JavaScript log() Method
 Complete Math Object Reference
Definition and Usage
The log() method returns the natural logarithm (base E) of a number.
Syntax
| Parameter |
Description |
| x |
Required. A number |
Tips and Notes
Note: If the parameter x is negative, NaN is returned.
Example
In the following example we will use the log() method on different numbers:
<script type="text/javascript">
document.write(Math.log(2.7183) + "<br />");
document.write(Math.log(2) + "<br />");
document.write(Math.log(1) + "<br />");
document.write(Math.log(0) + "<br />");
document.write(Math.log(-1));
</script>
|
The output of the code above will be:
1.0000066849139877
0.6931471805599453
0
-Infinity
NaN
|
|
Complete Math Object Reference
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