take the tangent of a number in php

main.php
$num = 45; // the number
$tan = tan($num); // find its tangent
echo "The tangent of $num is $tan"; // print the result
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main.php
The tangent of 45 is 1.6197751905439
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2 lines

main.php
$num = 45; // the number in degrees
$rad = deg2rad($num); // convert to radians
$tan = tan($rad); // find the tangent
echo "The tangent of $num degrees is $tan"; // print the result
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main.php
The tangent of 45 degrees is 1
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2 lines