Latex Plugin For Pelican

This plugin allows you to write mathematical equations in your articles using Latex and MathMl. It uses the MathJax Latex JavaScript library to render Latex and MathMl that is embedded in your site.

Latex

Anything between $..$ (inline math) and $$..$$ (displayed math) will be recognized as Latex. In addition, anything between between \begin and \end macros will also be recognized as Latex. For example, \begin{equation}...\end{equation} would be used to render math equations with numbering.

Within recognized Latex as described above, Latex macros can be used.

MathMl

Anything between <math> and </math> tags will be recognized as MathMl.

Installation

To enable, ensure that latex.py is put somewhere that is accessible. Then use as follows by adding the following to your settings.py:

PLUGINS = ["latex"]

Your site is now capable of rendering math math using the mathjax JavaScript library. No alterations to the template file is needed.

Typogrify

Typogrify will now play nicely with Latex (i.e. typogrify can be enabled and Latex will be rendered correctly). In order for this to happen, version 2.07 (or above) of typogrify is required. In fact, this plugin expects that at least version 2.07 is present and will fail without it.

Summaries

Summaries that contain math are processed to ensure that math is not off. If math is cut off, it will add it back into the summary.

Templates

No alteration is needed to a template for this plugin to work. Just install the plugin and start writing your Math.

Usage

Backward Compatibility

This plugin is backward compatible in the sense that it will render previous setups correctly. This is because those settings and metadata information is ignored by this version. Therefore you can remove them to neaten up your site

Settings File

Extra options regarding how mathjax renders math can be set in the settings file. These options are in a dictionary variable called LATEX in the pelican settings file.

The dictionary can be set with the following keys:

wrap: controls the tags that math is wrapped with inside the resulting html. For example, setting wrap to 'mathjax' would wrap all math inside <mathjax>...</mathjax> tags. If typogrify is set to True, then math needs to be wrapped in tags and wrap will therefore default to mathjax if not set. wrap cannot be set to 'math' because this tag is reserved for mathml notation
align: controls how displayed math will be aligned. Can be set to either left, right or center (default is center).
indent: if align not set to center, then this controls the indent level (default is 0em).
show_menu: controls whether the mathjax contextual menu is shown.
process_escapes: controls whether mathjax processes escape sequences.
preview: controls the preview message users are seen while mathjax is loading.
color: controls the color of the mathjax rendered font.

For example, in settings.py, the following would make math render in blue and displaymath align to the left:

LATEX = {'color':'blue','align':left}

Latex Examples

###Inline Latex between $..$, for example, $x^2$, will be rendered inline with respect to the current html block.

###Displayed Math Latex between $$..$$, for example, $$x^2$$, will be rendered centered in a new paragraph.

###Equations Latex between \begin and \end, for example, begin{equation} x^2 \end{equation}, will be rendered centered in a new paragraph with a right justified equation number at the top of the paragraph. This equation number can be referenced in the document. To do this, use a label inside of the equation format and then refer to that label using ref. For example: begin{equation} \label{eq} X^2 \end{equation}. Now refer to that equation number by $\ref{eq}$.

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