Math.sqrt() Method is used to return the square root of a number.
Syntax:
Math.sqrt(x)
Example:
<script>
var one = Math.sqrt(3);
document.writeln('Output of 3 : ' + one + '</br></br>');
var two = Math.sqrt(-4);
document.writeln('Output of -4 : ' + two + '</br></br>');
var three = Math.sqrt(9);
document.writeln('Output of 9 : ' + three + '</br></br>');
var four = Math.sqrt(15);
document.writeln('Output of 15 : ' + four + '</br></br>');
</script>Output
Output of 3 : 1.7320508075688772 Output of -4 : NaN Output of 9 : 3 Output of 15 : 3.872983346207417
 Method is used to return the square root of a number. Syntax: Math.sqrt(x) Example: <script> var one = Math.sqrt...){kind=link}