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KaTeX/contrib/mhchem/README.md
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# mhchem extension
This extension adds to KaTeX the `\ce` and `\pu` functions from the [mhchem](https://mhchem.github.io/MathJax-mhchem/) package.
### Usage
This extension isn't part of core KaTeX, so the script should be separately included. Write the following line into the HTML page's `<head>`. Place it *after* the line that calls `katex.js`.
```html
<script src="https://cdn.jsdelivr.net/npm/katex@0.10.0/dist/contrib/mhchem.min.js"></script>
```
### Syntax
See the [mhchem Manual](https://mhchem.github.io/MathJax-mhchem/) for a full explanation of the input syntax, with working examples. The manual also includes a demonstration box.
### Browser Support
This extension has been tested on Chrome, Firefox, Opera, and Edge.