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rad2deg() function in PHP
The rad2deg() function converts radian value to degree value. It Returns the equivalent of radia value val in degrees.
Syntax
rad2deg(val)
Parameters
val − The radian value to be converted into degree.
Return
The rad2deg() function Returns the equivalent of val in degrees.
Example
<?php echo rad2deg(pi()); ?>
Output
180
Example
Let us see another example −
<?php echo rad2deg(pi()/2); ?>
Output
90
Example
Let us see another example −
<?php echo rad2deg(pi()/8); ?>
Output
22.5
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