Beautiful and accessible math in all browsers

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MathJax is an open-source JavaScript display engine for LaTeX, MathML, and AsciiMath notation that works in all modern browsers. It was designed with the goal of consolidating the recent advances in web technologies into a single, definitive, math-on-the-web platform supporting the major browsers and operating systems. It requires no setup on the part of the user (no plugins to download or software to install), so the page author can write web documents that include mathematics and be confident that users will be able to view it naturally and easily. Simply include MathJax and some mathematics in a web page, and MathJax does the rest.

Some of the main features of MathJax include:

High-quality display of LaTeX, MathML, and AsciiMath notation in HTML pages

Supported in most browsers with no plug-ins, extra fonts, or special setup for the reader

Easy for authors, flexible for publishers, extensible for developers

Supports math accessibility, cut-and-paste interoperability, and other advanced functionality

Powerful API for integration with other web applications

See http://www.mathjax.org/ for additional details about MathJax, and https://docs.mathjax.org for the MathJax documentation.

MathJax version 3 uses files called *components* that contain the
various MathJax modules that you can include in your web pages or
access on a server through NodeJS. Some components combine all the
pieces you need to run MathJax with one or more input formats and a
particular output format, while other components are pieces that can
be loaded on demand when needed, or by a configuration that specifies
the pieces you want to combine in a custom way. For usage
instructions, see the MathJax documentation.

Components provide a convenient packaging of MathJax's modules, but it is possible for you to form your own custom components, or to use MathJax's modules directly in a node application on a server. There are web examples showing how to use MathJax in web pages and how to build your own components, and node examples illustrating how to use components in node applications or call MathJax modules directly.

This repository contains only the component files for MathJax, not the source code for MathJax (which are available in a separate MathJax source repository). These component files are the ones served by the CDNs that offer MathJax to the web. In version 2, the files used on the web were also the source files for MathJax, but in version 3, the source files are no longer on the CDN, as they are not what are run in the browser.

The components are stored in the

es5directory, and are in ES5 format for the widest possible compatibility. In the future, we may make an

es6directory containing ES6 versions of the components.

If you are loading MathJax from a CDN into a web page, there is no need to install anything. Simply use a

scripttag that loads MathJax from the CDN. E.g.,

See the MathJax documentation, the MathJax Web Demos, and the MathJax Component Repository for more information.

If you want to host MathJax from your own server, you can do so by installing the

mathjaxpackage using

npmand moving the

es5directory to an appropriate location on your server:

npm install [email protected] mv node_modules/mathjax/es5 /mathjax

Note that we are still making updates to version 2, so include

@3when you install, since the latest chronological version may not be version 3.

Alternatively, you can get the files via GitHub:

git clone https://github.com/mathjax/MathJax.git mj-tmp mv mj-tmp/es5 /mathjax rm -rf mj-tmp

Then (in either case) you can use a script tag like the following:

where

is replaced by the URL to the location where you moved the MathJax files above.See the documentation for details.

To use MathJax components in a node application, install the

mathjaxpackage:

npm install [email protected]

(we are still making updates to version 2, so you should include

@3since the latest chronological version may not be version 3).

Then require

mathjaxwithin your application:

require('mathjax').init({ ... }).then((MathJax) => { ... });

where the first

{ ... }is a MathJax configuration, and the second

{ ... }is the code to run after MathJax has been loaded. E.g.

require('mathjax').init({ loader: {load: ['input/tex', 'output/svg']} }).then((MathJax) => { const svg = MathJax.tex2svg('\\frac{1}{x^2-1}', {display: true}); console.log(MathJax.startup.adaptor.outerHTML(svg)); }).catch((err) => console.log(err.message));

**Note:** this technique is for node-based application only, not for
browser applications. This method sets up an alternative DOM
implementation, which you don't need in the browser, and tells MathJax
to use node's

require()command to load external modules. This setup will not work properly in the browser, even if you webpack it or bundle it in other ways.

See the documentation and the MathJax Node Repository for more details.

Since the

es5directory contains

tex-chtml.jscomponent, then you can remove the

tex-mml-chtml.js,

tex-svg.js,

tex-mml-svg.js,

tex-chtml-full.js, and

tex-svg-full.jsconfigurations, which will save considerable space. Indeed, you should be able to remove everything other than

tex-chtml.js, and the

input/tex/extensions,

output/chtml/fonts/woff-v2,

adaptors,

a11y, and

sredirectories. If you are using the results only on the web, you can remove

adaptorsas well.

If you are not using A11Y support (e.g., speech generation, or semantic enrichment), then you can remove

a11yand

sreas well (though in this case you may need to disable the assistive tools in the MathJax contextual menu in order to avoid MathJax trying to load them when they aren't there).

If you are using SVG rather than CommonHTML output (e.g.,

tex-svg.jsrather than

tex-chtml.js), you can remove the

output/chtml/fonts/woff-v2directory. If you are using MathML input rather than TeX (e.g.,

mml-chtml.jsrather than

tex-chtml.js), then you can remove

input/tex/extensionsas well.

The

es5directory is generated automatically from the contents of the MathJax source repository. You can rebuild the components using the command

npm run make-es5 --silent

Note that since the contents of this repository are generated automatically, you should not submit pull requests that modify the contents of the

es5directory. If you wish to submit a modification to MathJax, you should make a pull request in the MathJax source repository.

The main MathJax website is http://www.mathjax.org, and it includes announcements and other important information. A MathJax user forum for asking questions and getting assistance is hosted at Google, and the MathJax bug tracker is hosted at GitHub.

Before reporting a bug, please check that it has not already been reported. Also, please use the bug tracker (rather than the help forum) for reporting bugs, and use the user's forum (rather than the bug tracker) for questions about how to use MathJax.