I'm the founder of EdgeXL. We're speeding up Excel.
You can reach me at email@example.com.
10 Continuity of a function at an isolated point Dec 27 '10
3 Does infinity and zero really exist? Dec 29 '10
2 What are the ramifications of the fact that the first homotopy group can be non-commutative, whilst the higher homotopy groups can't be? Mar 4 '11
2 Hermitian operators and commutators May 15 '11
1 Topic for a high school-level math elective? Jan 8 '11