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deg2rad() function in PHP
The deg2rad() function converts degree to radian value. It Returns the radian equivalent of the specified degree value.
Syntax
deg2rad(num)
Parameters
num − The degree value to be converted to radian.
Return
The deg2rad() function Returns the radian equivalent of the specified degree value.
Example
<?php $degVal = 360; $radVal = deg2rad($degVal); echo "$degVal degrees converted to $radVal radians!"; ?>
Output
360 degrees converted to 6.2831853071796 radians!
Let us see another example −
Example
<?php
echo deg2rad("45") . "<br>";
echo deg2rad("90") . "<br>";
echo deg2rad("180") . "<br>";
echo deg2rad("270") . "<br>";
echo deg2rad("360");
?>Output
0.78539816339745<br>1.5707963267949<br>3.1415926535898<br>4.7123889803847<br>6.2831853071796
Updated on: 26-Jun-2020
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