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	0.8.2 (2021-01-01)
MediaWiki	1.29+
Database changes	No
License	MIT License
Download	GitHub: project page git repository URL [help ] commit history Note: No localisation updates are provided by translatewiki.net . README
Example	zetawiki.com
Parameters $wgSmjUseCdn $wgSmjUseChem $wgSmjDisplayMath $wgSmjExtraInlineMath $wgSmjScale $wgSmjEnableMenu $wgSmjDisplayAlign $wgSmjWrapDisplaystyle
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 cdn.jsdelivr.net 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 local MathJax scripts (and not a CDN), then you can use git clone recursive. In most cases, CDN is much faster than your server. However, a CDN may not be available if you have a hardened PHP installation due to disabled_functions restrictions.

$ 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 $wgSmjScale = 1.1; might be all you need to make it Just Work™.

Version	Setting name	Default value	Description
0.7.0+	$wgSmjUseCDN	true	Using CDN or Local resource
0.7.0+	$wgSmjUseChem	true	enable ‎<chem> tags ( defaults to use chem tags )
0.8.0+	$wgSmjEnableMenu	true	Make MathJax context menu available This setting is missed since 0.8.0; it would be a mistake
0.8.0+	$wgSmjExtraInlineMath	[]	can add some additional inlineMath symbols pairs
0.8.1+	$wgSmjScale	1	The default font size for SimpleMathJax
0.7.4	$wgSmjShowMathMenu	false	(removed) (replaced by $wgSmjEnableMenu)
0.6.1	$wgSmjSize	110	(removed) (replaced by $wgSmjScale)
0.6.1	$wgSmjInlineMath	[]	(removed) (replaced by $wgSmjExtraInlineMath)
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 $wgSmjScale like below.

wfLoadExtension( 'SimpleMathJax' );
$wgSmjScale = 1.5;

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

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

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

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

SimpleMathJax and Live Preview (versions < 0.8.0)

Prior to version 0.8.0, the following had to be added to MediaWiki:Common.js in order to have the Live Preview in the editor show rendered math output instead of raw LaTeX source code:

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

• Using MathJax version 3