-> It's pretty good. I would look for some way to reduce or eliminate
-> the real division, arctan, and multiplication operations which are
-> all floating point ops. 2*PI and PI/2 are obvious ones, replaced with
-> 6.28 and 1.57.. SGN might also be FP, I forget now.
!!!! I don't think floating-point operations are really avoidable,
especially if you want reasonable accuracy.
Did you learn to program in FORTH? 
                                 dow
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