All about flooble | fun stuff | Get a free chatterbox | Free JavaScript | Avatars    
perplexus dot info

Home > Numbers > Sequences
Digital Combo-Lock (Posted on 2010-12-30) Difficulty: 4 of 5

No Solution Yet Submitted by brianjn    
No Rating

Comments: ( Back to comment list | You must be logged in to post comments.)
a method | Comment 2 of 6 |

Although this is undoubtedly not what is being asked for:

one could take any sequence of 10 digits, x0 to x9, and consider them points in a coordinate system:
(0,x0), (1,x1), ... , (9,x9)
and then solve for a polynomial of appropriate degree (one more than the number of changes of direction) to find a curve that goes through all 10 points.


  Posted by Larry on 2010-12-30 12:04:48
Please log in:
Login:
Password:
Remember me:
Sign up! | Forgot password


Search:
Search body:
Forums (0)
Newest Problems
Random Problem
FAQ | About This Site
Site Statistics
New Comments (9)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On

Chatterbox:
Copyright © 2002 - 2024 by Animus Pactum Consulting. All rights reserved. Privacy Information