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.TH "al_fixatan" "3" "" "Allegro reference manual"
.SH NAME
al_fixatan \- Allegro 5 API
.SH SYNOPSIS
.IP
.EX
#include \f[B]<allegro5/allegro.h>\f[R]

al_fixed al_fixatan(al_fixed x)
.EE
.SH 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 \f[CR]x\f[R].
.PP
Example:
.IP
.EX
al_fixed result;

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