[Mike Bortfeldt]

I've been meaning to post this for about a week or so, but for some reason never seemed to have any time. This is the type of method we have used for the past couple of years for calculating sine & cosine (and arcsine & arccosine). It uses both a lookup table and linear interpolation to determine the approximate value. It utilizes signed shorts rather than floating point to keep the execution speed decent. I’ve only extracted the sine/cosine routines but the documentation shows some other examples of how you could use some of underlying routines to generate your own non-linear functions.

Mike