Apparently, this user prefers to keep an air of mystery about them.
4 How to safely solve a pair of elementary equations in a floating point computing system? Jan 14 '12
3 How to draw a smooth curve through given 2D points. Jan 23 '12
2 Intersections of 2 circles Nov 9 '11
2 The Euclidean norm ||r|| of a rotation Aug 25 '11