Surjective function

Quality:

Surjective function - function such that every element of the codomain has a preimage. Article “Surjective function” in Simple English Wikipedia has 44.3 points for quality (as of July 1, 2026). The article contains 6 references and 7 sections.

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

Since the creation of article “Surjective function”, its content was written by 11 registered users of Simple English Wikipedia and edited by 1052 registered Wikipedia users in all languages.

The article is cited 23 times in Simple English Wikipedia and cited 3514 times in all languages.

The highest Authors Interest rank from 2001:

• Local (Simple English): #1362 in May 2026
• Global: #1348 in April 2002

The highest popularity rank from 2008:

• Local (Simple English): #4260 in July 2023
• Global: #12632 in October 2010

There are 43 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) Surjective function		48.9125
2	Simple English (simple) Surjective function		44.3483
3	Tamil (ta) முழுக்கோப்பு		38.7894
4	Chinese (zh) 满射		36.4928
5	Portuguese (pt) Função sobrejectiva		33.9619
6	Polish (pl) Surjekcja		31.7736
7	Arabic (ar) دالة غامرة		29.3132
8	Galician (gl) Función sobrexectiva		28.1362
9	French (fr) Surjection		27.1766
10	Catalan (ca) Funció exhaustiva		25.4033

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

#	Language	Popularity award	Relative popularity
1	English (en) Surjective function		3 345 364
2	Spanish (es) Función sobreyectiva		2 755 103
3	German (de) Surjektive Funktion		1 535 359
4	Italian (it) Funzione suriettiva		897 985
5	Russian (ru) Сюръекция		654 648
6	French (fr) Surjection		635 011
7	Polish (pl) Surjekcja		505 371
8	Portuguese (pt) Função sobrejectiva		291 037
9	Hebrew (he) פונקציה על		270 871
10	Japanese (ja) 全射		260 209

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

#	Language	Popularity award	Relative popularity
1	English (en) Surjective function		4 627
2	German (de) Surjektive Funktion		1 038
3	Russian (ru) Сюръекция		980
4	French (fr) Surjection		795
5	Spanish (es) Función sobreyectiva		550
6	Italian (it) Funzione suriettiva		532
7	Chinese (zh) 满射		423
8	Japanese (ja) 全射		414
9	Polish (pl) Surjekcja		396
10	Hebrew (he) פונקציה על		325

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

#	Language	AI award	Relative AI
1	English (en) Surjective function		182
2	German (de) Surjektive Funktion		89
3	French (fr) Surjection		74
4	Spanish (es) Función sobreyectiva		63
5	Polish (pl) Surjekcja		57
6	Russian (ru) Сюръекция		49
7	Italian (it) Funzione suriettiva		42
8	Hebrew (he) פונקציה על		39
9	Dutch (nl) Surjectie		39
10	Japanese (ja) 全射		31

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

#	Language	AI award	Relative AI
1	Italian (it) Funzione suriettiva		2
2	Arabic (ar) دالة غامرة		1
3	Catalan (ca) Funció exhaustiva		1
4	English (en) Surjective function		1
5	Basque (eu) Funtzio supraiektibo		1
6	Belarusian (be) Сюр’екцыя		0
7	Bulgarian (bg) Сюрекция		0
8	Czech (cs) Surjekce		0
9	Danish (da) Surjektiv		0
10	German (de) Surjektive Funktion		0

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

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 Simple English Wikipedia the most popular articles on that day were: List of European countries, Black, List of sex positions, 2026 Iran war, Suresh Raina, Politics of Germany, Academy Award for Best Director, 2020, DYSS-TV, 2022.

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