# TANH

Returns the hyperbolic tangent of a number.

## Syntax

```
TANH(number)
```

### Parameters

Term | Definition |
---|---|

number | Required. Any real number. |

## Return value

Returns the hyperbolic tangent of a number.

## Remarks

The formula for the hyperbolic tangent is:

$$\text{TANH}(z) = \frac{\text{SINH}(z)}{\text{COSH}(z)}$$

This function is not supported for use in DirectQuery mode when used in calculated columns or row-level security (RLS) rules.

## Example

Formula | Description | Result |
---|---|---|

= TANH(-2) | Hyperbolic tangent of -2 (-0.96403) | -0.964028 |

= TANH(0) | Hyperbolic tangent of 0 (0) | 0 |

= TANH(0.5) | Hyperbolic tangent of 0.5 (0.462117) | 0.462117 |