# Trigonometry

## Introduction

*Trigonometric functions* are used to calculate the acute angles and side lengths of right-angled triangles. Trigonometry has a vast number of applications, ranging from engineering to astronomy. The most relevant to **Incari**, though, is that it can be used to calculate coordinates and distances within 3D space.

## Trigonometric Functions

* [**Sine**](https://docs.incari.com/incari-studio/2022.1/toolbox/math/trigonometry/sine) - Returns the *sine* of an input value.
* [**Cosine**](https://docs.incari.com/incari-studio/2022.1/toolbox/math/trigonometry/cosine) - Returns the *cosine* of an input value.
* [**Tangent**](https://docs.incari.com/incari-studio/2022.1/toolbox/math/trigonometry/tangent) - Returns the *tangent* of an input value.

## Inverse Trigonometric Functions

* [**Arc Sine**](https://docs.incari.com/incari-studio/2022.1/toolbox/math/trigonometry/arc-sine) - Returns the *arcsine* of an input value.
* [**Arc Cosine**](https://docs.incari.com/incari-studio/2022.1/toolbox/math/trigonometry/arc-cosine) - Returns the *arccosine* of an input value.
* [**Arc Tangent**](https://docs.incari.com/incari-studio/2022.1/toolbox/math/trigonometry/arc-tangent) - Returns the *arctangent* of an input value.
* [**Arc Tangent 2**](https://docs.incari.com/incari-studio/2022.1/toolbox/math/trigonometry/arc-tangent2) - Returns the *two-argument arctangent* of two input values.

## Converters

* [**Radian-Degree Converter**](https://docs.incari.com/incari-studio/2022.1/toolbox/math/trigonometry/radian-degree-converter) - Converts radians to degrees or degrees to radians.