Proyecto Phabricator: #Math


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MediaWiki extensions manualManual:Extensions
Crystal Clear action run.png

Release status:Extension status estable

ImplementaciónTemplate:Extension#type Tag
DescripciónTemplate:Extension#description Allows to render mathematical formulas
Autor(es)Template:Extension#username Tomasz Wegrzanowski, Brion Vibber and others
Latest versionTemplate:Extension#version continuous updates
MediaWikiTemplate:Extension#mediawiki 1.23+
Cambios de la base de datosTemplate:Extension#needs-updatephp
TablasTemplate:Extension#table1 mathExtension:Math/math table
mathoidExtension:Math/mathoid table
mathlatexmlExtension:Math/mathlatexml table
LicenciaTemplate:Extension#license GNU General Public License 2.0 or later
  • $wgUseTeX
  • $wgTexvc
  • $wgTexvcBackgroundColor
  • $wgMathCheckFiles
  • $wgMathPath
  • $wgMathDirectory
  • $wgMathFileBackend
Hooks que usaTemplate:Extension#hook

Translate the Math extension if it is available at

Verificar uso y versión de la matriz.


Tareas abiertas · Reportar un bug

The Math extension provides support for rendering mathematical formulae. An overview of what can currently be done with this extension is found at the English Wikipedia's documentation.

This extension was part of core MediaWiki until MediaWiki version 1.18.

More information about installing and configuring this extension, including for older versions, can be found at Extension:Math/advancedSettingsExtension:Math/advancedSettings.

Viewing math

The Math extension tries to deliver MathML output, with fallback to SVG or PNG images respectively. 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 the VoiceOver screen reader but not by Orca yet.


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.
  • YesY Listo - Navega a Special:Version en tu wiki para verificar que la apariencia se haya instalado correctamente.

Para quienes usan MediaWiki 1.24 o versiones anteriores:

Estas instrucciones describen la nueva forma de instalar extensiones a partir de MediaWiki 1.25, usando wfLoadExtension().

Si necesitas instalar esta extensión en versiones anteriores, debes usar lo siguiente en lugar de wfLoadExtension( 'Math' );:

require_once "$IP/extensions/Math/Math.php";

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

Unfortunately, there is no well tested guide on installing MathoidMathoid and RestbaseRestbase to work with the Math extension, but there is at least a working draft. Extension:Math/RestbaseExtension: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';


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.

To use Mathoid, the following settings are recommended:

// Set MathML as default rendering option
$wgDefaultUserOptions['math'] = 'mathml';
$wgMathFullRestbaseURL= '';

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).

A production wiki should use its own Mathoid server. Availability of is not guaranteed.


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

This is the mode that requires the most setup work, since at least the texvc utility has to be installed for it to work, and ideally texvccheck as well. See Installing texvc for how to install both of these.


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

Uses the LaTeXML utility. The rendering is done via an online service (set with $wgLaTeXMLUrl, which has a default value).

No rendering

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 $wgMathFullRestbaseURL 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.



This mode uses the MathJax application for client-side rendering. It is now deprecated, and requires MediaWiki 1.25 or lower in order to run. See Client-side rendering with MathJax for how to use it.

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.
$wgMathDisableTexFilterManual:$wgMathDisableTexFilter 'never' Option to disable the tex filter. If set to true any LaTeX espression 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. Details

Tips and tricks

Forcing a re-render of equations

Specifying the URL-parameter action=purge does not force the math equation to re-render the math tags. If a complete re-rendering of the math tags is desired the URL-parameter action=purge&mathpurge=true has to be passed. Be aware that this might cause side effects with other pages since the math extension uses the hash of the input TeX-input-string as the caching key. e.g. if you would force the re-rending with mathpurge option for a page containing the equation $E=mc^2$, the new rendering result would be used on all other pages containing $E=mc^2$ after the individual page caches are invalidated.

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.

Further reading

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


Véase también