You can use the digits 1,2,and 3 once only and any mathematical symbols you are aware of, but no symbol is to be used more than once. The challenge is to see if you can make the smallest positive number.
Special rules: You cannot use Euler's number or pi or infinity.
Special thanks to: Rhonda Wendel for Make the most of these digits and for the problem text which was slightly altered.
A very small number is epsilon, frequently used in analysis when derivatives are calculated. Epsilon is equal to 3 mirrored along a vertical line. Epsilon/21 is even a bit smaller.

Posted by Blondie
on 20061124 07:40:57 