JavaScript sqrt() Method
 JavaScript Math Object
Definition and Usage
The sqrt() method returns the square root of a number.
Syntax
| Parameter |
Description |
| x |
Required. A number |
Tips and Notes
Note: The sqrt() method will return NaN if the parameter x is a negative number.
Example
Example
Return the square root of different numbers:
<script type="text/javascript">
document.write(Math.sqrt(0) + "<br />");
document.write(Math.sqrt(1) + "<br />");
document.write(Math.sqrt(9) + "<br />");
document.write(Math.sqrt(0.64) + "<br />");
document.write(Math.sqrt(-9));
</script>
|
The output of the code above will be:
Try it yourself »
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JavaScript Math Object
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