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Math extension for Python-Markdown

Project description

Travis CI status

Math extension for Python-Markdown

This extension adds math formulas support to Python-Markdown.

Installation

Install from PyPI

$ pip install python-markdown-math

Install locally

Use setup.py build and setup.py install to build and install this extension, respectively.

The extension name is mdx_math, so you need to add that name to your list of Python-Markdown extensions. Check Python-Markdown documentation for details on how to load extensions.

Usage

To use this extension, you need to include MathJax library in HTML files, like:

<script type="text/javascript" src="https://cdn.jsdelivr.net/npm/mathjax@2/MathJax.js">
</script>

Also, you need to specify a configuration for MathJax. Please note that most of standard configurations include tex2jax extension, which is not needed with this code.

Example of configuration for MathJax 2.x:

<script type="text/x-mathjax-config">
MathJax.Hub.Config({
  config: ["MMLorHTML.js"],
  jax: ["input/TeX", "output/HTML-CSS", "output/NativeMML"],
  extensions: ["MathMenu.js", "MathZoom.js"]
});
</script>

If you want to use MathJax 3.x, you need to teach it to understand 2.x-style <script> tags. See the upgrading documentation on how to do it. Alternatively, you may use the Arithmatex extension which has a generic output mode, that does not require such special configuration.

To pass the extension to Python-Markdown, use mdx_math as extension name. For example:

>>> md = markdown.Markdown(extensions=['mdx_math'])
>>> md.convert('$$e^x$$')
'<p>\n<script type="math/tex; mode=display">e^x</script>\n</p>'

Usage from the command line:

$ echo "\(e^x\)" | python3 -m markdown -x mdx_math
<p>
<script type="math/tex">e^x</script>
</p>

Math Delimiters

For inline math, use \(...\).

For standalone math, use $$...$$, \[...\] or \begin...\end.

The single-dollar delimiter ($...$) for inline math is disabled by default, but can be enabled by passing enable_dollar_delimiter=True in the extension configuration.

If you want to use GitLab-style delimiters ($`...`$ for inline math, and a code block-like ```math...``` syntax for standalone), use use_gitlab_delimiters=True configuration option.

If you want to this extension to generate a preview node (which will be shown when MathJax has not yet processed the node, or when JavaScript is unavailable), use add_preview=True configuration option.

Notes

If you use ReText, this extension is not needed as it is included by default.

This extension also works with Katex. Use the following in your page <head>:

<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/katex/dist/katex.min.css" crossorigin="anonymous">
<script src="https://cdn.jsdelivr.net/npm/katex/dist/katex.min.js" crossorigin="anonymous"></script>
<script src="https://cdn.jsdelivr.net/npm/katex/dist/contrib/mathtex-script-type.min.js" defer></script>

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