تابع تبدیل درجه به رادیان و بلعکس
جمعه 6 مرداد 1391 3:09 PMتابع deg2rad : کار تابع تبدیل درجه به رادیان است.
تابع rad2deg: کار تابع تبدیل رادیان به درجه است.
مثال :
<?php
// result: "90 degrees = 1.57079632679 radians "
$degrees = 90;
$radians = deg2rad($degrees);
echo "$degrees degrees = $radians radians <br>";
// result: "1.57079632679491 radians = 90 degrees"
$radians = 1.57079632679491;
$degrees = rad2deg($radians);
echo "$radians radians = $degrees degrees";
?>
// result: "90 degrees = 1.57079632679 radians "
$degrees = 90;
$radians = deg2rad($degrees);
echo "$degrees degrees = $radians radians <br>";
// result: "1.57079632679491 radians = 90 degrees"
$radians = 1.57079632679491;
$degrees = rad2deg($radians);
echo "$radians radians = $degrees degrees";
?>
خروجی :
90 degrees = 1.5707963267949 radians
1.5707963267949 radians = 90.000000000001 degrees
1.5707963267949 radians = 90.000000000001 degrees