php man page for deg2rad

DEG2RAD(3)								 1								DEG2RAD(3)

deg2rad - Converts the number in degrees to the radian equivalent

SYNOPSIS
       float deg2rad (float  $number)

DESCRIPTION
	This function converts $number from degrees to the radian equivalent.

PARAMETERS
	      o $number
		- Angular value in degrees

RETURN VALUES
	The radian equivalent of $number

EXAMPLES
       Example #1

	      deg2rad(3) example

	      <?php

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

	      ?>

SEE ALSO
       rad2deg(3).

PHP Documentation Group 														DEG2RAD(3)