In Tableau, the `ATAN`

function is a number function that returns the arctangent of a given number. The arctangent, also known as the inverse tangent, is the angle whose tangent is the specified number.

The syntax for the `ATAN`

function in Tableau is as follows:

```
ATAN(number)
```

`number`

is the numeric value for which you want to calculate the arctangent.

Here's an example to illustrate the usage of the `ATAN`

function in Tableau:

Suppose you have a dataset with a column called "Tangent Value" that contains different tangent values.

Tangent Value |
---|

0.5 |

0.8 |

-0.3 |

1.0 |

To calculate the arctangent of the "Tangent Value" column using the `ATAN`

function, you can create a calculated field in Tableau:

- Right-click on a blank area in the "Data" pane in Tableau.
- Select "Create Calculated Field."
- In the formula editor, enter the following expression:

```
ATAN([Tangent Value])
```

- Click "OK" to create the calculated field.

The calculated field, which utilizes the `ATAN`

function, will calculate the arctangent for each value in the "Tangent Value" column.

The resulting dataset will be as follows:

Tangent Value | Arctangent Value |
---|---|

0.5 | 0.464 |

0.8 | 0.927 |

-0.3 | -0.291 |

1.0 | 0.785 |

In this example, the `ATAN`

function calculates the arctangent for each tangent value in the "Tangent Value" column. For instance, the arctangent of 0.5 is approximately 0.464 radians, the arctangent of 0.8 is approximately 0.927 radians, and so on.

The `ATAN`

function is particularly useful in scenarios involving trigonometry or geometry, where you need to calculate angles based on tangent values. By utilizing the `ATAN`

function in Tableau, you can perform these calculations and analyze data involving angles and their corresponding tangent values.

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