Fast approximate four quadrant arc-tangent

What does it do?

This module provides a fast approximate 4-quadrant arc tangent function, based on something at dspguru.com. The worst case error is about 4.07 degrees. This is fine for many "where am I" type evaluations in comms. work.

How does it work?

???.

Generated on Sun Sep 27 19:22:11 2009 for libspandsp by  doxygen 1.5.9