fixsin (3) Linux Manual Page

fixsin – Fixed point sine of binary angles. Allegro game programming library.

Synopsis

#include <allegro.h>

fixed fixsin(fixed x);

Description

This function finds the sine of a value using a lookup table. The input value must be a fixed point binary angle. Example:

 fixed angle;

 int result;

 /* Set the binary angle to 90 degrees. */

 angle = itofix(64);

 /* The sine of 90 degrees is one. */

 result = fixtoi(fixsin(angle));

 ASSERT(result == 1);

Return Value

Returns the sine of a fixed point binary format angle. The return value will be in radians.

See Also

, ex12bit(3), ex3buf(3), exblend(3), excustom(3), exspline(3), exupdate(3)