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Showing content from https://www.mediawiki.org/wiki/Extension:SimpleMathJax below:

Extension:SimpleMathJax - MediaWiki

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.

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.

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 file:
```
wfLoadExtension( 'SimpleMathJax' );
```
Configure at your convenience
Done – Navigate to Special:Version on your wiki to verify that the extension is successfully installed.

Or you can git clone.

$ git clone --depth 1 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 --depth 1 --recursive --shallow-submodules 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.

The following variables can be defined in your "LocalSettings.php" file 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;

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)

Extension:Math

Using MathJax version 3

This extension is included in the following wiki farms/hosts and/or packages: This is not an authoritative list. Some wiki farms/hosts and/or packages may contain this extension even if they are not listed here. Always check with your wiki farms/hosts or bundle to confirm.

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