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 ta‐ ble. The input value must be a fixed point radian. The inverse tan‐ gent 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)[top]
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