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MediaWiki extensions manualManual:Extensions
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Release status:Extension status stable

ImplementationTemplate:Extension#type Tag
DescriptionTemplate:Extension#description Allows to render mathematical formulas using MathJax with MediaWiki math style
Author(s)Template:Extension#username jmnote, vedmaka, jamesmontalvo3, badshah400
Latest versionTemplate:Extension#version 0.6.1 (2017-06-12)
MediaWikiTemplate:Extension#mediawiki 1.25+
Database changesTemplate:Extension#needs-updatephp No
LicenseTemplate:Extension#license GNU General Public License 3.0
ExampleTemplate:Extension#example zetawiki.com
  • $wgSimpleMathJaxSize
  • $wgSimpleMathJaxUseCDN
  • $wgSimpleMathJaxInlineMath
Hooks usedTemplate:Extension#hook

Translate the SimpleMathJax extension if it is available at translatewiki.net

Check usage and version matrix.

The SimpleMathJax extension enables MathJax, a Javascript library, for typesetting TeX formula in MediaWiki inside math environments. This extension will load resources from mathjax.org on all wiki pages. Since April 30, 2017, cdn.mathjax.org is shutting down proposing alternatives like cdnjs.cloudflare.com for loading resources with a fixed version (see external links). Please change version number accordingly in Configuration settings.

  • Simple
  • Lightweight
  • UTF-8 Support
  • Mobile View OK
  • Setting Font Size
  • chem tag support for chemistry
  • additional inlineMath symbols pairs support
  • MediaWiki Style! Look at the samples.


  • Download and place the file(s) in a directory called SimpleMathJax in your extensions/ folder.

To users running MediaWiki 1.24 or earlier:

The instructions above describe the new way of installing this extension using wfLoadExtension() If you need to install this extension on these earlier versions (MediaWiki 1.24 and earlier), instead of wfLoadExtension( 'SimpleMathJax' );, you need to use:

require_once "$IP/extensions/SimpleMathJax/SimpleMathJax.php";

Or you can git clone.

$ git clone https://github.com/jmnote/SimpleMathJax.git

If you want to use not CDN but local mathjax scripts, you can use git clone recursive. ( MathJax is pretty heavy. )

$ git clone --recursive https://github.com/jmnote/SimpleMathJax.git

SimpleMathJax is meant to be used as an alternative to the Math extension. If the Math extension is installed it may take precedence and cause SimpleMathJax to not work. The SimpleMathJax extension is the only thing you need to start rendering equations.

Configuration settings[edit]

The following variables can be defined in LocalSettings.php after calling require_once "$IP/extensions/SimpleMathJax/SimpleMathJax.php";. Note that for a simple site adding $wgSimpleMathJaxSize = 125; might be all you need to make it Just Work™.

Setting name Default value Description
$wgSimpleMathJaxSize 125 The default font size for SimpleMathJax; defaults to 125
$wgSimpleMathJaxUseCDN true use CDN files instead of local files
$wgSimpleMathJaxInlineMath [] add some additional inlineMath symbols pairs

If you want to change font size, set $wgSimpleMathJaxSize like below.

wfLoadExtension( 'SimpleMathJax' );
$wgSimpleMathJaxSize = 150;

If you want to use local module, set $wgSimpleMathJaxUseCDN like below.

wfLoadExtension( 'SimpleMathJax' );
$wgSimpleMathJaxUseCDN = false;

If you want to enable some additional inlineMath symbol pairs, set $wgSimpleMathJaxInlineMath like below.

wfLoadExtension( 'SimpleMathJax' );
$wgSimpleMathJaxInlineMath = [["$","$"],["\\(","\\)"]];


More examples

See also[edit]

External links[edit]