tan

Tangent

Description

float tan(float $num)

tan returns the tangent of the num parameter. The num parameter is in radians.

Parameters

num: The argument to process in radians

Return Values

The tangent of num

Examples

Example #1 tan example

<?php

echo tan(M_PI_4); // 1

?>

See Also

atan
atan2
sin
cos
tanh
deg2rad