MathJax Configuration

Create or extend _includes/head_custom.html with:

{% assign math = page.math | default: layout.math | default: site.math %}

{% case math %}
  {% when "mathjax" %}
    {% include mathjax.html %}
{% endcase %}

Copy the following files to your website source repo:

For the source file _includes/mathjax.html from just-the-docs, we have updated the incorrectly set path from src="/just-the-docs/assets/js/mathjax-script-type.js" to the repositry root src="/assets/js/mathjax-script-type.js".

To make MathJax available on all your web pages, add to _config.yml:
```
math: mathjax
```
To restrict MathJax to pages that use it, add to the front matter either:
```
math: mathjax
```
or:
```
layout: mathjax
```
You can add a preamble of MathJax definitions of new commands and environments in _layouts/mathjax.html. It extends the default layout.

MathJax options

You can customise MathJax by adding further options in _includes/mathjax.html.

You can customise Just the Docs sites to support MathJax, as explained in the configuration suggestions. Pages then render \(\mathrm{\LaTeX}\) code in kramdown math blocks using MathJax.

For example:

\[\begin{aligned} & \phi(x,y) = \phi \left(\sum_{i=1}^n x_ie_i, \sum_{j=1}^n y_je_j \right) = \sum_{i=1}^n \sum_{j=1}^n x_i y_j \phi(e_i, e_j) = \\ & (x_1, \ldots, x_n) \left( \begin{array}{ccc} \phi(e_1, e_1) & \cdots & \phi(e_1, e_n) \\ \vdots & \ddots & \vdots \\ \phi(e_n, e_1) & \cdots & \phi(e_n, e_n) \end{array} \right) \left( \begin{array}{c} y_1 \\ \vdots \\ y_n \end{array} \right) \end{aligned}\]

To see the \(\mathrm{\LaTeX}\) source of the formula, right-click anywhere on it.