fixatan3alleg4

Usage

Overview

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:

   fixed result;
   /* Sets `result' to binary angle 13. */
   result = fixatan(ftofix(0.326));

Return value

Returns the inverse tangent of a fixed point value, measured as a fixed point binary format angle.