Extension:SimpleMathJax

MediaWiki extensions manual

SimpleMathJax Release status: stable
Implementation	Tag
Description	Allows to render mathematical formulas using MathJax with MediaWiki math style
Author(s)	jmnote, vedmaka, jamesmontalvo3, badshah400
Latest version	0.7.3 (2018-04-01)
MediaWiki	1.25+
Database changes	No
License	GNU General Public License 3.0
Download	GitHub: project page git repository URL [help] commit history Note: No localisation updates are provided by translatewiki.net . README
Example	zetawiki.com
Parameters $wgSmjSize $wgSmjUseCDN $wgSmjUseChem $wgSmjInlineMath
Hooks used ParserFirstCallInit
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 cdnjs.cloudflare.com on all wiki pages that have math or chem tags.

<math>E=mc^2</math>

Advantages

• 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.

Installation

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

• Add the following code at the bottom of your LocalSettings.php:

  wfLoadExtension( 'SimpleMathJax' );
  

• If necessary configure at your convenience
•  Done – Navigate to Special:Version on your wiki to verify that the extension is successfully installed.

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. ( In most cases, CDN is much faster than your server. )

$ 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

The following variables can be defined in LocalSettings.php after calling wfLoadExtension( 'SimpleMathJax' );. Note that for a simple site adding $wgSmjSize = 110; might be all you need to make it Just Work™.

Version	Setting name	Default value	Description
0.6.1+	$wgSmjSize	110	The default font size for SimpleMathJax
0.6.1+	$wgSmjInlineMath	[]	can add some additional inlineMath symbols pairs
0.7.0+	$wgSmjUseCDN	true	Using CDN or Local resource
0.7.0+	$wgSmjUseChem	true	enable <chem> tags ( defaults to use chem tags )
0.7.4+	wgSmjShowMathMenu	false	Make MathJax context menu available
0.6.1	$wgSmjDisableChem	false	removed (replaced by $wgSmjUseChem)
0.6.1	$wgSmjScripts	['//cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.2/MathJax.js?config=TeX-AMS-MML_HTMLorMML', '//cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.2/extensions/TeX/mhchem.js']	removed (replaced by $wgSmjUseCDN) can use local or another remote scripts ( defaults to use cloudflare CDN )
0.6	$wgSimpleMathJaxSize	125	removed (replaced by $wgSmjSize)
0.6	$wgSimpleMathJaxUseCDN	true	removed (replaced by $wgSmjScripts)
0.6	$wgSimpleMathInlineMath	[]	removed (replaced by $wgSmjInlineMath)

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

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

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

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

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

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

Making SimpleMathJax work with live preview

In order to have the live preview in the editor show rendered math output instead of raw LaTeX source code, add the following to your MediaWiki:Common.js:

function waitForMathJax($content) {
  if (typeof MathJax === 'undefined') {
    setTimeout(function () { waitForMathJax($content); }, 1000);
  } else {
    MathJax.Hub.Queue(["Typeset", MathJax.Hub, $content[0]]).execute();
  }
}

mw.hook('wikipage.content').add(waitForMathJax);

Samples

Comparison

• en:user:Jmkim dot com/TeX Samples (rendering with wikipedia math engines, English)
• ko:user:Jmkim dot com/TeX 샘플 (rendering with wikipedia math engines, Korean)
• http://zetawiki.com/wiki/TeX_샘플 (rendering with SimpleMathJax)

More examples

• http://zetawiki.com/wiki/TeX_문법 (Grammar)
• http://zetawiki.com/wiki/TeX_행렬 (Matrix)
• http://zetawiki.com/wiki/TeX_특수문자 (Special Characters)
• http://zetawiki.com/wiki/Mhchem_테스트 (chem tags)

See also

• Extension:Math

External links

• cdn.mathjax.org is shutting down