# Mathematical notation

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KaTeX can be used to render mathematical notation within articles.

Congo will only bundle the KaTeX assets into your project if you make use of mathematical notation. In order for this to work, simply include the katex shortcode within the article. Any KaTeX syntax on that page will then be automatically rendered.

Use the online reference of supported TeX functions for the available syntax.

## Inline notation #

Inline notation can be generated by wrapping the expression in \$$ and \$$ delimiters.

Example:

% KaTeX inline notation
Inline notation: \$$\varphi = \dfrac{1+\sqrt5}{2}= 1.6180339887…\$$


Inline notation: $$\varphi = \dfrac{1+\sqrt5}{2}= 1.6180339887…$$

## Block notation #

Alternatively, block notation can be generated using $$ delimiters. This will output the expression in its own HTML block. Example: % KaTeX block notation$$
\varphi = 1+\frac{1} {1+\frac{1} {1+\frac{1} {1+\cdots} } }
$$$$ \varphi = 1+\frac{1} {1+\frac{1} {1+\frac{1} {1+\cdots} } } Author
Congo
This is an example author bio, and although there’s a stock photo of a dog here, this article was actually created by a human. 🐶