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cos

(PHP 4, PHP 5, PHP 7)

Cosine

float cos ( float $arg )

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

Parameters:

arg

An angle in radians

Returns:

The cosine of arg

Examples:

cos() example

<?php

echo cos(M_PI); // -1

?>

See also:

Links:

http://php.net/manual/en/function.cos.php

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2016-02-24 16:02:27

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