# TANH

The TANH function calculates the hyperbolic tangent of a given angle.

## Syntax

`TANH(angle)`

### Parameters

#### angle

This is the angle in radians for which you want to calculate the hyperbolic tangent.

## Examples

```esql
ROW a=1.8
| EVAL tanh = TANH(a)
```

```esql
ROW angle=0.5
| EVAL hyperbolic_tangent = TANH(angle)
```
