This theme also provides MathJax support via the extra.math parameter. When enabled, the MathJax javascript library is included via CDN, and a latex formula such as

$$
\frac{df}{dx} = x^2 + y
$$

Will be rendered like so:

$$ \frac{df}{dx} = x^2 + y $$

You can also embed math into a paragraph with single \$ as delimeters. For example, inlcuding "\$y = f(x)\$" will render as $y = f(x)$.