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JavaScript Math atanh() Method

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

Definition and Usage

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.

JavaScript Tangent Methods:

The Math.tan() Method
The Math.tanh() Method
The Math.atan() Method
The Math.atan2() Method
The Math.atanh() Method

Sine and Cosine Methods:

The Math.sin() Method
The Math.cos() Method

Syntax

Math.atanh(x)

Parameters

Parameter Description
x Required.
A number.

Return Value

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

Related Pages:

JavaScript Math

JavaScript Numbers

JavaScript Number Reference

Browser Support

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).

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