hypot():hypotenuse of a right-angle triangle

echo hypot(4,3); // Output is 5
echo "<br>";
echo hypot(2,3); // Output 3.605551275464
echo "<br>";
echo hypot(4,5); // Output 6.4031242374328
echo "<br>";
echo hypot(8,10); // Output is 12.806248474866
echo "<br>";
echo hypot(12,13); // Output is 17.691806012954
float hypot ( float $x , float $y )
$xRequired : Length of first side.
$xRequired : Length of second side.
The output is length of the hypotenuse.

Rounding the output to two decimal place by using round()
echo round(hypot(9,10),2); // Output is 13.45

Math Functions base_convert(): Convert number From any base to other bindec(): Decimal equivalent of Binary string
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