JavaScript Math.atanh()

let x = Math.atanh(0.5)

Description

The Math.atanh() method returns the hyperbolic arctangent of a number.

The Math.atanh() method expects a number between -1 and 1.

The Math.atanh() method returns Infinity if the number is 1.

The Math.atanh() method returns -Infinity if the number is -1.

Math.atanh( x)

Parameter	Description
x	Required. A number.

Type	Description
Number	The hyperbolic arctangent of the number. Or NaN, or Infinity, or -Infinity. `NaN` if the number is greater than 1, or less than -1.

Math.atanh() is an ECMAScript6 (ES6) feature.

ES6 (JavaScript 2015) is supported in all modern browsers:


Chrome	Edge	Firefox	Safari	Opera
Yes	Yes	Yes	Yes	Yes

Math.atanh() is not supported in Internet Explorer 11 (or earlier).