MathJax is a simple, yet powerful, way of
including Tex/LaTex/MathML based mathematics in HTML webpages.

## Usage

To enable MathJax support configure your `_config.xml`

to:

- Set
`kramdown`

as the Markdown parser.
- Enable MathJax.

The version of MathJax enabled is v3.

An example setting for `_config.xml`

is shown below:

```
markdown: kramdown
mathjax:
enable: true
combo: "tex-svg"
tags: "ams"
```

Use `$$`

as delimiters to enable TeX math mode, both for inline and display (i.e. block) rendering.

Here is an example equation that is inline: \(a^2 + b^2 = c^2\), where
\(a\), \(b\), and \(c\) are variables.

Here is a block rendering with no default equation numbering:

\[\frac{1}{n^{2}}\]
And, below is a block using the `\begin{equation}`

and
`\end{equation}`

LaTeX delimiters. This equation will be numbered in
the `ams`

and `all`

setting for `mathjax.tags`

.

\[\begin{equation}
\mathbf{X}_{n,p} = \mathbf{A}_{n,k} \mathbf{B}_{k,p} \label{test}
\end{equation}\]
If equation numbering is turned on, we should see an equation number here: \(\eqref{test}\).

An example using the `{align}`

LaTeX environment is below. The first equation has a `\notag`

directive.

\[\begin{align}
(x + y) (x - y) &= x^2 + xy - xy + y^2 \notag \\
&= x^2 - y^2
\end{align}\]