fixatan(3alleg4) Allegro manual fixatan(3alleg4)
NAME
fixatan - Fixed point inverse tangent lookup table. Allegro game programming library.
SYNOPSIS
#include <allegro.h>
fixed fixatan(fixed x);
DESCRIPTION
This function finds the inverse tangent of a value using a lookup table. The input value must be a fixed point radian. The inverse tangent
is the value whose tangent is `x'. Example:
fixed result;
/* Sets `result' to binary angle 13. */
result = fixatan(ftofix(0.326));
RETURN VALUE
Returns the inverse tangent of a fixed point value, measured as a fixed point binary format angle.
SEE ALSO
Allegro version 4.4.2 fixatan(3alleg4)
