101020 01:30:59) 
 ABACADABrA (Solution) by Jer (20101019 17:07:14) 
Under TriNRect (in Just Math) Posted on 20101013 (3 Comments) 
 re: solution. minor correction by Jer (20101014 15:15:37) 
Under Increase in number of factors. (in Numbers) Posted on 20101005 (3 Comments) 
 Solution by Jer (20101005 14:55:03) 
Under Cross Product Equality Settlement (in Sequences) Posted on 20101004 (2 Comments) 
 Full solution by Jer (20101004 15:01:41) 
Under Three forever (in Tricks) Posted on 20100930 (5 Comments) 
 Solution by Jer (20100930 15:49:41) 
Under Nineteen triplets (in Just Math) Posted on 20100923 (10 Comments) 
 Rational number solution. by Jer (20100923 17:16:04) 
Under If....Then... (in Logic) Posted on 20100921 (4 Comments) 
 re: computer solution (with diagnals) by Jer (20100922 14:50:49) 
Under Which multiple of 9? (in Just Math) Posted on 20100917 (8 Comments) 
 Part 5 by Jer (20100926 21:11:14) 
Under Foundation Piece (in Cryptography) Posted on 20100916 (7 Comments) 
 Spoiler by Jer (20100916 15:05:22) 
Under 129 again (in Numbers) Posted on 20100915 (6 Comments) 
 solution by Jer (20100915 14:54:13) 
Under Slowing by snowing (in Numbers) Posted on 20100913 (6 Comments) 
 re: numerical integration by Jer (20100913 14:52:02) 
Under Lamps in a row (in Geometry) Posted on 20100903 (11 Comments) 
 Almost proved: two gaps by Jer (20100903 15:34:40) 
Under The coat of many (in Word Problems) Posted on 20100624 (4 Comments) 
 You'll never see a unicorn. by Jer (20100625 12:41:06) 
Under Number = Sum (Digit)*Product (Digit) (in Numbers) Posted on 20100621 (10 Comments) 
 Solution & thoughts by Jer (20100621 14:09:07) 
Under Three Perps (in Geometry) Posted on 20100611 (2 Comments) 
 Analytic solution by Jer (20100611 16:01:23) 
Under Russian Roulette (in Probability) Posted on 20100608 (12 Comments) 
 More complicated than I thought. How to do it. by Jer (20100609 15:56:32) 
 Empty seats. by Jer (20100608 14:38:31) 
Under Cover the Center (in Geometry) Posted on 20100604 (6 Comments) 
 Trying N=4 by Jer (20100604 17:14:45) 
 N=2 and N=3 by Jer (20100604 16:11:15) 
Under Cubic and Consecutive Concern II (in Probability) Posted on 20100531 (10 Comments) 
 False start on an analytic solution by Jer (20100601 15:14:59) 
Under Make it equal (in Numbers) Posted on 20100526 (7 Comments) 
 Full proof. by Jer (20100527 11:32:44) 
Under Constructing Minimal Area (in Geometry) Posted on 20100513 (5 Comments) 
 re: Solution by Jer (20100513 15:07:11) 
Under Power of two (in Just Math) Posted on 20100512 (1 Comments) 
 Proof. by Jer (20100512 15:26:52) 
Under Many triplets (in Just Math) Posted on 20100510 (6 Comments) 
 re: Another set by Jer (20100512 16:53:19) 
 Some more infinities of solutions. by Jer (20100510 15:36:11) 
Under Successive Stones Settlement (in Games) Posted on 20100503 (2 Comments) 
 A bunch of random thoughts. by Jer (20100505 16:20:55) 
Under 2*P + 2 = Perfect Square? (in Just Math) Posted on 20100501 (5 Comments) 
 re: a computerized start but no proof and too small a sample size by Jer (20100503 02:03:04) 
Under Power Pattern Poser (in Sequences) Posted on 20100427 (3 Comments) 
 Answer. No time to explain. by Jer (20100427 17:27:03) 
Under Choose your neighbor (in Numbers) Posted on 20100423 (3 Comments) 
 Structure by Jer (20100423 13:31:07) 
Under Double coded message (in Cryptography) Posted on 20100421 (2 Comments) 
 Hint: by Jer (20100423 11:34:40) 
Under Choose To Prime Poser (in Just Math) Posted on 20100418 (4 Comments) 
 re(2): No Subject. No real hole in my proof. by Jer (20100426 15:42:02) 
 No Subject by Jer (20100423 16:28:43) 
Under Indi Games (in Geometry) Posted on 20100413 (12 Comments) 
 My thoughts on solutions and posted solution. by Jer (20100415 11:20:21) 
Under Twelve Divisor Trial (in Probability) Posted on 20100409 (7 Comments) 
 re: BARBARA IS EXPECTING (tiny error) by Jer (20100409 15:30:47) 
 solution by Jer (20100409 15:08:16) 
Under Perfect Square To Divisibility By 56 (in Just Math) Posted on 20100401 (14 Comments) 
 re: Does this explain why 7 is a factor of n? by Jer (20100406 10:18:02) 
 A start by Jer (20100401 15:26:23) 
Under Counting triplets (in Numbers) Posted on 20100331 (7 Comments) 
 re: Solution (interpretations) by Jer (20100331 14:09:23) 
Under Minimal area. (in Geometry) Posted on 20100329 (11 Comments) 
 Explanation with no real proof. by Jer (20100329 14:07:24) 
Under Gambler's triangulation (in Probability) Posted on 20100318 (9 Comments) 
 Including degenerates by Jer (20100319 14:26:56) 
 General geometric solution by Jer (20100318 14:18:10) 
Under In Harmony with averages (in Numbers) Posted on 20100312 (2 Comments) 
 A solution that might make sense. by Jer (20100312 15:07:40) 
Under Cubic and Consecutive Concern (in Probability) Posted on 20100311 (2 Comments) 
 Partial analytic solution by Jer (20100311 22:52:58) 
Under Pigeons will like it (in Numbers) Posted on 20100308 (2 Comments) 
 Adding zeros (full solution) by Jer (20100308 16:12:52) 
Under Limiting Mean (in Calculus) Posted on 20100307 (3 Comments) 
 Solution by Jer (20100308 15:21:12) 
Under Squares joining quadratics (in Just Math) Posted on 20100224 (5 Comments) 
 re: Four squares by analysis (spoiler) by Jer (20110212 19:10:06) 
 re(2): computer exploration (there is a 4th. a hint) by Jer (20100226 15:01:36) 
Under Getting Natural With Derivative And Integral (in Calculus) Posted on 20100211 (4 Comments) 
 re: Time for a solution, KS? by Jer (20100218 13:16:20) 
Under Lucky seven (in Numbers) Posted on 20100205 (5 Comments) 
 Such a number exists. by Jer (20100205 16:30:09) 
Under Infinitely Continued III (in Numbers) Posted on 20100204 (7 Comments) 
 A couple of things by Jer (20100206 15:20:25) 
 Is my reasoning valid? by Jer (20100204 15:17:51) 
Under Drop into the Bucket (in Shapes) Posted on 20100203 (9 Comments) 
 All 3 below are incorrect. No spoilers. by Jer (20100203 16:31:24) 
Under Enough is enough (in Games) Posted on 20100129 (4 Comments) 
 If its the second option (spoiler) by Jer (20100129 15:45:34) 
 Need clarification. by Jer (20100129 15:36:31) 
Under Square String Settlement (in Sequences) Posted on 20100128 (8 Comments) 
 If I counted right... by Jer (20100128 11:44:39) 
Under Right Triangles (in Geometry) Posted on 20100122 (4 Comments) 
 re(2): Thank you Descartes. 3 solutions. by Jer (20100124 02:24:13) 
 Thank you Descartes. 3 solutions. by Jer (20100122 15:05:10) 
Under Sum Month and Day (in General) Posted on 20100114 (5 Comments) 
 Leaping lizards! by Jer (20100114 14:58:35) 
Under P^{X }+ 144 = Perfect Square (in Just Math) Posted on 20100112 (9 Comments) 
 Analytic solution by Jer (20100112 14:39:18) 
Under 15Digits and Repunit Division (in Numbers) Posted on 20100107 (4 Comments) 
 Analytical Solution by Jer (20100109 20:16:05) 
Under Triangles with no area (in Shapes) Posted on 20091230 (9 Comments) 
 re: Removal? by Jer (20100101 14:15:17) 
Under Supreme Successive Shuffle (in Probability) Posted on 20091215 (9 Comments) 
 re: Some thoughts (Spoiler) Finished by Jer (20091218 16:37:57) 
 re: Recursive twoway formula. Fixed. by Jer (20091217 10:16:29) 
 Recursive twoway formula. by Jer (20091216 18:55:43) 
Under Rooting For The Limit II (in Calculus) Posted on 20091126 (4 Comments) 
 re: further computer exploration by Jer (20091128 14:34:29) 
Under sum of outcomes of three dice (in Probability) Posted on 20091120 (4 Comments) 
 pair plus a third by Jer (20091120 15:14:22) 
Under Rolling Die (in General) Posted on 20091119 (6 Comments) 
 dru my solutions by Jer (20091119 15:17:32) 
Under Consecutive 8Digit Heron (in Geometry) Posted on 20091115 (4 Comments) 
 OEIS by Jer (20091116 15:11:19) 
Under Splitting a 2 by N Rectangle (in Shapes) Posted on 20091111 (3 Comments) 
 re: Table by Jer (20091112 10:07:14) 
Under Getting Powerful With Euler II (in Calculus) Posted on 20091110 (4 Comments) 
 puzzling by Jer (20091110 15:27:08) 
Under Two Rolling Balls (in Science) Posted on 20091104 (21 Comments) 
 depends by Jer (20091104 16:56:11) 
Under Gassed Up Racing (in General) Posted on 20091102 (4 Comments) 
 Thinking about extensions (solved them too) by Jer (20091103 15:15:28) 
Under Supreme Seventy Sum (in Just Math) Posted on 20091030 (4 Comments) 
 General method by Jer (20091030 15:23:27) 
Under 4x4 Grid Difference (in Probability) Posted on 20091027 (2 Comments) 
 Bonus first: by Jer (20091027 16:29:25) 
Under The ants go marching. (in Just Math) Posted on 20091021 (7 Comments) 
 re: Anty Climax for #6 by Jer (20091028 16:16:59) 
Under 2/5 ≤ m/n ≤ 3/5 (in Just Math) Posted on 20091020 (7 Comments) 
 re: Eureka! (spoiler) by Jer (20091022 10:42:22) 
 Stumped by Jer (20091021 15:35:24) 
Under x + y * ^{3}√2 + z * ^{3}√4 = 0 (in Just Math) Posted on 20091015 (14 Comments) 
 re: Nonrigorous argument by Jer (20091015 14:59:19) 
Under No Monochrome Sums (in Numbers) Posted on 20091014 (9 Comments) 
 re: Sloane says by Jer (20091015 00:18:25) 
Under 9 points to convex pentagon (in Shapes) Posted on 20091012 (4 Comments) 
 re(3): Happy Ending by Jer (20091019 01:48:22) 
 re: Happy Ending by Jer (20091018 01:22:37) 
Under 8 points no convex pentagon (in Shapes) Posted on 20091009 (4 Comments) 
 re: possible real solution (not proven yet) counterexample by Jer (20091009 15:32:22) 
Under 5 points to convex quad (in Shapes) Posted on 20091005 (4 Comments) 
 re: another proof (tiny problem) by Jer (20091006 17:52:27) 
Under Chameleon Island (in Numbers) Posted on 20090925 (3 Comments) 
 The key to solution by Jer (20090925 15:27:02) 
Under Unit lengths from movable points to unit triangles. (in Geometry) Posted on 20090914 (11 Comments) 
 You have about as much as I do. by Jer (20090915 10:25:18) 
Under Even Corners and Equal Subgrids (in Numbers) Posted on 20090818 (5 Comments) 
 re: computer solution by Jer (20090818 14:05:40) 
Under and W (in Word Problems) Posted on 20090714 (5 Comments) 
 re: Google's thoughts  Hints by Jer (20090716 23:14:20) 
Under Terminating in seven sevens (in Numbers) Posted on 20090626 (2 Comments) 
 re: computer solution by Jer (20090626 20:32:47) 
Under 3x3 Nim (in Games) Posted on 20090625 (26 Comments) 
 re: Winning Strategy (spoiler) by Jer (20090625 17:02:11) 
Under Powering Up The Matrix (in Just Math) Posted on 20090620 (3 Comments) 
 re: Solution by Jer (20090622 13:37:20) 
Under Triangles and Squares (in Geometry) Posted on 20090617 (4 Comments) 
 re: yellow/cyan proof by Jer (20090617 14:23:39) 
Under Lights switched (in Logic) Posted on 20090603 (5 Comments) 
 The search for order... by Jer (20090604 15:08:52) 
 re(3): computer solution by Jer (20090604 13:48:23) 
 re: computer solution by Jer (20090604 11:51:06) 
Under 5 Cards Magic Trick (in Logic) Posted on 20090529 (7 Comments) 
 Possible system by Jer (20090529 14:10:41) 
 re: This is not the solution but close by Jer (20090529 13:51:34) 
Under Random chord problem (in Geometry) Posted on 20090511 (15 Comments) 
 re(2): solution, maybe (good question) by Jer (20090512 13:47:39) 
Under Taking the 5th (in Numbers) Posted on 20090503 (5 Comments) 
 This takes me back... by Jer (20090503 17:24:55) 
Under Binomial Pandigital(s) (in Numbers) Posted on 20090428 (3 Comments) 
 thoughts by Jer (20090429 13:35:09) 
Under Factorials and Powers (in Just Math) Posted on 20090422 (8 Comments) 
 Related problem by Jer (20090425 01:39:08) 
Under In a Mystery.... (in Word Problems) Posted on 20090416 (12 Comments) 
 Listing words by Jer (20090416 13:48:14) 
Under Way to minimum and maximum (in Just Math) Posted on 20090408 (4 Comments) 
 analytic solution by Jer (20090408 14:23:14) 
Under Composite Total (in Numbers) Posted on 20090331 (2 Comments) 
 solution by Jer (20090331 10:58:13) 
Under Derivative chains. (in Calculus) Posted on 20090329 (6 Comments) 
 Keep trying by Jer (20090402 13:35:30) 
Under Dicey numbers (in Numbers) Posted on 20090327 (6 Comments) 
 Got too big by Jer (20090327 13:18:45) 
 A starting observation. by Jer (20090327 12:56:37) 
Under Making integer an expression (in Just Math) Posted on 20090320 (12 Comments) 
 solution by Jer (20090320 13:22:09) 
Under Exponent Crossed Power (in Just Math) Posted on 20090318 (10 Comments) 
 seemed like it would work by Jer (20090318 13:06:25) 
Under Integer Side Lengths (in Just Math) Posted on 20090305 (8 Comments) 
 re: To Jer and a Confirmation by Jer (20090306 13:24:51) 
 re: Geometric solution! by Jer (20090306 13:15:03) 
 Different solution by Jer (20090305 14:02:01) 
Under Factorials to Squares (in Numbers) Posted on 20090225 (3 Comments) 
 Integer sequence for n! +1 = p^2 (help) by Jer (20090226 14:55:52) 
Under super powerful pandigitals (in Numbers) Posted on 20090224 (7 Comments) 
 An uninteresting property. by Jer (20090224 13:59:23) 
Under Curious Consecutive Cyphers II (in Just Math) Posted on 20090223 (7 Comments) 
 Complete Analytic Solution by Jer (20090224 14:23:54) 
Under Pennies, Dimes, and Quarters (in Numbers) Posted on 20090217 (10 Comments) 
 On the generalization by Jer (20090217 14:39:33) 
Under NonMultiples (in Numbers) Posted on 20090210 (3 Comments) 
 smallish by Jer (20090210 15:16:24) 
Under Why, it's elementary my dear 74851687! (in Riddles) Posted on 20090204 (10 Comments) 
 Got it. by Jer (20090209 14:43:35) 
Under Square And Intersection (in Geometry) Posted on 20071213 (3 Comments) 
 Analytic by Jer (20071214 14:26:19) 
Under Water Cocoon  Defying Newton (in Science) Posted on 20071209 (10 Comments) 
 Ideas by Jer (20071210 10:47:30) 
Under Cutting a Rectangle (in Shapes) Posted on 20071207 (8 Comments) 
 re(3): Solution missed some by Jer (20071207 16:35:59) 
 re: Solution missed some by Jer (20071207 14:02:25) 
Under Linear and quadratic (in Calculus) Posted on 20071023 (9 Comments) 
 My 3 solutions. by Jer (20071024 08:31:53) 
Under Laser Puzzle (in General) Posted on 20071022 (9 Comments) 
 Finally got to try it... by Jer (20071022 11:13:17) 
Under Mixing Meters, Yards and Months (in Numbers) Posted on 20071004 (8 Comments) 
 Improvement on brute force? by Jer (20071004 15:26:36) 
Under Convex Quadrilateral And Intersection (in Geometry) Posted on 20071003 (8 Comments) 
 Harder than it looks by Jer (20071003 10:53:09) 
Under Rationalizing Decimals (in Numbers) Posted on 20070926 (8 Comments) 
 How about the numerator? by Jer (20070926 11:05:27) 
Under Getting Quadratic With Two Digits (in Numbers) Posted on 20070907 (2 Comments) 
 By program (spoiler) by Jer (20070907 10:53:39) 
Under Take The Midpoints, Get Equilateral? (in Geometry) Posted on 20070801 (4 Comments) 
 re: answerbut not solution by Jer (20070801 22:59:53) 
Under 4,4,4,4.... (in Sequences) Posted on 20070731 (8 Comments) 
 Assumed there is a trick by Jer (20070801 17:09:28) 
Under Spies Like Us (in General) Posted on 20070730 (3 Comments) 
 Some thoughts by Jer (20070730 16:55:43) 
Under Numbered Cards (in Probability) Posted on 20070723 (13 Comments) 
 re: Some starting thoughts by Jer (20070723 20:34:51) 
Under A problem on factors (in Just Math) Posted on 20070716 (2 Comments) 
 Part 1 by Jer (20070716 10:57:36) 
Under Sum Three Factorials, Get Exponent (in Numbers) Posted on 20070703 (8 Comments) 
 Full solution by Jer (20070703 12:05:30) 
Under The Pace of the Race (in Probability) Posted on 20070619 (4 Comments) 
 Part 1 for more players by Jer (20070622 19:52:03) 
 Part 1 for 1 player by Jer (20070622 19:41:05) 
Under From Minus One to Plus One (in Numbers) Posted on 20070613 (6 Comments) 
 general solution for even by Jer (20070614 14:22:27) 
 re: computer solution by Jer (20070614 09:05:22) 
Under Equal Maxes (in Calculus) Posted on 20070612 (6 Comments) 
 Too simple? by Jer (20070612 11:46:03) 
Under Triple Convergence (in Algorithms) Posted on 20070608 (1 Comments) 
 Cosine. No proofs. by Jer (20070611 12:46:43) 
Under Square in a Sector (in Geometry) Posted on 20070606 (5 Comments) 
 Solution by Jer (20070607 12:06:23) 
Under Face up Poker (in Games) Posted on 20070604 (8 Comments) 
 Can you do better than tie? by Jer (20070604 12:31:14) 
Under Subtle Summed Squares (in Numbers) Posted on 20070518 (6 Comments) 
 re: Not so fast! by Jer (20070521 12:26:28) 
 Solution by Jer (20070518 13:03:28) 
Under Falling through the floor (in Probability) Posted on 20070518 (4 Comments) 
 re: solutions for first three by Jer (20070518 12:54:48) 
Under Consecutive Integer Series (in Numbers) Posted on 20070514 (12 Comments) 
 Full expicit formula by Jer (20070515 12:07:13) 
 Better but worse by Jer (20070514 15:36:15) 
Under Magic trick (in General) Posted on 20070511 (51 Comments) 
 A new approach by Jer (20070514 12:59:05) 
 A start by Jer (20070511 13:20:12) 
Under TetraCubes (in Shapes) Posted on 20070508 (2 Comments) 
 Found one by Jer (20070509 12:25:58) 
Under Sum Squared Divisors, Get Number (in Numbers) Posted on 20070503 (6 Comments) 
 One number that works by Jer (20070503 13:19:49) 
Under A Parallelogram Puzzle (in Geometry) Posted on 20070501 (5 Comments) 
 Harder solution by Jer (20070501 12:13:28) 
Under Well Balanced Letter: E (in Shapes) Posted on 20070430 (4 Comments) 
 re: If ... by Jer (20070430 11:59:04) 
Under Subtract Products, Get Identity? (in Just Math) Posted on 20070411 (3 Comments) 
 Solution and a variant by Jer (20070411 13:36:30) 
Under Fast clock, slow clock (in Riddles) Posted on 20070411 (16 Comments) 
 Even more far fetched by Jer (20070411 12:16:42) 
Under Sum the squares, get factorial (in Numbers) Posted on 20070403 (2 Comments) 
 Some insights by Jer (20070404 12:10:54) 
Under Paint it black (in Probability) Posted on 20070402 (9 Comments) 
 Not likely by Jer (20070402 12:24:25) 
Under Chain Reaction (in Logic) Posted on 20070401 (4 Comments) 
 re(2): Solution by Jer (20070402 11:59:59) 
Under A 2547 Puzzle (in Numbers) Posted on 20070329 (4 Comments) 
 My start by Jer (20070330 11:30:41) 
Under More Harmonic Integers (2) (in Numbers) Posted on 20070328 (6 Comments) 
 Partly solved by Jer (20070329 11:24:46) 
Under Differences Do Dozen? (in Numbers) Posted on 20070328 (2 Comments) 
 Dozen by Jer (20070328 07:33:45) 
Under Basic Statistics (in Numbers) Posted on 20070326 (3 Comments) 
 Method by Jer (20070326 11:36:35) 
Under Incongruency (in Geometry) Posted on 20070323 (4 Comments) 
 6 triangles by Jer (20070326 11:28:18) 
Under At Fault Coverage (in Shapes) Posted on 20070322 (9 Comments) 
 re: A counting solution by Jer (20070323 10:46:44) 
Under Basic Factoring (in Just Math) Posted on 20070321 (4 Comments) 
 How's this? (Probable spoiler) by Jer (20070321 11:07:37) 
Under Powersdale To Quicksville (in General) Posted on 20070320 (4 Comments) 
 slightly different solution by Jer (20070321 11:58:01) 
Under Integer coefficients (in Just Math) Posted on 20070313 (3 Comments) 
 Outline of solution by Jer (20070313 09:34:49) 
Under Fair Pairs (in Probability) Posted on 20070305 (5 Comments) 
 Triangles (solution) by Jer (20070305 12:35:26) 
Under Cutting Corners (in Geometry) Posted on 20070227 (20 Comments) 
 re: Corner Cutting Function by Jer (20070301 13:34:11) 
 Links and stuff by Jer (20070228 12:40:52) 
 re: my observations by Jer (20070228 08:32:57) 
Under Special indices (in Just Math) Posted on 20070226 (3 Comments) 
 My solution by Jer (20070226 11:54:34) 
Under Tricky Troublesome Trisection (in Shapes) Posted on 20070219 (9 Comments) 
 3 Origami Ways by Jer (20070219 12:15:52) 
Under Painted Sphere (in Geometry) Posted on 20070213 (9 Comments) 
 Simplify by Jer (20070213 15:41:03) 
Under Connecting the Points (in General) Posted on 20070204 (8 Comments) 
 Picture of Optimized solution by Jer (20070205 12:12:58) 
 Optimized by Jer (20070205 11:56:03) 
Under Internal Triangle Problem (in Geometry) Posted on 20070202 (4 Comments) 
 Nonvector solution by Jer (20070202 12:40:39) 
Under Let's Roll (in Science) Posted on 20070126 (4 Comments) 
 On a roll by Jer (20070129 08:33:25) 
Under Difficulties with hotel rooms (in General) Posted on 20070125 (20 Comments) 
 One of infinitely many ways by Jer (20070125 12:58:46) 
Under Alien Messages (in Science) Posted on 20070123 (4 Comments) 
 re: from general knowledge (spoiler) by Jer (20070124 11:51:48) 
Under Allen's Ambivalent Approximation (in Probability) Posted on 20070111 (5 Comments) 
 He's approximately correct  sort of by Jer (20070111 12:08:13) 
Under Addition sequence (in Sequences) Posted on 20070109 (5 Comments) 
 next few terms. (No spoiler) by Jer (20070109 13:02:12) 
Under A 2007 Problem (in Just Math) Posted on 20070104 (2 Comments) 
 Only positive numbers. Don't ask me to actually find them. by Jer (20070105 13:33:38) 
Under An Atypical Product Problem (in Just Math) Posted on 20070103 (5 Comments) 
 Solutions by Jer (20070103 11:32:30) 
Under Six hundred coins (in Probability) Posted on 20061222 (12 Comments) 
 re(2): I might think you cheated. by Jer (20061222 15:03:08) 
 I might think you cheated. by Jer (20061222 11:42:40) 
Under No Cigar (in Numbers) Posted on 20061219 (10 Comments) 
 OOO wins so far by Jer (20061219 12:31:05) 
 re: Closer still? Even better thanks to OOO by Jer (20061219 11:51:16) 
 re: Closer still? Even better thanks to OOO by Jer (20061219 11:51:10) 
 Closer still? by Jer (20061219 11:43:33) 
Under The Game (in Paradoxes) Posted on 20061214 (14 Comments) 
 Possible way to win by Jer (20061214 11:07:06) 
Under Row on Row (in General) Posted on 20061211 (10 Comments) 
 No ambiguity solution for part 1 by Jer (20061212 10:41:22) 
Under Sum crazy dice (in Probability) Posted on 20061130 (8 Comments) 
 Part c) clarified. by Jer (20061201 10:56:36) 
Under Horoscope Hijinks I (in General) Posted on 20061128 (7 Comments) 
 Smaller Zodiacs by Jer (20061128 15:11:31) 
Under Angle Trisection (in Geometry) Posted on 20061109 (6 Comments) 
 re: 'Dis Proof. The mistake by Jer (20061110 10:46:20) 
Under Geometric Integers (in Just Math) Posted on 20061109 (6 Comments) 
 re: doing something wrong? by Jer (20061110 14:31:11) 
 re: doing something wrong? by Jer (20061110 14:31:11) 
 doing something wrong? by Jer (20061109 11:04:09) 
Under 4gon Probability (in Probability) Posted on 20061103 (2 Comments) 
 Part 1 is simpler. by Jer (20061103 11:37:43) 
Under Shrink needed (in Algorithms) Posted on 20061018 (26 Comments) 
 re(2): Ideas by Jer (20061019 11:26:18) 
 Ideas by Jer (20061018 12:04:55) 
Under Radioactive Coins (in Weights and Scales) Posted on 20061017 (18 Comments) 
 Not opimum: 48 by Jer (20061019 11:44:36) 
Under Three Periodical Questions (in Numbers) Posted on 20061016 (4 Comments) 
 What is 'pure'? (and part 1 & 2)) by Jer (20061016 11:09:06) 
Under The digits and square numbers (in Numbers) Posted on 20061012 (3 Comments) 
 re: computer solution (spoiler)  Observation by Jer (20061013 07:30:37) 
Under Two Mirrors (in Geometry) Posted on 20061008 (4 Comments) 
 To start by Jer (20061010 11:36:40) 
Under Those infinite small steps (in Just Math) Posted on 20061003 (8 Comments) 
 re: One proof out of many by Jer (20061003 11:00:20) 
Under A rational number problem (in Numbers) Posted on 20061002 (12 Comments) 
 re(2): Got it by Jer (20061003 07:32:48) 
 Got it by Jer (20061002 14:35:17) 
Under Corker (in Science) Posted on 20061002 (14 Comments) 
 re(2): Cheerios  bewilderment by Jer (20061003 11:10:48) 
 I knew I had seen it recently by Jer (20061002 11:26:30) 
 Cheerios by Jer (20061002 10:50:49) 
Under Margana (in Word Problems) Posted on 20060927 (7 Comments) 
 But which is the best? by Jer (20060927 11:47:08) 
Under Repeating decimals (in Numbers) Posted on 20060925 (11 Comments) 
 re: General solution by Jer (20060926 11:17:03) 
 re(2): computer exploration by Jer (20060925 11:46:38) 
Under Can you match them up? (in Just Math) Posted on 20060921 (6 Comments) 
 re: Solutions 2 to 4 I'm not sure by Jer (20060921 20:28:18) 
Under compoundwordplay (in Word Problems) Posted on 20060920 (5 Comments) 
 re: a solution (not bad) by Jer (20060921 11:22:16) 
Under Paint Job Pro (in Shapes) Posted on 20060919 (2 Comments) 
 No Subject by Jer (20060919 12:38:19) 
Under Cutting planes with polygons (in Shapes) Posted on 20060906 (16 Comments) 
 re: Who dares: Not I by Jer (20060911 11:20:23) 
 I agree. Full explanation. by Jer (20060907 11:46:34) 
Under These are no fractions, are they? (in Numbers) Posted on 20060905 (15 Comments) 
 My thought by Jer (20060906 07:27:50) 
Under The gardener's woe is continuous (in Just Math) Posted on 20060830 (5 Comments) 
 re: Converge/Diverge by Jer (20060831 14:33:05) 
Under Summing or Multiplying (in Numbers) Posted on 20060821 (20 Comments) 
 Cursory examination by Jer (20060821 10:03:34) 
Under So how small is it then? (in Numbers) Posted on 20060809 (15 Comments) 
 re(2): This is a notation trick by Jer (20060926 11:27:45) 
 re: different solution by Jer (20060811 09:41:18) 
Under Vital Vegetal Vibes (in General) Posted on 20060807 (11 Comments) 
 Yuck & Yum by Jer (20060807 09:34:30) 
Under Various Valleys, More Mountains (in Shapes) Posted on 20060726 (7 Comments) 
 Some possibly enlightening sites by Jer (20060727 14:51:04) 
Under 10 Ultimate cribbage hands (in Games) Posted on 20060718 (4 Comments) 
 re: Did I just peg out? by Jer (20060719 09:20:56) 
Under Rising water levels (in Shapes) Posted on 20060626 (26 Comments) 
 re: Worth a vote  calculusless by Jer (20060628 09:53:43) 
Under Gardener's Woe (in Just Math) Posted on 20060624 (26 Comments) 
 re(3): Nicely done  now through 7 seedlings by Jer (20060626 18:58:23) 
 Nicely done by Jer (20060626 09:50:11) 
 re: My solution for 5 seeds by Jer (20060625 11:26:50) 
 Clarifications and stuff by Jer (20060624 17:01:57) 
Under A case of misguided sheep. (in Riddles) Posted on 20060623 (22 Comments) 
 re: first real six string by Jer (20060624 17:19:53) 
Under Three Intercepts (in Just Math) Posted on 20060619 (7 Comments) 
 re: The Old Kitchen Sink by Jer (20060620 14:50:08) 
Under The Ultimate Cribbage Hand (in Games) Posted on 20060607 (21 Comments) 
 re: Why is J5555 only 29 pts? by Jer (20060607 17:55:16) 
Under Trading Places 2D (in Algorithms) Posted on 20060607 (3 Comments) 
 Solution by Jer (20060607 11:57:32) 
Under Pegless Painting Plummets! (2) (in General) Posted on 20060602 (6 Comments) 
 This works by Jer (20060605 13:16:59) 
Under Math Rebuses (Rebi?) (in Word Problems) Posted on 20060601 (8 Comments) 
 The one that isn't right by Jer (20060601 12:49:52) 
Under Multicolored Coins (in Probability) Posted on 20060524 (10 Comments) 
 Solution, no expl. by Jer (20060524 09:09:39) 
Under Game Over! (in Probability) Posted on 20060522 (14 Comments) 
 re: solution for question 2 by Jer (20060522 13:15:44) 
Under Least L.C.M. (in Just Math) Posted on 20060519 (5 Comments) 
 Second try (probably the solution) by Jer (20060519 12:46:36) 
 First try by Jer (20060519 12:40:24) 
Under Cubes in a tin (in Shapes) Posted on 20060515 (23 Comments) 
 re: This should be the question by Jer (20060516 12:30:02) 
Under A 'well known' Sequence (in Sequences) Posted on 20060511 (6 Comments) 
 re: A wild guess by Jer (20060525 12:30:45) 
 Hint by Jer (20060518 12:16:35) 
Under Garden Path (in Geometry) Posted on 20060510 (11 Comments) 
 re: Solution I guess by Jer (20060510 13:25:05) 
Under Squares in a cross (in General) Posted on 20060510 (5 Comments) 
 Minimum by Jer (20060511 12:24:07) 
Under Repeated Root Research (in Calculus) Posted on 20060508 (6 Comments) 
 Complex not possible by Jer (20060509 13:14:57) 
Under Gravity experiment (in General) Posted on 20060504 (29 Comments) 
 Possibly right solution, partial expl. by Jer (20060504 14:09:26) 
Under Square = half itself? (in Shapes) Posted on 20060504 (19 Comments) 
 re: Another alternative by Jer (20060504 12:32:39) 
 re: alternatives by Jer (20060504 12:31:52) 
Under View from Perplexus Tower (in General) Posted on 20060427 (9 Comments) 
 The rest of them. by Jer (20060427 13:06:05) 
 First part, alternate expl. by Jer (20060427 12:55:14) 
Under 3 in a row = bad (in General) Posted on 20060426 (13 Comments) 
 re: Minimum and Maximum by Jer (20060427 13:23:57) 
Under They do it with mirrors (in Science) Posted on 20060426 (8 Comments) 
 re: Not without help by Jer (20060426 13:19:19) 
Under Three from Nine (in Probability) Posted on 20060425 (12 Comments) 
 re(3): Partial Solution by Jer (20060425 13:40:54) 
 re: Partial Solution by Jer (20060425 13:08:44) 
 Probable solution by Jer (20060425 13:04:13) 
Under A Composite Determination Problem (in Just Math) Posted on 20060423 (14 Comments) 
 does this make sense? by Jer (20060423 13:43:24) 
 re: A first stab at the solution by Jer (20060423 13:21:48) 
Under Padre (in Famous Riddles) Posted on 20060419 (27 Comments) 
 re: Solution (with computer verification) by Jer (20060419 21:17:02) 
Under Circular Jogging Track Problem 2 (in General) Posted on 20060413 (6 Comments) 
 re(2): solution by Jer (20060414 07:41:47) 
 Solution, no explanation by Jer (20060413 14:10:13) 
Under Circular Jogging Track Problem (in General) Posted on 20060412 (9 Comments) 
 Near miss on day two by Jer (20060413 13:38:00) 
Under Two fours (or fewer?) (in Numbers) Posted on 20060407 (15 Comments) 
 Unreliable use of reliable source by Jer (20060411 12:44:22) 
 re: Second Part by Jer (20060411 12:26:36) 
 re: Reliable source by Jer (20060410 15:59:32) 
 Reliable source by Jer (20060410 15:50:32) 
Under It's in the Cards (in General) Posted on 20060406 (6 Comments) 
 What kind of game? by Jer (20060406 11:38:53) 
Under Wreck out! (in Algorithms) Posted on 20060403 (6 Comments) 
 I think I got it. by Jer (20060403 13:24:26) 
Under Integer Solutions (in Numbers) Posted on 20060330 (16 Comments) 
 I think I got it. by Jer (20060330 14:25:56) 
Under Rotating slopes (in Just Math) Posted on 20060321 (5 Comments) 
 re: Solution  how do you use it? by Jer (20060322 14:25:41) 
Under Pythagorean Chain (in Shapes) Posted on 20060320 (18 Comments) 
 re(2): Is 10000 too big? Is 1000 too big? by Jer (20060321 13:16:29) 
 Is 10000 too big? by Jer (20060321 07:42:36) 
Under A Quintic Problem (in Just Math) Posted on 20060315 (7 Comments) 
 re: Small steps (another step) by Jer (20060316 12:53:05) 
Under Discover U.S. (in Cryptography) Posted on 20060314 (11 Comments) 
 re(3): Solution (again) by Jer (20060314 14:41:44) 
Under and (in Word Problems) Posted on 20060313 (26 Comments) 
 re(2): The coordinating conjunctions by Jer (20060313 13:53:35) 
 re(2): The coordinating conjunctions by Jer (20060313 13:52:27) 
 re(2): The coordinating conjunctions by Jer (20060313 13:52:25) 
 re(2): The coordinating conjunctions by Jer (20060313 13:52:20) 
 re(2): The coordinating conjunctions by Jer (20060313 13:51:23) 
Under Cross cut (in Shapes) Posted on 20060306 (18 Comments) 
 re(2): 4 pieces minus epsilon by Jer (20060308 12:33:47) 
 4 pieces minus epsilon by Jer (20060307 15:32:14) 
 8 pc. similar solution by Jer (20060306 15:08:33) 
Under Common Link (in Word Problems) Posted on 20060303 (7 Comments) 
 my guess  possibly close by Jer (20060303 12:41:54) 
Under Factorial sequence (in Just Math) Posted on 20060302 (2 Comments) 
 Proof/Explanation by Jer (20060302 12:48:08) 
Under The Gardener and the Cook (in Tricks) Posted on 20060301 (29 Comments) 
 re(2): April 1, 1900  Sunday by Jer (20060302 13:11:02) 
Under Splitting shapes (in Shapes) Posted on 20060216 (9 Comments) 
 re(3): All but 5 by Jer (20060316 13:12:10) 
 4 region solutions by Jer (20060217 12:49:34) 
 going further by Jer (20060216 13:33:42) 
 Pictures of solutions by Jer (20060216 13:19:09) 
Under Expect the unexpected (in Paradoxes) Posted on 20060215 (32 Comments) 
 well... by Jer (20060215 12:34:43) 
Under Bouncy Bouncy part 2 (in Calculus) Posted on 20060210 (14 Comments) 
 re: Some Thoughts by Jer (20060214 12:32:50) 
 and other thing... by Jer (20060213 12:39:34) 
 Incidentally by Jer (20060213 12:34:17) 
Under Bouncy Bouncy Part 1 (in Geometry) Posted on 20060208 (10 Comments) 
 your solutions are all to complicated by Jer (20060209 07:36:55) 
Under Scrabble® Scramble (in Games) Posted on 20060203 (7 Comments) 
 re: Any better set of letters? (suggestion) by Jer (20060203 14:16:06) 
Under Sequence o' Fun (in Sequences) Posted on 20060125 (4 Comments) 
 Smaller than I thought... (spoiler) by Jer (20060125 14:55:47) 
Under A Capital Idea! (in Sequences) Posted on 20060124 (12 Comments) 
 Is that really it? by Jer (20060124 14:30:55) 
Under Odometer Sum of the Digits (in Numbers) Posted on 20060119 (11 Comments) 
 Best I could get playing with it by Jer (20060119 12:39:42) 
Under A cute little angle to find (in Geometry) Posted on 20060118 (7 Comments) 
 Source of this problem by Jer (20060119 07:39:25) 
Under Circle's Limit (in Calculus) Posted on 20060113 (4 Comments) 
 I think I proved it without calculus. by Jer (20060113 10:29:30) 
Under Something in common (in General) Posted on 20060111 (5 Comments) 
 If I got it it doesn't make much sense... by Jer (20060112 14:38:47) 
 re: Hints by Jer (20060112 14:30:28) 
Under Stupid number trick III (in Numbers) Posted on 20060111 (11 Comments) 
 re(2): Fractals & a hard extension by Jer (20060112 07:41:19) 
 Fractals & a hard extension by Jer (20060111 14:26:40) 
Under Two squares (in Shapes) Posted on 20060105 (7 Comments) 
 re: Solution by Jer (20060105 14:35:58) 
Under Two spheres in a tank (in Science) Posted on 20060105 (11 Comments) 
 about sugar by Jer (20060110 12:46:03) 
Under What number? (in Tricks) Posted on 20051216 (6 Comments) 
 My thought by Jer (20051219 09:28:17) 
Under Only briefly continuous (in Calculus) Posted on 20051215 (11 Comments) 
 Nonpiecewise by Jer (20051215 14:34:42) 
Under Equal Angles (in Geometry) Posted on 20051214 (4 Comments) 
 re: Is there an easier way? ??? by Jer (20051214 14:28:39) 
Under Boiling Impossibilities (in Science) Posted on 20051206 (41 Comments) 
 re(4): The Answer by Jer (20051215 14:45:30) 
 so far no good by Jer (20051206 10:42:47) 
