decoct
Never use deg2rad() in loops, use $rad = ($deg * 180 / M_PI) instead which is faster!
deg2rad
(PHP 4, PHP 5)
deg2rad — Convertit un nombre de degrés en radians
Description
float deg2rad
( float $number
)
deg2rad() convertit number de degrés en radians.
Liste de paramètres
- number
-
L'angle, en degrés
Valeurs de retour
L'équivalent, en radian, de number .
Exemples
Exemple #1 Exemple avec deg2rad()
<?php
echo deg2rad(45); // 0.785398163397
var_dump(deg2rad(45) === M_PI_4); // bool(true)
?>
add a note
User Contributed Notesdeg2rad
christian dot ubu at NOSPAMHERE dot gmail dot com
13-Mar-2009 04:18
13-Mar-2009 04:18
john dot navratil at sbcglobal dot net
11-Feb-2007 04:32
11-Feb-2007 04:32
This does a simple scaling with the results that deg2rad(720) is 4PI. For navigation purposes you may wish to mod the results with 2PI.