FX_Atan2Idx

C Specification

#include <nitro/fx/fx_trig.h>

u16 FX_Atan2Idx( fx32 y, fx32 x );

Arguments

y An fx32 format fixed-point decimal.
x An fx32 format fixed-point decimal.

Return Values

Arctangent of y/x

Description

This finds the arctangent of y/x. The results are returned in a u16 format. The units of the result are equal to 1/65536 of a circle (2 π radians). (Example: A right angle would be 16384.) Internally, a table is referenced.

See Also

FX_Atan, FX_Atan2, FX_AtanIdx

Revision History

06/16/2004 Initial version.