Extension:Math

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Довідка про розширення MediaWiki
OOjs UI icon advanced-invert.svg
Math
Статус релізу: стабільний
ExtensionMath (cropped).svg
Реалізація Tag
Опис Дозволяє рендерити математичні формули
Автор(и)
  • Moritz Schubotz,
  • Tomasz Wegrzanowski,
  • Brion Vibber
  • та інші
Найновіша версія continuous updates
Compatibility policy Snapshots releases along with MediaWiki. Master is not backward compatible.
MediaWiki 1.25+
Зміни в БД Yes
Tables math
mathoid
mathlatexml
Ліцензія GNU General Public License 2.0 or later
Завантажити
Download extension
Git [?]:
Параметри
  • $wgMathEnableWikibaseDataType
  • $wgMathDefaultLaTeXMLSetting
  • $wgMathWikibasePropertyIdHasPart
  • $wgMathoidCli
  • $wgMathLaTeXMLTimeout
  • $wgMathWikibasePropertyIdQuantitySymbol
  • $wgMathDisableTexFilter
  • $wgMathMathMLTimeout
  • $wgMathLaTeXMLUrl
  • $wgMathEnableExperimentalInputFormats
  • $wgMathValidModes
  • $wgMathWikibasePropertyIdDefiningFormula
  • $wgMathFullRestbaseURL
  • $wgMathMathMLUrl
  • $wgMathConcurrentReqs
  • $wgMathEnableFormulaLinks
Теги
‎<math>
Використані hook'и
Hooks provided
Translate the Math extension if it is available at translatewiki.net

Переглянути використання

Issues Open tasks · Report a bug

Розширення Math забезпечує підтримку рендерингу математичних формул. Огляд того, що нині можна робити з цим розширенням, доступний у документації Англійської Вікіпедії.

Більше інформації про встановлення та налаштування розширення, включно зі старішими версіями, можна знайти на Extension:Math/advancedSettings .

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.

Installation

  • Якщо використовується Vagrant , встановіть з vagrant roles enable math --provision
Ручне встановлення
  • Завантажте і розмістіть файли в каталозі з назвою Math у вашій extensions/ папці.
  • Додайте такий код унизу вашого LocalSettings.php: 
    wfLoadExtension( 'Math' );
// See below for installation requirements and configuration settings:
  • Запустіть скрипт оновлення, який автоматично створить необхідні таблиці бази даних, які потрібні цьому розширенню.
  • 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
  • Yes Готово – Перейдіть до Special:Version вашої вікі, щоб переконатися, що розширення встановлено успішно.

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.

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

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 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.
$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 the following to make sure the Apache server allow to change system limits: 

setsebool -P httpd_execmem 1
setsebool -P httpd_setrlimit 1

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)

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 $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

Увага Увага: The client-side MathJax rendering mode is removed in MediaWiki 1.26. See Extension:SimpleMathJax for an alternative.


List of significant configuration settings

Setting name Default value Description
$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. Details.

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.

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.

Звітування про помилки

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.

Подальше читання

Старі версії та подальшу інформацію див. у Extension:Math/advancedSettings .

Підсторінки

Див. також

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