A Preprocessor for mdbook, converting Latex equations to html at compile time. This preprocessor uses the katex crate; see this page for supported Latex functions.

Basic Usage

First, install the crate

cargo install mdbook-katex

Then, add the KaTex preprocessor to your book.toml file

[preprocessor.katex]
command = "mdbook-katex"

Once this is done, you can use KaTex expressions within your .md files, using $ and $$ delimiters. Use \$ for a regular dollar symbol.

# Chapter 1

Here is an inline example, $ \pi(\theta) $, 

An equation:

$$ \nabla f(x) \in \mathbb{R}^n $$

And a regular \$ symbol.

Macros

Macros with no arguments are supported. They must be specified in a .txt file, according to the following pattern

\grad:{\nabla}
\Rn:{\mathbb{R}^n}

Then, change the preprocessor command in your book.toml to tell it where the macros are located

[preprocessor.katex]
command = "mdbook-katex --macros=path/to/macros.txt"

You can now use these macros in any .md file.

# Chapter 1

$$ \grad f(x) \in \Rn $$