tan
(PHP 3, 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
Examples
Example 1. tan() example
<?php
echo tan(M_PI_4); // 1
?>
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