Apparently, this user prefers to keep an air of mystery about them.
35 What is the real life use of hyperbola? apr 11 '13
22 Show that $z^6 + 5z^4 - z^3 + 3z$ has at least two real roots given that all roots are distinct. apr 21 '12
20 Approximating $100!$ aug 23
18 Prove that $A+I$ is invertible if $A$ is nilpotent may 3 '12