227 reputation
210
bio website xahlee.org
location Mountain View, CA
age 46
visits member for 3 years, 8 months
seen Dec 16 '13 at 22:58

Expert in Mathematica, perl, php, emacs lisp, unix sys admin, web app dev, geometry visualization programing, lsl (second life scripting).

for detail, please visit XahLee.org