mirror of
https://github.com/Smaug123/KaTeX
synced 2025-10-06 03:38:39 +00:00
83 lines
4.1 KiB
Markdown
83 lines
4.1 KiB
Markdown
# [<img src="https://cdn.rawgit.com/Khan/KaTeX/84189cd3adae24d92e766d14eb80d6e54f3c7dca/katex-logo.svg" width="130" alt="KaTeX">](https://khan.github.io/KaTeX/)
|
||
[](https://www.npmjs.com/package/katex)
|
||
[](https://circleci.com/gh/Khan/KaTeX)
|
||
[](https://codecov.io/gh/Khan/KaTeX)
|
||
[](https://gitter.im/Khan/KaTeX?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge) [](https://greenkeeper.io/)
|
||
|
||
|
||
KaTeX is a fast, easy-to-use JavaScript library for TeX math rendering on the web.
|
||
|
||
* **Fast:** KaTeX renders its math synchronously and doesn't need to reflow the page. See how it compares to a competitor in [this speed test](http://www.intmath.com/cg5/katex-mathjax-comparison.php).
|
||
* **Print quality:** KaTeX’s layout is based on Donald Knuth’s TeX, the gold standard for math typesetting.
|
||
* **Self contained:** KaTeX has no dependencies and can easily be bundled with your website resources.
|
||
* **Server side rendering:** KaTeX produces the same output regardless of browser or environment, so you can pre-render expressions using Node.js and send them as plain HTML.
|
||
|
||
KaTeX is compatible with all major browsers, including Chrome, Safari, Firefox, Opera, Edge, and IE 9–11.
|
||
|
||
KaTeX supports much (but not all) of LaTeX and many LaTeX packages. See the [list of supported functions](https://khan.github.io/KaTeX/docs/supported.html).
|
||
|
||
Try out KaTeX [on the demo page](https://khan.github.io/KaTeX/#demo)!
|
||
|
||
## Getting started
|
||
|
||
[Download KaTeX](https://github.com/khan/katex/releases) and host it on your server or include the `katex.min.js` and `katex.min.css` files on your page directly from a CDN:
|
||
|
||
```html
|
||
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/katex@0.10.0-beta/dist/katex.min.css" integrity="sha384-9tPv11A+glH/on/wEu99NVwDPwkMQESOocs/ZGXPoIiLE8MU/qkqUcZ3zzL+6DuH" crossorigin="anonymous">
|
||
<script src="https://cdn.jsdelivr.net/npm/katex@0.10.0-beta/dist/katex.min.js" integrity="sha384-U8Vrjwb8fuHMt6ewaCy8uqeUXv4oitYACKdB0VziCerzt011iQ/0TqlSlv8MReCm" crossorigin="anonymous"></script>
|
||
```
|
||
|
||
#### In-browser rendering
|
||
|
||
Call `katex.render` with a TeX expression and a DOM element to render into:
|
||
|
||
```js
|
||
katex.render("c = \\pm\\sqrt{a^2 + b^2}", element);
|
||
```
|
||
|
||
If KaTeX can't parse the expression, it throws a `katex.ParseError` error.
|
||
|
||
#### Rendering expressions in text elements
|
||
|
||
To automatically render math in text elements, include the [auto-render script](https://khan.github.io/KaTeX/docs/autorender.html) `contrib/auto-render.min.js`, or via CDN:
|
||
|
||
```html
|
||
<script src="https://cdn.jsdelivr.net/npm/katex@0.10.0-beta/dist/contrib/auto-render.min.js" integrity="sha384-aGfk5kvhIq5x1x5YdvCp4upKZYnA8ckafviDpmWEKp4afOZEqOli7gqSnh8I6enH" crossorigin="anonymous"></script>
|
||
````
|
||
|
||
Then, call the `renderMathInElement` function with a DOM element containing expressions in a script tag before the closing body tag:
|
||
|
||
```html
|
||
<body>
|
||
...
|
||
<script>
|
||
renderMathInElement(document.body);
|
||
</script>
|
||
</body>
|
||
```
|
||
|
||
See [Auto-render Extension](https://khan.github.io/KaTeX/docs/autorender.html) for more details.
|
||
|
||
#### Server side rendering or rendering to a string
|
||
|
||
To generate HTML on the server or to generate an HTML string of the rendered math, you can use `katex.renderToString`:
|
||
|
||
```js
|
||
var html = katex.renderToString("c = \\pm\\sqrt{a^2 + b^2}");
|
||
// '<span class="katex">...</span>'
|
||
```
|
||
|
||
Make sure to include the CSS and font files, but there is no need to include the JavaScript. Like `render`, `renderToString` throws if it can't parse the expression.
|
||
|
||
## Documentation
|
||
|
||
Learn more about using KaTeX [on the website](https://khan.github.io/KaTeX)!
|
||
|
||
## Contributing
|
||
|
||
See [CONTRIBUTING.md](CONTRIBUTING.md)
|
||
|
||
## License
|
||
|
||
KaTeX is licensed under the [MIT License](http://opensource.org/licenses/MIT).
|