Optimize atan2 function #5
Description
atan2 needs optimizing so that it maintains accuracy over the full range of
fixed point numbers while being as fast as Joes implementation (see wiki).
It may be that once tested Joes algorithm is as accurate across the full range,
if this is the case then we can use this implementation.
Original issue reported on code.google.com by [email protected] on 24 Feb 2011 at 1:47