MediaWiki

Extension:Math

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Manuel des extensions MediaWiki
OOjs UI icon advanced.svg
Math
État de la version : stable
ExtensionMath (cropped).png
Implémentation Balise
Description Permet d'afficher des formules mathématiques
Auteur(s)
  • Moritz Schubotz,
  • Tomasz Wegrzanowski,
  • Brion Vibber
  • et d'autres
Dernière version continuous updates
MediaWiki 1.25+
Modifie la base de données Oui
Tables math
mathoid
mathlatexml
Licence Licence publique générale GNU v2.0 ou supérieur
Téléchargement
Télécharger l'extension
Git [?]:
Paramètres
  • $wgMathEnableWikibaseDataType
  • $wgMathDefaultLaTeXMLSetting
  • $wgMathWikibasePropertyIdHasPart
  • $wgMathoidCli
  • $wgMathLaTeXMLTimeout
  • $wgMathWikibasePropertyIdQuantitySymbol
  • $wgMathDisableTexFilter
  • $wgMathMathMLTimeout
  • $wgMathLaTeXMLUrl
  • $wgMathEnableExperimentalInputFormats
  • $wgMathValidModes
  • $wgMathWikibasePropertyIdDefiningFormula
  • $wgMathFullRestbaseURL
  • $wgMathMathMLUrl
  • $wgMathConcurrentReqs
  • $wgMathEnableFormulaLinks
Balises
<math>
Accroches utilisées
Accroches fournies
Traduisez l’extension Math sur translatewiki.net
Vérifiez la matrice des utilisations et des versions.
Problèmes Tâches ouvertes · Signalez un bogue

L'extension Math fournit une gestion pour l'affichage de formules mathématiques. Un tour d'horizon de ce qui peut actuellement être fait avec cette extension est disponible dans la documentation de Wikipédia anglophone.

Plus d'informations, sur comment installer et configurer cette extension, y compris pour des versions plus anciennes, peuvent être trouvées à Extension:Math/advancedSettings .

Afficher des maths

L'extension Math essaye de produire un affichage MathMl, avec une sortie en images SVG ou PNG. Selon les capacités de l'appareil utilisé, le type de sortie est choisie. Les mathématiques de bases peuvent être affichées sur n'importe quel navigateur. Néanmoins, pour un rendu optimal, des configurations supplémentaires seront nécessaires :

Accessibility support is provided by the VoiceOver screen reader but not by Orca yet.

Installation

  • Si vous utilisez Vagrant , installez avec vagrant roles enable math --provision
Installation manuelle
  • Téléchargez et placez le(s) fichiers (s) dans un répertoire appelé Math dans votre dossier extensions/.
  • Ajoutez le code suivant à la fin de votre fichier LocalSettings.php : 
    wfLoadExtension( 'Math' );
// See below for installation requirements and configuration settings:
  • Exécutez le script de mise à jour qui va créer automatiquement les tables de base de données dont cette extension a besoin.
  • To see math beyond a plain text output, follow instructions below for enabling various math output modes.
  •   Fait – Accédez à Special:Version sur votre wiki pour vérifier que l'extension a bien été installée.

You should additionally go to the page Special:MathStatus to see whether all of the components of the Math extension now work. For any problems you see, the best option is to create a task on https://phabricator.wikimedia.org

Unfortunately, there is no well tested guide on installing Mathoid and RESTBase to work with the Math extension, but there is at least a working draft. Extension:Math/Restbase please contribute.

In addition, there is a Guide for Installing and Setting up Mediawiki with Restbase and Mathoid in MW1.28.

Modes de sortie de Math

The setting $wgMathValidModes holds an array with the names of output modes that can be used for rendering. If multiple modes are enabled, logged-in users can set a personal preference in the appearance pane of their user preferences page.

You can also use the $wgDefaultUserOptions setting to set which of these modes should be the default, e.g.: 

$wgDefaultUserOptions['math'] = 'mathml';

Mathoid

Mode : 'mathml' (pre-July 2015: MW_MATH_MATHML)

For MW 1.23 and higher, you can use a Mathoid server that uses MathJax to convert texvc input on the server side to MathML+SVG rendering. This is the most recommended option; Mathoid is the rendering mode that will be used on Wikipedia in the future.

Mathoid en tant que service

To use Mathoid as a service, resulting in performance benefits, the following settings are recommended: 

// Set MathML as default rendering option
$wgDefaultUserOptions['math'] = 'mathml';
$wgMathFullRestbaseURL = 'https://en.wikipedia.org/api/rest_';
$wgMathMathMLUrl = 'https://mathoid-beta.wmflabs.org/';

See Mathoid for instructions on how to run your own Mathoid server. Note that as of March 2017 this is likely to also require a RESTBase server/installation (see tâche T154394).

Interface CLI de Mathoid

To use Mathoid's CLI interface, which is possibly easier to set up and resulting in less permanent memory consumption, while degrading performance, the following settings are recommended: 

// Set MathML as default rendering option
$wgDefaultUserOptions['math'] = 'mathml';
// Please create a config.yaml in advance. Templates are in the Mathoid repository.
$wgMathoidCli = ['/path/to/mathoid/cli.js', '-c', '/path/to/mathoid/config.yaml'];
// Raise MediaWiki's memory limit to 1.2G for mathoid.
$wgMaxShellMemory = 1228800;

If you run MediaWiki under system containing SELinux and you get Mathoid cli '/path/to/mathoid/cli.js' is not executable message from the error log, you can run 

setsebool -P httpd_execmem 1
setsebool -P httpd_setrlimit 1

to make sure the Apache server allow to change system limits.

LaTeX

Mode : 'png' (pre-July 2015: MW_MATH_PNG)

Since MediaWiki 1.32, this mode will also require a Mathoid server to work. In older versions, it requires installing texvc and texvccheck, which may require the most setup work.

LaTeXML

Mode : 'latexml' (pre-July 2015: MW_MATH_LATEXML)

Servez-vous de l'utilitaire LaTeXML. The rendering is done via an online service (set with $wgLaTeXMLUrl, which has a default value).

Pas de rendu

Mode : 'source', (pre-July 2015: MW_MATH_SOURCE)

This mode will forward the Latex input without rendering, presenting it in a <span> element, surrounded by $ :formula $.

Make sure to set $wgMathDisableTexFilter to 'always' (see below) if you only want the raw latex formula, else an error will appear due to the failed check for PNG depictions.

MathJax

  Avertissement : The client-side MathJax rendering mode is removed in MediaWiki 1.26. Une alternative peut être Extension:SimpleMathJax .

Liste de paramètres de configuration significatifs

Nom de paramètre Valeur par défaut Description
$wgMathValidModes array( 'png', 'source', 'mathml' ) Définit le mode autorisé sur le serveur.
$wgMathDisableTexFilter 'never' Option to disable the tex filter. If set to true any LaTeX expression is parsed this can be a potential security risk. If set to false only a subset of the TeX commands is allowed. See the wikipedia page Help:Math for details. Use "always" to disable this feature.
$wgMathFullRestbaseURL false The math extension gets the default config from the Visual Editor, if available. Détails.

Tracking categories

The extension creates a number of tracking categories to detect errors and deprecated features. The exact name of the categories is determined by pages in the MediaWiki namespace.

MediaWiki page Default Description
MediaWiki:Math-tracking-category-error Category:Pages with math errors Pages where there is a syntax error in the formula causing the rendering to fail
MediaWiki:Math-tracking-category-render-error Category:Pages with math render errors Pages where there has been a temporary error in the rendering pipeline causing the rendering to fail. These normally fix themselves
MediaWiki:Math-tracking-category-texvc-deprecation Category:Pages that use a deprecated format of the math tags Pages which use deprecated texvc syntax like $ % \and \or \part \ang \C \H \bold \Bbb\ \pagecolor, which should be replaced by more standard LaTeX \$ \% \land \lor \partial \angle \Complex \mathbb{H} \mathbf \mathbb (removed) respectively. See Extension:Math/Roadmap .
MediaWiki:Math-tracking-category-mhchem-deprecation Category:Pages that use a deprecated format of the chem tags

Deprecated chemical markup, see Extension:Math/Roadmap#Step 1 Part C: Manual fixing of mhchem syntax.

Trucs et astuces

  • You can use the Firefox MathML copy addon to copy formulae to other applications such as Microsoft Word (video), or Google docs with the g(Math) plugin (video)
  • You can override the user preferred and default rendermode by adding the forcemathmode attribute to the <math> element. eg.. to force an image being rendered <math forcemathmode="png">...</math>.

Rapporter les erreurs

If something is wrong with the math extension you can report that at Phabricator. In addition you should check how your problem relates to the automated unit tests that are generated from the page CoverageTest.

Lectures complémentaires

See Extension:Math/advancedSettings for old versions and further information.

Sous-pages

Voir aussi

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