cos

cos

(PHP 3, PHP 4, PHP 5)

cos -- Cosine

Description

float cos ( float arg )

cos() returns the cosine of the arg parameter. The arg parameter is in radians.

Example 1. cos() example

<?php

echo cos(M_PI); // -1

?>

See also: acos(), sin(), tan(), and deg2rad().

© Copyright 2003-2014 www.php-editors.com. The ultimate PHP Editor and PHP IDE site.