Skip site navigation (1)Skip section navigation (2)

FreeBSD Manual Pages

  
 
  

home | help 
al_fixcos(3)		   Library Functions Manual		  al_fixcos(3)

NAME
       al_fixcos - Allegro 5 API

SYNOPSIS
	      #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:

	      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  as  a	 fixed
       point value.

Allegro	reference manual					  al_fixcos(3)

Want to link to this manual page? Use this URL:
<https://man.freebsd.org/cgi/man.cgi?query=al_fixcos&sektion=3&manpath=FreeBSD+Ports+14.3.quarterly>

home | help