JavaScript atan() Method
Example
Return the arctangent of a specified number:
Math.atan(2);
The result will be:
1.1071487177940904
Try it Yourself »
Definition and Usage
The atan() method returns the arctangent of a number as a value between -PI/2 and PI/2 radians.
Browser Support
Method | |||||
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atan() | Yes | Yes | Yes | Yes | Yes |
Syntax
Math.atan(x)
Parameter Values
Parameter | Description |
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x | Required. A number |
Technical Details
Return Value: | A Number, from -PI/2 to PI/2, or NaN if the value is empty |
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JavaScript Version: | 1.0 |
JavaScript Math Object