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PHP: deg2rad - Manual
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Last updated: Sun, 25 Nov 2007

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deg2rad

(PHP 4, PHP 5)

deg2rad — 度単位の数値をラジアン単位に変換する

説明

float deg2rad ( float $number )

この関数は、number の単位を度からラジアンに変換します。

パラメータ

number

度で表した角度。

返り値

number と同等な値をラジアンで表したものを返します。

Example#1 deg2rad() の例

<?php

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

?>

参考



add a note add a note User Contributed Notes
deg2rad
john dot navratil at sbcglobal dot net
12-Feb-2007 12:32
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.

exp" width="11" height="7"/> <decoct
Last updated: Sun, 25 Nov 2007
 
 
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