JavaScript atan() method
- Previous Page asinh()
- Next Page atan2()
- Go to the Previous Level JavaScript Math Reference Manual
Definition and usage
atan() The method returns the arctangent value of the number, the returned value is the radian value between -PI/2 and PI/2.
Syntax
Math.atan(x)
Parameter value
| Parameter | Description |
|---|---|
| x | Required. Number. |
Technical details
| Return value: | Numbers, from -PI/2 to PI/2, if the value is empty, it returns NaN. |
|---|---|
| JavaScript version: | ECMAScript 1 |
Browser Support
Math.atan() Is an ES1 feature (JavaScript 1999). All browsers fully support it:
| Chrome | IE | Edge | Firefox | Safari | Opera |
|---|---|---|---|---|---|
| Support | Support | Support | Support | Support | Support |
Related Pages
Tutorial:JavaScript Mathematics
- Previous Page asinh()
- Next Page atan2()
- Go to the Previous Level JavaScript Math Reference Manual
