[comp.sys.next] Trigonometric Functions and Math Library

erik@zeus.uucp (Erik Schumacher) (03/03/91)

I wonder if anyone has made some effort to speed up the 68040 performance
with respect to the evaluation of trigonometric functions.  As far as I 
understand, the 040 does not have any trig. fctns 'build in', and therefore
the normal routines from the math library are called.  A friend who had 
similar problems on the sun, recommended to write a 040 specific routine
for each trig. fctn., and to generate a inline function at each function 
call.  Because trig. fctns. are essential for many programs, and because
the normal evaluation is really slow compared to the overall speed of the 
040, I guess there is a good incentive to do some tune up.  - Only that I
don't know enough to do it .....