al_fixatan(3)                                                    al_fixatan(3)

NAME
       al_fixatan - Allegro 5 API

SYNOPSIS

              #include <allegro5/allegro.h>

              al_fixed al_fixatan(al_fixed x)


DESCRIPTION
       This function finds the inverse tangent of a value using a lookup
       table.  The input must be a fixed point value.  The inverse tangent is
       the value whose tangent is x.

       Example:


              al_fixed result;

              /* Sets result to binary angle 13. */
              result = al_fixatan(al_ftofix(0.326));


RETURN VALUE
       Returns the inverse tangent of a fixed point value, measured as a fixed
       point binary format angle.

Allegro reference manual                                         al_fixatan(3)