GoLang cos

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PHP cos

PHP original manual for cos [ show | php.net ]

cos

(PHP 4, PHP 5, PHP 7)

cosCosine

Description

float cos ( float $arg )

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