.TH "al_fixatan(3alleg5) Allegro reference manual" "" "" "" ""
.SH NAME
.PP
al_fixatan \- Allegro 5 API
.SH SYNOPSIS
.IP
.nf
\f[C]
#include\ <allegro5/allegro.h>

al_fixed\ al_fixatan(al_fixed\ x)
\f[]
.fi
.SH DESCRIPTION
.PP
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 \f[C]x\f[].
.PP
Example:
.IP
.nf
\f[C]
\ \ \ \ al_fixed\ result;

\ \ \ \ /*\ Sets\ result\ to\ binary\ angle\ 13.\ */
\ \ \ \ result\ =\ al_fixatan(al_ftofix(0.326));
\f[]
.fi
.SH RETURN VALUE
.PP
Returns the inverse tangent of a fixed point value, measured as a fixed
point binary format angle.