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PHP Manual [tan]

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PHP Manual || Math Functions

(PHP 4, PHP 5, PHP 7)

tanTangent

Description

tan ( float $arg ) : float

tan() returns the tangent of the arg parameter. The arg parameter is in radians.

Parameters

arg

The argument to process in radians

Return Values

The tangent of arg

Examples

Example #1 tan() example

<?php

echo tan(M_PI_4); // 1

?>

See Also



PHP Manual || Math Functions