Apparently, this user prefers to keep an air of mystery about them.
14 Why does $n$-time differentiation of product have the same structure as raising sum to $n$th power? Oct 29 '14
14 What does orthogonality mean in function space? Mar 5 '15
9 Are there known pairs of simple numbers equal to huge precision, but not equal strictly? Feb 14 '14
7 Is Minkowski space not a metric space? Oct 14 '13
7 How to show that this integral equals $\frac\pi2$? Dec 21 '13
6 one-dimensional inverse square laws Feb 19 '14