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.\" Automatically generated by Pandoc 1.19.2.4
.\"
.TH "al_fixatan" "3" "" "Allegro reference manual" ""
.hy
.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 must be a fixed point value.
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.
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