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[edit] Last updated: Fri, 24 May 2013

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rad2deg

(PHP 4, PHP 5)

rad2deg 将弧度数转换为相应的角度数

说明

float rad2deg ( float $number )

本函数将 number 从弧度转换为角度。

参数

number

一个弧度值

返回值

number 相应的角度数

范例

Example #1 rad2deg() 例子

<?php

echo rad2deg(M_PI_4); // 45

?>

参见



add a note add a note User Contributed Notes rad2deg - [2 notes]
up
1
Anonymous
8 years ago
Definition

<?
function rad2deg($arg) {
 return
$arg*180/pi();
}
?>
up
0
money1109 at gmail dot com
5 years ago
Conversion between grads and degrees

function gon2deg($gon) {
    return ($gon / 400) * 360;
}

function deg2gon($deg) {
    return ($deg / 360) * 400;
}

 
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