

#include <nitro/fx/fx_trig.h>
u16 FX_AcosIdx(fx32 x);
| x | fx32-format fixed-point decimal. |
Arccosine of x
This determines the arccosine of 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 SinCos table is referenced. The argument must take a value between -1 and 1.
FX_Atan, FX_Atan2, FX_AtanIdx, FX_Atan2Idx, FX_AsinIdx
2007/01/18 Initial version.
CONFIDENTIAL