# Site Rationale

```{tip}
You may be looking for a particular language's [API documentation instead](#api-documentation)
```

SymEngine is a fast symbolic manipulation library, written in C++. The core
focus of this site is to introduce the features of the library through practical
examples. The site is laid out in a largely linear fashion, with the tutorials preceding the discussion on integrating with build systems for production code.

To follow along, proceed to the [tutorial setup instructions](use/index).

## Contents

```{toctree}
:maxdepth: 2
:titlesonly:
Tutorials <use/index>
Production Usage <inst/index>
Design and Core Principles <design/index>
Frequently Asked Questions <misc/faq>
```

## API Documentation

- [C++ API Documentation](https://symengine.org/symengine)
- [R Bindings](https://symengine.org/symengine.R)
- [Julia Bindings](https://symengine.org/SymEngine.jl/)
- [Python Bindings](https://symengine.org/symengine.py)

## Other Resources

- [Mailing List](https://groups.google.com/g/symengine)
- [GH Wiki](https://github.com/symengine/symengine/wiki)
- [Gitter](https://gitter.im/symengine/symengine?at=53ac6f80b7f5a3321716c7eb)

* {ref}`search`

## Licenses

### Symengine [![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT)

- All `symengine` core code and language bindings are licensed under [the MIT license](https://mit-license.org/)
- Some third party code packages adapted from the Tilinos package are licensed under a [BSD 3-clause license](https://opensource.org/licenses/BSD-3-Clause)

### Documentation [![CC BY 4.0][cc-by-shield]][cc-by]

The documentation is licensed under a [Creative Commons Attribution 4.0 International License][cc-by].

[![CC BY 4.0][cc-by-image]][cc-by]

[cc-by]: http://creativecommons.org/licenses/by/4.0/
[cc-by-image]: https://i.creativecommons.org/l/by/4.0/88x31.png
[cc-by-shield]: https://img.shields.io/badge/License-CC%20BY%204.0-lightgrey.svg