Javascript - Math atan2() Method
The atan2() method returns the arctangent of the quotient of its arguments, between PI and -PI radians.
Description
The atan2() method returns the arctangent of the quotient of its arguments, between PI and -PI radians.
With atan2(), the y coordinate is passed as the first argument and the x coordinate is passed as the second argument.
Syntax
Math.atan2(y, x)
| Parameter | Require | Description |
|---|---|---|
| y | Required. | A number representing the y coordinate |
| x | Required. | A number representing the x coordinate |
Return
A Number, from PI to -PI, or NaN if the value(s) are empty
Example
Demo
//display the arctangent of 8/4
console.log(Math.atan2(8, 4));
Result
