M Mathematics University Colorado, 1996.
He wrote an online puzzle column called Editor Pegg Junior."s Mathematics Games for the Mathematical Association of America during the years 2003-2007. His puzzles have also been used by Will Shortz on the puzzle segment of National Public Radio"s Weekend Edition Sunday. In 2000, he left North America Air Defense to join Wolfram Research, where he collaborated on A New Kind of Science (NKS).
In 2004 he started assisting Eric West. Weisstein at Wolfram MathWorld.
He has made contributions to several hundred MathWorld articles He was one of the chief consultants for Numb3rs.