MathJax support - mdBook Documentation
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# MathJax support

mdBook has optional support for math equations through MathJax.

To enable MathJax, you need to add the `mathjax-support` key to your `book.toml` under the `output.html` section.

    [output.html]
    mathjax-support = true

> Note: The usual delimiters MathJax uses are not yet supported. You can’t currently use `$$ ... $$` as delimiters and the `\[ ... \]` delimiters need an extra backslash to work. Hopefully this limitation will be lifted soon.

> Note: When you use double backslashes in MathJax blocks (for example in commands such as `\begin{cases} \frac 1 2 \\ \frac 3 4 \end{cases}`) you need to add two extra backslashes (e.g., `\begin{cases} \frac 1 2 \\\\ \frac 3 4 \end{cases}`).

### Inline equations

Inline equations are delimited by `\\(` and `\\)`. So for example, to render the following inline equation \( \int x dx = \frac{x^2}{2} + C \) you would write the following:

    \\( \int x dx = \frac{x^2}{2} + C \\)

### Block equations

Block equations are delimited by `\\[` and `\\]`. To render the following equation

\[ \mu = \frac{1}{N} \sum_{i=0} x_i \]

you would write:

    \\[ \mu = \frac{1}{N} \sum_{i=0} x_i \\]