(In reply to Another way - without remembering any irrational logarithms
by Kenny M)
EXCELLENT IDEA, BUT YOU'LL GET MUCH BETTER RESULT.if you make a table of 7^n, n being all negative integers.
I got 11/13 , which is about .001 away from the true value of lg7.
I give you full credit for going in the other direction, still
I did it your way.
Edited on January 23, 2011, 4:47 pm