Please wait while we load your page...

Tools

PHP Manual [cos]

Protect Your Website Today


PHP Manual || Math Functions

(PHP 4, PHP 5, PHP 7)

cosCosine

Description

cos ( float $arg ) : float

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

Parameters

arg

An angle in radians

Return Values

The cosine of arg

Examples

Example #1 cos() example

<?php

echo cos(M_PI); // -1

?>

See Also



PHP Manual || Math Functions