notes/docs/mathjax/index.md

layout	title	nav_order	has_children	mathjax
default	Mathjax	8	true	true

Mathjax

To use Mathjax on a just-the-docs page:

• include mathjax: true in the YAML preamble

• enclose \LaTeX code in kramdown math blocks

The default Mathjax options in _config.yml are:

compress_html:
  blanklines: true # required for Mathjax
mathjax:
  source: https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.5/latest.js?config=TeX-AMS_CHTML
  config: 'MathJax.Hub.Config({ TeX: { equationNumbers: { autoNumber: "AMS" } } })'

Here is an example:

\begin{align*}
  & \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{align*}

For further examples, see this test page, adapted from a test in markdown-preview-plus.