# Extensión:Math

This page is a translated version of the page Extension:Math and the translation is 13% complete.
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Extensión matemática MediaWiki
Math
Implementación Etiqueta
Descripción Allows to render mathematical formulas
Autor(es)
• Moritz Schubotz,
• Tomasz Wegrzanowski,
• Brion Vibber
• and others
Política de compatibilidad Snapshots releases along with MediaWiki. Master is not backward compatible.
MediaWiki 1.25+
Cambios de la base de datos
Tablas math
mathoid
mathlatexml
Licencia GNU Licencia Pública general 2.0 o más tarde
Descarga
• $wgMathEnableWikibaseDataType •$wgMathDefaultLaTeXMLSetting
• $wgMathWikibasePropertyIdHasPart •$wgMathoidCli
• $wgMathLaTeXMLTimeout •$wgMathWikibasePropertyIdQuantitySymbol
• $wgMathDisableTexFilter •$wgMathMathMLTimeout
• $wgMathLaTeXMLUrl •$wgMathEnableExperimentalInputFormats
• $wgMathValidModes •$wgMathWikibasePropertyIdDefiningFormula
• $wgMathFullRestbaseURL •$wgMathMathMLUrl
• $wgMathConcurrentReqs •$wgMathEnableFormulaLinks
‎<math>
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The Math extension provides support for rendering mathematical formulae. An overview of what can currently be done with this extension is available at the English Wikipedia's documentation.

## Viewing math

The Math extension tries to deliver MathML output, with fallback to images in SVG (converting characters to <path>s) or PNG (least preferentially). Depending on the capabilities of the device you are using, the sort of output is chosen. Basic math support works for all browsers. However, for optimal rendering specific tuning may be needed:

Accessibility support is provided by NVDA, VoiceOver or Orca. Additionally, NVDA requires the MathPlayer plugin to read mathematics.

• For Safari or other WebKit browsers, you may also install math fonts and enable native MathML rendering by inserting some CSS rules into the custom style sheet of your browser preference.

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

## Instalación

• Si usas Vagrant, instala con vagrant roles enable math --provision
Instalación manual
• Descarga y extrae los archivos en el directorio «Math» dentro del directorio extensions/ existente.
• Añade el siguiente código a tu LocalSettings.php (preferiblemente al final):
wfLoadExtension( 'Math' );
// See below for installation requirements and configuration settings:

• Ejecuta el script de actualización, que creará automáticamente las tablas que necesita esta extensión en la base de datos.
• To see math beyond a plain text output, follow instructions below for enabling various math output modes.
• If you have problems for represent formulas when trying to use wikipedia restbase, you can try using the following patch
•   Hecho – Navega a Special:Version en tu wiki para verificar que la apariencia se haya instalado correctamente.

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.

## Math output modes

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.:

$wgDefaultUserOptions['math'] = 'mathml';  ### Mathoid Modo: 'mathml' (pre-July 2015: MW_MATH_MATHML) For MW 1.23 and higher, you can use a Mathoid server that uses MathJax to convert texvc input on the server side to MathML+SVG rendering. This is the most recommended option; Mathoid is the rendering mode that is on Wikipedia. #### Mathoid as a service To use Mathoid as a service, resulting in performance benefits, the following settings are recommended: // Set MathML as default rendering option$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 task T154394).

#### Mathoid's CLI interface

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.

### No rendering

Modo: '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 $wgMathDisableTexFilter to 'always' (see below) if you only want the raw latex formula, else an error will appear due to the failed check for PNG depictions. ### MathJax  Advertencia: The client-side MathJax rendering mode is removed in MediaWiki 1.26. See Extensión:SimpleMathJax for an alternative. ## Lista de todas las opciones de configuración Establecer el nombre Valor predeterminado Descripción$wgMathValidModes array( 'png', 'source', 'mathml' ) Defines the mode allowed on the server.
$wgMathDisableTexFilter 'never' Option to disable the tex filter. If set to true any LaTeX expression is parsed this can be a potential security risk. If set to false only a subset of the TeX commands is allowed. See the wikipedia page Help:Math for details. Use "always" to disable this feature.$wgMathFullRestbaseURL false The math extension gets the default config from the Visual Editor, if available. Detalles.

## 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.
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.

## Tips and tricks

• You can override the user preferred and default rendermode by adding the forcemathmode attribute to the ‎<math> element. e.g. to force an image being rendered <math forcemathmode="png">...</math>.
• All images of rendered formula are stored in a cache and not automatically recreated if the page is viewed or edited.

To force the re-rendering of all formulas of a page, purge using the ?action=purge&mathpurge=true action. For example the URL https://en.wikipedia.org/w/index.php?title=Integral&action=purge&mathpurge=true will force re-rendering of the w:Integer article. Afterwards you need to bypass your browser cache so that the new created images of the formulas are actually downloaded.

## Reporte de errores

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.