41 lines
1.5 KiB
Plaintext
41 lines
1.5 KiB
Plaintext
title: $:/plugins/tiddlywiki/katex/usage
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!! Reference:
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# Mathematical typesetting: [ext[https://katex.org/docs/supported.html]]
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# Chemical typesetting: [ext[https://mhchem.github.io/MathJax-mhchem/]]
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!! Syntax
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The usual way to include ~LaTeX is to use `$$` (when copying code examples from the references above, you will need to change from `$` to `$$`). For example:
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```
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$$\displaystyle f(x) = \int_{-\infty}^\infty\hat f(\xi)\,e^{2 \pi i \xi x}\,d\xi$$
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```
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$$\displaystyle f(x) = \int_{-\infty}^\infty\hat f(\xi)\,e^{2 \pi i \xi x}\,d\xi$$
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chemical:
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```
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$$\ce{Hg^2+ ->[I-] HgI2 ->[I-] [Hg^{II}I4]^2-}$$
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```
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$$\ce{Hg^2+ ->[I-] HgI2 ->[I-] [Hg^{II}I4]^2-}$$
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Single line equations will render in inline mode. If there are newlines between the `$$` delimiters, the equations will be rendered in display mode.
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The underlying widget can also be used directly, giving more flexibility:
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```
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<$latex text="f(x) = \int_{-\infty}^\infty\hat f(\xi)\,e^{2 \pi i \xi x}\,d\xi" displayMode="true"></$latex>
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```
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<$latex text="f(x) = \int_{-\infty}^\infty\hat f(\xi)\,e^{2 \pi i \xi x}\,d\xi" displayMode="true"></$latex>
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The KaTeX widget is provided under the name `<$latex>` and is also available under the alias `<$katex>`. It's better to use the generic `<$latex>` name unless you are running multiple ~LaTeX plugins and wish to specifically target KaTeX.
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!! Macro
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Tiddlers with tag `$:/tags/KaTeX/Macro` will be recognized as global KaTeX macros. You can create new macro using the form in the [[config|$:/plugins/tiddlywiki/katex/config]].
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