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MathJax

Beautiful math in all browsers

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 Components

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.

What's in this Repository

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 es5 directory, and are in ES5 format for the widest possible compatibility. In the future, we may make an es6 directory containing ES6 versions of the components.

Installation and Use

Using MathJax components from a CDN on the web

If you are loading MathJax from a CDN into a web page, there is no need to install anything. Simply use a script tag that loads MathJax from the CDN. E.g.,

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

Hosting your own copy of the MathJax Components

If you want to host MathJax from your own server, you can do so by installing the mathjax package using npm and moving the es5 directory to an appropriate location on your server:

Note that we are still making updates to version 2, so include @3 when you install, since the latest chronological version may not be version 3.

Alternatively, you can get the files via GitHub:

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

where <url-to-your-site> is replaced by the URL to the location where you moved the MathJax files above.

See the documentation for details.

Using MathJax components in a node application

To use MathJax components in a node application, install the mathjax package:

(we are still making updates to version 2, so you should include @3 since the latest chronological version may not be version 3).

Then require mathjax within your application:

where the first { ... } is a MathJax configuration, and the second { ... } is the code to run after MathJax has been loaded. E.g.

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.

Reducing the Size of the Components Directory

Since the es5 directory contains all the component files, so if you are only planning one use one configuration, you can reduce the size of the MathJax directory by removing unused components. For example, if you are using the tex-chtml.js component, then you can remove the tex-mml-chtml.js, tex-svg.js, tex-mml-svg.js, tex-chtml-full.js, and tex-svg-full.js configurations, 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 sre directories. If you are using the results only on the web, you can remove adaptors as well.

If you are not using A11Y support (e.g., speech generation, or semantic enrichment), then you can remove a11y and sre as 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.js rather than tex-chtml.js), you can remove the output/chtml/fonts/woff-v2 directory. If you are using MathML input rather than TeX (e.g., mml-chtml.js rather than tex-chtml.js), then you can remove input/tex/extensions as well.

The Component Files and Pull Requests

The es5 directory is generated automatically from the contents of the MathJax source repository. You can rebuild the components using the command

Note that since the contents of this repository are generated automatically, you should not submit pull requests that modify the contents of the es5 directory. If you wish to submit a modification to MathJax, you should make a pull request in the MathJax source repository.

MathJax Community

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.

MathJax Resources

• MathJax Documentation
• MathJax Components
• MathJax Source Code
• MathJax Web Examples
• MathJax Node Examples
• MathJax Bug Tracker
• MathJax Users' Group