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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
The atan() method is supported in all major browsers.
Syntax
Math.atan(x)
Parameter Values
| Parameter | Description |
|---|---|
| x | Required. A number |
Return Value
| Type | Description |
|---|---|
| Number | A Number, from -PI/2 to PI/2, or NaN if the value is empty |
Technical Details
| JavaScript Version: | 1.0 |
|---|
JavaScript Math Object
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