How to calculate the square root of a number in JavaScript
In this tutorial, we are going to see how to calculate the square root of a number using the Math.sqrt() method. This method returns the square root of a number. If the value of a number is negative, sqrt returns NaN(Not a Number).
Script to calculate the square root of a number in JavaScript :
<html>
<head>
<title>Calculate the square root of a number in JS</title>
</head>
<body>
<script>
var res = Math.sqrt( 1.5 );
document.write("First value : " + res + "<br />");
var res = Math.sqrt( 16 );
document.write("Second value : " + res );
</script>
</body>
</html>
Output:
First value : 1.224744871391589 Second value : 4
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