Hi,
I can't find any function in php to give me the first root of a number.
Is there any built-in function for it?
For example:
81 => 3
9 => 3
64 => 2
256 => 2
I wrote this function to get it, But it seems sqrt always return a float.
Code: <?php
function getRoot($num)
{
if (is_int(sqrt($num))) // (strpos(sqrt($num), '.'))
$num = sqrt($num);
return $num;
}
?>
Any idea?
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