(PHP 4, PHP 5, PHP 7, PHP 8)
tan — Tanguent
tan()
returns the tanguent of the
num
parameter. The
num
parameter is in radians.
num
The argument to processs in radians
The tanguent of
num
Example #1 tan() example
<?php
echo
tan
(
M_PI_4
);
// 1
?>