Definition and Usage The sqrt() method returns the square root of a number. Syntax Math.sqrt(x) Parameter Description ...
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
In this example we will get 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:
