Projection (linear algebra)

Projection - linear transformation that, when applied multiple times to any value, gives the same result as if it were applied once. Article “Projection (linear algebra)” in English Wikipedia has 54.1 points for quality (as of July 1, 2026). The article contains 15 references and 22 sections.

In this language version of Wikipedia the article has the best quality. Also, this article is the most popular in that (English) language version.

Since the creation of article “Projection (linear algebra)”, its content was written by 184 registered users of English Wikipedia and edited by 519 registered Wikipedia users in all languages.

The article is cited 711 times in English Wikipedia and cited 2118 times in all languages.

The highest Authors Interest rank from 2001:

• Local (English): #2717 in February 2004
• Global: #8660 in February 2005

The highest popularity rank from 2008:

• Local (English): #45139 in November 2014
• Global: #59134 in November 2014

There are 20 language versions for this article in the WikiRank database (of the considered 55 Wikipedia language editions).

The quality and popularity assessment was based on Wikipédia dumps from July 1, 2026 (including revision history and pageviews for previous years).

The table below shows the language versions of the article with the highest quality.

#	Language	Quality grade	Quality score
1	English (en) Projection (linear algebra)		54.0506
2	Greek (el) Προβολή (γραμμική άλγεβρα)		46.4066
3	Spanish (es) Operador de proyección		40.087
4	Chinese (zh) 投影 (线性代数)		35.2896
5	Portuguese (pt) Projeção (álgebra linear)		34.9086
6	Polish (pl) Rzut (algebra liniowa)		24.9769
7	Vietnamese (vi) Phép chiếu (đại số tuyến tính)		24.1474
8	French (fr) Projecteur (mathématiques)		19.5946
9	Japanese (ja) 射影作用素		19.1396
10	Czech (cs) Projekce (lineární algebra)		18.8153

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The following table shows the most popular language versions of the article.

The most popular language versions of the article "Projection (linear algebra)" in all the time

#	Language	Popularity award	Relative popularity
1	English (en) Projection (linear algebra)		3 339 311
2	Italian (it) Proiezione (geometria)		452 521
3	French (fr) Projecteur (mathématiques)		432 901
4	German (de) Projektion (lineare Algebra)		242 536
5	Russian (ru) Проектор (математика)		122 410
6	Japanese (ja) 射影作用素		121 997
7	Polish (pl) Rzut (algebra liniowa)		113 243
8	Hebrew (he) הטלה (מתמטיקה)		103 607
9	Spanish (es) Operador de proyección		86 198
10	Chinese (zh) 投影 (线性代数)		39 689

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The following table shows the language versions of the article with the highest popularity in the last month.

The most popular language versions of the article "Projection (linear algebra)" in June 2026

#	Language	Popularity award	Relative popularity
1	English (en) Projection (linear algebra)		5 183
2	French (fr) Projecteur (mathématiques)		787
3	German (de) Projektion (lineare Algebra)		653
4	Chinese (zh) 投影 (线性代数)		488
5	Polish (pl) Rzut (algebra liniowa)		335
6	Hebrew (he) הטלה (מתמטיקה)		319
7	Japanese (ja) 射影作用素		303
8	Russian (ru) Проектор (математика)		298
9	Italian (it) Proiezione (geometria)		251
10	Spanish (es) Operador de proyección		195

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The following table shows the language versions of the article with the highest Authors’ Interest.

Language versions of the article "Projection (linear algebra)" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.

#	Language	AI award	Relative AI
1	English (en) Projection (linear algebra)		184
2	Italian (it) Proiezione (geometria)		62
3	French (fr) Projecteur (mathématiques)		61
4	German (de) Projektion (lineare Algebra)		42
5	Russian (ru) Проектор (математика)		32
6	Hebrew (he) הטלה (מתמטיקה)		26
7	Polish (pl) Rzut (algebra liniowa)		22
8	Spanish (es) Operador de proyección		19
9	Chinese (zh) 投影 (线性代数)		19
10	Japanese (ja) 射影作用素		14

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The following table shows the language versions of the article with the highest Authors’ Interest in the last month.

Language versions of the article "Projection (linear algebra)" with the highest AI in June 2026

#	Language	AI award	Relative AI
1	Arabic (ar) إسقاط (هندسة)		2
2	Catalan (ca) Operador de projecció		0
3	Czech (cs) Projekce (lineární algebra)		0
4	German (de) Projektion (lineare Algebra)		0
5	Greek (el) Προβολή (γραμμική άλγεβρα)		0
6	English (en) Projection (linear algebra)		0
7	Spanish (es) Operador de proyección		0
8	Finnish (fi) Projektio (lineaarialgebra)		0
9	French (fr) Projecteur (mathématiques)		0
10	Hebrew (he) הטלה (מתמטיקה)		0

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The following table shows the language versions of the article with the highest number of citations.

Language versions of the article "Projection (linear algebra)" with the highest Citation Index (CI)

#	Language	CI award	Relative CI
1	English (en) Projection (linear algebra)		711
2	Japanese (ja) 射影作用素		187
3	Slovenian (sl) Projekcija (linearna algebra)		176
4	French (fr) Projecteur (mathématiques)		145
5	Chinese (zh) 投影 (线性代数)		134
6	Greek (el) Προβολή (γραμμική άλγεβρα)		123
7	Italian (it) Proiezione (geometria)		101
8	German (de) Projektion (lineare Algebra)		90
9	Korean (ko) 사영작용소		66
10	Spanish (es) Operador de proyección		64

More...

#	Language	Value
ar	Arabic إسقاط (هندسة)
ca	Catalan Operador de projecció
cs	Czech Projekce (lineární algebra)
de	German Projektion (lineare Algebra)
el	Greek Προβολή (γραμμική άλγεβρα)
en	English Projection (linear algebra)
es	Spanish Operador de proyección
fi	Finnish Projektio (lineaarialgebra)
fr	French Projecteur (mathématiques)
he	Hebrew הטלה (מתמטיקה)
it	Italian Proiezione (geometria)
ja	Japanese 射影作用素
ko	Korean 사영작용소
pl	Polish Rzut (algebra liniowa)
pt	Portuguese Projeção (álgebra linear)
ru	Russian Проектор (математика)
sk	Slovak Projekčná matica (matematika)
sl	Slovenian Projekcija (linearna algebra)
vi	Vietnamese Phép chiếu (đại số tuyến tính)
zh	Chinese 投影 (线性代数)

Best Rank

English: #45139 11.2014

Global: #59134 11.2014

Best Rank

English: #2717 02.2004

Global: #8660 02.2005

On 1 July 2026 in multilingual Wikipedia, Internet users most often read articles on the following topics: 2026 FIFA World Cup, Kylian Mbappé, Erling Haaland, Democratic Republic of the Congo, FIFA World Cup, Harry Kane, Romelu Lukaku, Senegal, Michael Olise, Sadio Mané.

In English Wikipedia the most popular articles on that day were: 2026 FIFA World Cup, Harry Kane, Julián Quiñones, List of FIFA World Cup top goalscorers, Kylian Mbappé, Democratic Republic of the Congo, Erling Haaland, DR Congo national football team, Melat Kiros, FIFA World Cup.

The WikiRank project is intended for automatic relative evaluation of the articles in the various language versions of Wikipedia. At the moment the service allows to compare over 50 million Wikipedia articles in 55 languages. Quality scores of articles are based on Wikipedia dumps from July, 2026. When calculating current popularity and AI of articles data from June 2026 was taken into account. For historical values of popularity and AI WikiRank used data from 2001 to 2026... More information