http://www.realitypixels.com/turk/computergraphics/FixedPointTrigonometry.pdf http://www.realitypixels.com/turk/computergraphics/FixedPoin... cordic beautifull

http://www.realitypixels.com/turk/computergraphics/FixedPointTrigonometry.pdf http://www.realitypixels.com/turk/computergraphics/FixedPoin... cordic beautifully explained; i have used this approach on fixed point dsp processors in another life; its simplicity, and elegance is beautiful (on controllers with no fp)