> 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/2021.1/toolbox/math/math-constant.md).

# Math Constant

## Overview

![The Math Constant Node.](/files/-MgBWBLfUfAudZhbBaMz)

The **Math Constant** **Node** outputs a mathematical constant chosen out of three options: Pi, e (Euler's number), and Douglas-Adams Constant (42).

## Attributes

### Miscellaneous

| Attribute | Type          | Description                                   |
| --------- | ------------- | --------------------------------------------- |
| `Type`    | **Drop-down** | The mathematical constant you wish to output. |

## Outputs

| Output  | Type      | Description                                              |
| ------- | --------- | -------------------------------------------------------- |
| `Value` | **Float** | The value of the mathematical constant chosen in `Type`. |

## External Links

* [*Pi*](https://en.wikipedia.org/wiki/Pi) on Wikipedia.
* [*e (mathematical constant)*](https://en.wikipedia.org/wiki/E_%28mathematical_constant%29) on Wikipedia.