There’s a library called MathJax which renders LaTeX equations in Javascript. It seems pretty neat, and its site has a long list of sponsors including StackExchange and IEEE.

I’m playing with importing it – Jekyll’s “front matter” lets you specify variables at the start of a file using YAML syntax, and you can tell the post header to include those variables as scripts. Scripts are stored as files.

Technique came from this StackOverflow answer, and I’ve modified it to expand the file’s contents rather than reference it in a command.

Anyway, the final result – here is a block of LaTeX from Kramdown’s example:

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