> 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/2021.4/toolbox/math/trigonometry.md).

# 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**](/incari-studio/2021.4/toolbox/math/trigonometry/sine.md) - Returns the *sine* of an input value.
* [**Cosine**](/incari-studio/2021.4/toolbox/math/trigonometry/cosine.md) - Returns the *cosine* of an input value.
* [**Tangent**](/incari-studio/2021.4/toolbox/math/trigonometry/tangent.md) - Returns the *tangent* of an input value.

## Inverse Trigonometric Functions

* [**Arc Sine**](/incari-studio/2021.4/toolbox/math/trigonometry/arc-sine.md) - Returns the *arcsine* of an input value.
* [**Arc Cosine**](/incari-studio/2021.4/toolbox/math/trigonometry/arc-cosine.md) - Returns the *arccosine* of an input value.
* [**Arc Tangent**](/incari-studio/2021.4/toolbox/math/trigonometry/arc-tangent.md) - Returns the *arctangent* of an input value.

## Converters

* [**Radian-Degree Converter**](/incari-studio/2021.4/toolbox/math/trigonometry/radian-degree-converter.md) - Converts radians to degrees or degrees to radians.