Mathematical Notations

You can use KaTeX to render mathematical notations.

You can enable the $\KaTeX$ support globally, per-section or per-page basis.

Enable Globally

To enable the $\KaTeX$ support globally, add math = true under [extra] of the config.toml at your site root. Now the katex shortcode will be rendered, you can also add math_auto_render = true and every section and page of your site will load the KaTeX autorender extension.

[extra]
math = true
math_auto_render = false

Per-section Basis

To enable the $\KaTeX$ support in a particular section, add math = true under [extra] in the [SECTION_NAME]/_index.md. Now the katex shortcode will be rendered, you can also add math_auto_render = true and the section of your site will load the KaTeX autorender extension.

+++
[extra]
math = true
+++

Per-page Basis

To enable the $\KaTeX$ support in a particular page, add math = true under [extra] in the page's frontmatter. Now the katex shortcode will be rendered, you can also add math_auto_render = true and the page of your site will load the KaTeX autorender extension.

+++
[extra]
math = true
math_auto_render = true
+++

It is a good practice to enable $\KaTeX$ support on a per-page basis, since this will only load the required files on that particular page, without affecting the page load speed of other pages. If your site is not math-heavy, please do NOT enable this feature globally or per-section basis.

Usage

Wrap any valid $\KaTeX$ syntax with $...$ for inline Mathematics and $$...$$ for block Mathematics.

Inline Mathematics

This is the most beautiful equation I've ever seen:

Usage

{% katex(block=false) %} e^{i\pi}+1=0 {% end %}

Output

<script type="math/tex">e^{i\pi}+1=0</script>

Block Mathematics

Some Mathematics in display mode is fair enough:

Usage

{% katex(block=true) %} \int_0^1 x^2 dx {% end %}

Output

<script type="math/tex;mode=display">\int_0^1 x^2 dx</script>

Auto Render Inline Example

$ e^{i\pi}+1=0 $

$ e^{i\pi}+1=0 $

Auto Render Block Example

$$
f(x) = \int_{-\infty}^\infty\hat f(\xi)\,e^{2 \pi i \xi x}\,d\xi
$$

$$ f(x) = \int_{-\infty}^\infty\hat f(\xi),e^{2 \pi i \xi x},d\xi $$