Hi.
I recall that Mike Betts and Dr. Joe had some good comments on trig functions in this thread:
http://www.chiefdelphi.com/forums/sh...highlight=trig
(named "Edurobot and arrays" from November, in this forum)
For just sin, cos and tan, you might want to make a linear table lookup.
I've downloaded the cmath library from
www.netlib.org/cephes, but I haven't tried it out on the edu rc
Eric