Apparently, this user prefers to keep an air of mystery about them.
28 Do free online collaborative solution manuals exist? Mar 11 '13
23 Can the chain rule be relaxed to allow one of the functions to not be defined on an open set? Apr 4 '13
19 What are the main uses of Convex Functions? Aug 8 '13
15 Necessary and sufficient conditions for a polynomial $p$ to satisfy $\|x\|\to\infty\implies p(x)\to\infty$? Oct 9 '13
13 Number of real positive roots of a polynomial? Jul 24 '13
10 Advice: Algebra and category theory for geometry? Dec 29 '13
9 Why are even/odd functions called even/odd? Sep 25 '12