> For the complete documentation index, see [llms.txt](https://docs.incari.com/incari-studio/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.incari.com/incari-studio/master/math/trigonometry/arc-tangent.md).

# Arc Tangent

## Overview

![](/files/-MfgmfMP8xkRBHIh3IjS)

The **Arc Tangent Node** takes a single **Float Value**, representing an angle, in degrees (°) or radians (rad), and returns its *arc tangent*.

*Arc Tangent* is a *trigonometric function*, used to calculate the acute angles and side lengths of right-angled triangles. Trigonometry has a vast amount applications, ranging from engineering to astronomy. The most relevent to INCARI, though, is that it can be used to calculate cooridnates and distances within 3D space.

## Attributes

| Attribute   | Type     | Description                                                                               |
| ----------- | -------- | ----------------------------------------------------------------------------------------- |
| `Is Degree` | **Bool** | Determines whether or not the `Input` **Value** is given in degrees (°) or radians (rad). |

## Inputs

| Input             | Type      | Description                                                           |
| ----------------- | --------- | --------------------------------------------------------------------- |
| *Pulse Input* (►) | **Pulse** | A standard **Input Pulse**, to trigger the execution of the **Node**. |
| `Input`           | **Float** | The angle to calculate the *arc tangent* of.                          |

## Outputs

| Output             | Type      | Description                                                                                                                            |
| ------------------ | --------- | -------------------------------------------------------------------------------------------------------------------------------------- |
| *Pulse Output* (►) | **Pulse** | A standard **Output Pulse**, to move onto the next **Node** along the **Logic Branch**, once this **Node** has finished its execution. |
| `Output`           | **Float** | The *arc tangent* of `Input`.                                                                                                          |

## External Links

* [*Trigonometry*](https://www.khanacademy.org/math/trigonometry) on Kahn Academy.
* [*Sine, Cosine and Tangent*](https://www.mathsisfun.com/sine-cosine-tangent.html) on Maths is Fun.