How to calculate the nth root of a number in JavaScript?
To calculate the end root of a number, use Math.abs() method. Here, we’re using the Match.pow method also. You can try to run the following code to calculate the square root of numbers in JavaScript −
Example
Live Demo
<html>
<head>
<title>Calculate root</title>
</head>
<body>
<script>
function displayRoot(x, num) {
val = num % 2;
if((val == 1) || x < 0)
x = -x;
var a, num;
a = Math.pow(x, 1 / num);
num = Math.pow(a, num);
if(Math.abs(x - num) < 1 && (x > 0 === num > 0))
return val ? -a : a;
}
document.write(displayRoot(36, 2));
document.write("<br>"+displayRoot(49, 2));
document.write("<br>"+displayRoot(36, -2));
document.write("<br>"+displayRoot(216, -2));
</script>
-+
</body>
</html>
Published on 18-Jan-2018 16:21:57
