Apparently, this user prefers to keep an air of mystery about them.
26 what is sine of a real number Jul 14
13 Why does the derivative of sine only work for radians? Jun 25 '15
9 Diameter of set in metric space Jul 18
5 What decimal is between 0.5 and 0.625 Sep 29 '15
4 Let $R$ be an equivalence relation on a set $A$, $a,b \in A$. Prove $[a] = [b]$ iff $aRb$. Jun 18 '13