deg2rad

(PHP 4, PHP 5)

deg2rad — Converts the number in degrees to the radian equivalent

float deg2rad ( float $number )

This function converts number from degrees to the radian equivalent.

The radian equivalent of number

Example #1 deg2rad() example


<?php

echo deg2rad(45); // 0.785398163397
var_dump(deg2rad(45) === M_PI_4); // bool(true)

?>

Коментарии


Never use deg2rad() in loops, use $rad = ($deg * M_PI / 180) instead which is faster!

2009-03-13 09:18:07