# Python – Find Hyperbolic Tangent – tanh() Function with Examples

`tanh()` function is used to find the the hyperbolic tangent of the given input. Hyperbolic tangent means the analogue of an circular function used throughout trigonometry. This function is a part of python programming language.

## Syntax of `tanh()` Function

The syntax of `tanh()` function in Python is:

```math.tanh(x)
```

## Parameters of `tanh()` Function in Python

`x` – Where `x` is any valid python number (positive or negative). This parameter is required.
Note: If the `x` parameter is not a number, `tanh()` function will return an ```Error. ```

## Compatibility

`tanh()` function is available and compatible with both Python `2.x` and `3.x`. This function is a part of python standard math library.

## Return Value of `tanh()` Function in Python

`tanh()` function returns the hyperbolic tangent for the given input (`x` – parameter).

## Python `tanh()` Function Example

Here, we are using different values as an input and finding heir hyperbolic tan.

```# import math library
import math
print(math.tanh(-0.10))
print(math.tanh(0))
print(math.tanh(0.17))
print(math.tanh(332))
print(math.tanh(-69253))
```

Output:
```-0.09966799462495582 0.0 0.16838104587081473 1.0 -1.0```