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