cos
(PHP 4, PHP 5, PHP 7)
cos — Cosine
Descrierea
cos
( float
$num
) : float
cos() returns the cosine of the num
parameter. The num parameter is in radians.
Parametri
-
num -
An angle in radians
Valorile întoarse
The cosine of num
Exemple
Example #1 cos() example
<?php
echo cos(M_PI); // -1
?>
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