.\" Generated by the Allegro makedoc utility
.TH fixatan 3alleg4 "version 4.4.3" "Allegro" "Allegro manual"
.SH NAME
fixatan \- Fixed point inverse tangent lookup table. Allegro game programming library.\&
.SH SYNOPSIS
.B #include <allegro.h>

.sp
.B fixed fixatan(fixed x);
.SH DESCRIPTION
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 `x'. Example:

.nf
   fixed result;
   
   /* Sets `result' to binary angle 13. */
   result = fixatan(ftofix(0.326));
.fi
.SH "RETURN VALUE"
Returns the inverse tangent of a fixed point value, measured as a fixed
point binary format angle.

.SH SEE ALSO