User:Professordad
Revision as of 18:48, 10 November 2011 by Professordad (talk | contribs)
Professordad is currently a rather active user on Art of Problem Solving.
Recent Stupid Mistakes:
2011 Mandelbrot Round 1: There are 6 points with integer coordinates from (1,1)--(2,1)--(3,1)--(4,1)--(4,2)--(4,3)--(4,4)
