mirror of https://github.com/thangisme/notes.git
60 lines
1.5 KiB
Markdown
60 lines
1.5 KiB
Markdown
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---
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layout: default
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title: Mathjax
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nav_order: 8
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has_children: true
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mathjax: true
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---
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# Mathjax
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To use [Mathjax] on a just-the-docs page:
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- include `mathjax: true` in the YAML preamble
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- enclose $$ \LaTeX $$ code in [kramdown math blocks]
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The default Mathjax options in `_config.yml` are:
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```yaml
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compress_html:
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blanklines: true # required for Mathjax
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mathjax:
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source: https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.5/latest.js?config=TeX-AMS_CHTML
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config: 'MathJax.Hub.Config({ TeX: { equationNumbers: { autoNumber: "AMS" } } })'
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```
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Here is an example:
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$$
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\begin{align*}
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& \phi(x,y) = \phi \left(\sum_{i=1}^n x_ie_i, \sum_{j=1}^n y_je_j \right)
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= \sum_{i=1}^n \sum_{j=1}^n x_i y_j \phi(e_i, e_j) = \\
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& (x_1, \ldots, x_n) \left( \begin{array}{ccc}
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\phi(e_1, e_1) & \cdots & \phi(e_1, e_n) \\
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\vdots & \ddots & \vdots \\
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\phi(e_n, e_1) & \cdots & \phi(e_n, e_n)
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\end{array} \right)
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\left( \begin{array}{c}
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y_1 \\
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\vdots \\
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y_n
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\end{array} \right)
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\end{align*}
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$$
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For further examples, see [this test page](test), adapted from a [test]
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in [markdown-preview-plus].
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[Mathjax]: https://www.mathjax.org
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"Mathjax home page"
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[kramdown math blocks]: https://kramdown.gettalong.org/syntax.html#math-blocks
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"kramdown math blocks documentation"
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[test]: https://github.com/atom-community/markdown-preview-plus/blob/master/EXAMPLE.md
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"Markdown-preview-plus test file"
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[markdown-preview-plus]: https://atom.io/packages/markdown-preview-plus
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"Markdown-preview-plus package page"
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