Joel A. Christophel
Apparently, this user prefers to keep an air of mystery about them.
2 Functions and derivatives using limits sep 30 '13
2 Rules governing overline usage in Roman numerals oct 28 '13
1 Normal distribution without standard deviation given may 30 '14
1 Prove that $gcd(a, b) = gcd(b, a-b)$ oct 24