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63 lines
1.5 KiB
Markdown
63 lines
1.5 KiB
Markdown
---
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tags:
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- plugin/transformer
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---
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Quartz uses [Katex](https://katex.org/) by default to typeset both inline and block math expressions at build time.
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## Syntax
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### Block Math
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Block math can be rendered by delimiting math expression with `$$`.
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```
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$$
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f(x) = \int_{-\infty}^\infty
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f\hat(\xi),e^{2 \pi i \xi x}
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\,d\xi
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$$
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```
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$$
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f(x) = \int_{-\infty}^\infty
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f\hat(\xi),e^{2 \pi i \xi x}
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\,d\xi
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$$
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$$
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\begin{aligned}
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a &= b + c \\ &= e + f \\
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\end{aligned}
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$$
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$$
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\begin{bmatrix}
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1 & 2 & 3 \\
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a & b & c
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\end{bmatrix}
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$$
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### Inline Math
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Similarly, inline math can be rendered by delimiting math expression with a single `$`. For example, `$e^{i\pi} = -1$` produces $e^{i\pi} = -1$
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### Escaping symbols
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There will be cases where you may have more than one `$` in a paragraph at once which may accidentally trigger MathJax/Katex.
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To get around this, you can escape the dollar sign by doing `\$` instead.
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For example:
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- Incorrect: `I have $1 and you have $2` produces I have $1 and you have $2
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- Correct: `I have \$1 and you have \$2` produces I have \$1 and you have \$2
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## MathJax
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In `quartz.config.ts`, you can configure Quartz to use [MathJax SVG rendering](https://docs.mathjax.org/en/latest/output/svg.html) by replacing `Plugin.Latex({ renderEngine: 'katex' })` with `Plugin.Latex({ renderEngine: 'mathjax' })`
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## Customization
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- Removing Latex support: remove all instances of `Plugin.Latex()` from `quartz.config.ts`.
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- Plugin: `quartz/plugins/transformers/latex.ts`
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