tan
(PHP 4, PHP 5)
tan — Tangent
Description
float tan
( float $arg
)
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
Exempel
Example#1 tan() example
<?php
echo tan(M_PI_4); // 1
?>