# Python atanh: How to Use Math.atanh() Method in Python

Python atanh() is a method defined under the math module which is basically used to find the hyperbolic arctangent of the given parameter in radians.

Python tanh() method calculates the trigonometric hyperbolic tangent of a given expression. For example, if x is passed as the parameter in atanh function (atanh(x)), it returns the hyperbolic arctangent value.

Another important point to note is that math atanh() function only takes parameter values of number type if any other type is passed; it returns type error.

### Python atanh()

Python atanh() is an inbuilt method defined under the math module and it is used to find the hyperbolic arctangent of the given argument in radians. It is used to get the hyperbolic arctangent of the given number in radians, it accepts a number and returns hyperbolic arctangent.

#### Syntax

``math.atanh(var)``

Here var is a variable of which hyperbolic tangent arc we have to find.

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