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Man Pages


Manual Reference Pages  -  AL_FIXCOS (3)

NAME

al_fixcos - Allegro 5 API

CONTENTS

Synopsis
Description
Return Value

SYNOPSIS

C]
#include <allegro5/allegro.h>

al_fixed al_fixcos(al_fixed x); ]

DESCRIPTION

This function finds the cosine of a value using a lookup table. The input value must be a fixed point binary angle.

Example:
C]
    al_fixed angle;
    float result;

/* Set the binary angle to 45 degrees. */ angle = al_itofix(32);

/* The cosine of 45 degrees is about 0.7071. */ result = al_fixtof(al_fixcos(angle)); assert(result > 0.7 && result < 0.71); ]

RETURN VALUE

Returns the cosine of a fixed point binary format angle. The return value will be in radians.

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Allegro reference manual AL_FIXCOS (3)

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