I've written up my implementations of the transverse Mercator projection
from GeographicLib. For a preprint see:
http://arxiv.org/abs/1002.1417
Comments welcome!
--Charles
--
Charles Karney <ckarney at sarnoff.com>
Sarnoff Corporation, Princeton, NJ 08543-5300
Tel: +1 609 734 2312
Fax: +1 609 734 2662