# rad2deg

(PHP 4, PHP 5)

rad2deg — Converts the radian number to the equivalent number in degrees

### Description

float rad2deg ( float `$number` )

This function converts `number` from radian to degrees.

### Parameters

`number`

  A radian value

### Return Values

The equivalent of `number` in degrees

### Examples

Example#1 rad2deg() example

`<?php
echo rad2deg(M_PI_4); // 45
?>`

### See Also

- deg2rad()