확장기능:Math

이슈 트래커: #Math
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이 확장 기능은 미디어위키 1.38 이상에서 포함됩니다. 따라서 다시 다운로드하지 않아도 됩니다. 하지만 여전히 제공되는 별개의 지침을 따라야 합니다.
미디어위키 확장 기능 설명서
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Math
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MediaWiki >= 1.39.0
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테이블 math
mathoid
mathlatexml
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확장 기능 다운로드
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변수
  • $wgMathEnableWikibaseDataType
  • $wgMathDefaultLaTeXMLSetting
  • $wgMathUseInternalRestbasePath
  • $wgMathMathMLUrl
  • $wgMathFullRestbaseURL
  • $wgMathLaTeXMLUrl
  • $wgMathConcurrentReqs
  • $wgMathEnableFormulaLinks
  • $wgMathValidModes
  • $wgMathEntitySelectorFallbackUrl
  • $wgMathWikibasePropertyIdQuantitySymbol
  • $wgMathDisableTexFilter
  • $wgMathMathMLTimeout
  • $wgMathWikibasePropertyIdSymbolRepresents
  • $wgMathWikibasePropertyIdInDefiningFormula
  • $wgMathWikibasePropertyIdDefiningFormula
  • $wgMathWikibasePropertyIdHasPart
  • $wgMathoidCli
  • $wgMathLaTeXMLTimeout
  • $wgMathEnableExperimentalInputFormats
태그
‎<math>
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훅 제공
Math 확장 기능 번역 (translatewiki.net에서 가능한 경우)
이슈 미해결 작업 · 버그 보고

"Math" 확장 기능은 수학적 공식의 렌더링을 제공합니다. 이 확장 기능으로 무엇을 할 수 있는지에 대해서는 다음을 참조 영문 위키백과 'Displaying_a_fomula'.

More information about installing and configuring this extension, including for older versions, can be found at 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.

설치

  • 파일을 다운로드하고 Math 폴더를 extensions/ 디렉토리에 넣어 주세요.
  • 아래의 코드를 $LocalSettings의 말미에 추가합니다: 
    wfLoadExtension( 'Math' );
  • 갱신 스크립트를 실행합니다. 이 스크립트는 이 확장기능을 필요로 하는 데이터 베이스 테이블을 자동적으로 작성합니다.
  • 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 완료 – 위키의 ‘Special:Version’에 이동해서, 확장기능이 올바르게 설치된 것을 확인합니다.


Vagrant installation:

  • Vagrant 를 사용하고 있는 경우에는, vagrant roles enable math --provision로 설치해주세요

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 출력 모드

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'

You can use Mathoid, an application that uses MathJax on the server side to convert texvc input to MathML+SVG rendering. This is the most recommended option; Mathoid is the Math rendering mode used on Wikipedia.

Mathoid as a service

"Mathoid as a service" is the recommended approach for the Math extension, and the default one. If you do not add any additional settings to LocalSettings.php, Math will use the Wikimedia Mathoid and RESTBase services to do all math formula rendering. The default settings are: 

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

You can modify these settings in order use different Mathoid and RESTBase services, potentially including your own.

Mathoid's CLI interface

You can instead run Mathoid as a command-line utility on the local server. To use this approach, 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 in a system containing SELinux and you get the message Mathoid cli '/path/to/mathoid/cli.js' is not executable in the error log, you can run the following to make sure that the Apache server allows to change system limits: 

setsebool -P httpd_execmem 1
setsebool -P httpd_setrlimit 1

LaTeX

Mode: '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'

Uses the LaTeXML utility. The rendering is done via an online service (set with $wgLaTeXMLUrl, which has a default value of https://latexml.formulasearchengine.com/convert).

No rendering

Mode: '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.

List of significant configuration settings

설정 이름 기본값 설명
$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.

Error reporting

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/advancedSettings for old versions and further information.

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