Apparently, this user prefers to keep an air of mystery about them.
10 How accurate is approximating the Earth as a sphere? Jun 7 '13
6 How to calculate the intersection of 2 Circles? Mar 10 '13
6 What Python package to use to calculate midpoint? Apr 22 '13
5 Why is law of cosines more preferable than haversine when calculating distance between two latitude-longitude points? Apr 22 '13
4 What kinds of line segments/edges require high accuracy in a true surface-of-the-ellipsoid representation? Jul 11 '11
4 Calculate distortion outside a UTM zone Sep 1 '12