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                                    deg2rad

   (PHP 3>= 3.0.4, PHP 4 )
   deg2rad --  Converts the number in degrees to the radian equivalent

Description

   float deg2rad ( float number)

   This function converts number from degrees to the radian equivalent.

   Example 1. deg2rad() example
   <?php
   echo deg2rad(45); // 0.785398163397
   var_dump(deg2rad(45) === M_PI_4); // bool(true)
   ?>

   See also rad2deg().
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