Signum

Sign function - mathematical function that extracts the sign of a real number or complex number. Article “Signum” in Vietnamese Wikipedia has 4 points for quality (as of July 1, 2026). The article contains 0 references and 2 sections.

This article has the best quality in Estonian Wikipedia. However, the most popular language version of this article is English.

Since the creation of article “Signum”, its content was written by 10 registered users of Vietnamese Wikipedia and edited by 689 registered Wikipedia users in all languages.

The article is cited 8 times in Vietnamese Wikipedia and cited 851 times in all languages.

The highest Authors Interest rank from 2001:

• Local (Vietnamese): #3132 in April 2015
• Global: #10768 in May 2010

The highest popularity rank from 2008:

• Local (Vietnamese): #16036 in November 2021
• Global: #14865 in October 2017

There are 38 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	Estonian (et) Signumfunktsioon		40.674
2	English (en) Sign function		37.3125
3	Finnish (fi) Signum-funktio		36.5985
4	Catalan (ca) Funció signe		34.8487
5	German (de) Vorzeichenfunktion		21.0691
6	Galician (gl) Función signo		16.7504
7	Persian (fa) تابع علامت		16.0611
8	Polish (pl) Funkcja signum		15.8535
9	Greek (el) Συνάρτηση προσήμου		15.4288
10	Thai (th) ฟังก์ชันเครื่องหมาย		14.1572

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

The most popular language versions of the article "Signum" in all the time

#	Language	Popularity award	Relative popularity
1	English (en) Sign function		2 716 121
2	German (de) Vorzeichenfunktion		525 501
3	Spanish (es) Función signo		486 748
4	Russian (ru) Sgn		462 205
5	Polish (pl) Funkcja signum		391 493
6	Japanese (ja) 符号関数		242 663
7	Chinese (zh) 符号函数		228 706
8	Italian (it) Funzione segno		151 034
9	Persian (fa) تابع علامت		148 336
10	French (fr) Fonction signe		115 131

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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 "Signum" in June 2026

#	Language	Popularity award	Relative popularity
1	English (en) Sign function		3 790
2	German (de) Vorzeichenfunktion		596
3	Polish (pl) Funkcja signum		404
4	Chinese (zh) 符号函数		370
5	Russian (ru) Sgn		353
6	Japanese (ja) 符号関数		320
7	Persian (fa) تابع علامت		304
8	French (fr) Fonction signe		210
9	Spanish (es) Función signo		192
10	Italian (it) Funzione segno		140

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

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

#	Language	AI award	Relative AI
1	English (en) Sign function		131
2	German (de) Vorzeichenfunktion		86
3	Russian (ru) Sgn		43
4	Italian (it) Funzione segno		36
5	Dutch (nl) Signum (wiskunde)		35
6	Hungarian (hu) Szignumfüggvény		34
7	Spanish (es) Función signo		30
8	French (fr) Fonction signe		25
9	Polish (pl) Funkcja signum		22
10	Czech (cs) Funkce signum		19

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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 "Signum" with the highest AI in June 2026

#	Language	AI award	Relative AI
1	Arabic (ar) دالة الإشارة		1
2	Bulgarian (bg) Сигнум		0
3	Catalan (ca) Funció signe		0
4	Czech (cs) Funkce signum		0
5	German (de) Vorzeichenfunktion		0
6	Greek (el) Συνάρτηση προσήμου		0
7	English (en) Sign function		0
8	Esperanto (eo) Signuma funkcio		0
9	Spanish (es) Función signo		0
10	Estonian (et) Signumfunktsioon		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 "Signum" with the highest Citation Index (CI)

#	Language	CI award	Relative CI
1	English (en) Sign function		113
2	Portuguese (pt) Função sinal		79
3	German (de) Vorzeichenfunktion		58
4	Persian (fa) تابع علامت		51
5	Russian (ru) Sgn		44
6	Hebrew (he) פונקציית הסימן		42
7	Japanese (ja) 符号関数		41
8	Indonesian (id) Fungsi tanda		38
9	Spanish (es) Función signo		37
10	Polish (pl) Funkcja signum		32

More...

#	Language	Value
ar	Arabic دالة الإشارة
bg	Bulgarian Сигнум
ca	Catalan Funció signe
cs	Czech Funkce signum
de	German Vorzeichenfunktion
el	Greek Συνάρτηση προσήμου
en	English Sign function
eo	Esperanto Signuma funkcio
es	Spanish Función signo
et	Estonian Signumfunktsioon
fa	Persian تابع علامت
fi	Finnish Signum-funktio
fr	French Fonction signe
gl	Galician Función signo
he	Hebrew פונקציית הסימן
hi	Hindi चिह्न फलन
hu	Hungarian Szignumfüggvény
hy	Armenian Sgn
id	Indonesian Fungsi tanda
it	Italian Funzione segno
ja	Japanese 符号関数
ko	Korean 부호함수
la	Latin Signum (functio)
nl	Dutch Signum (wiskunde)
no	Norwegian Signum (matematikk)
pl	Polish Funkcja signum
pt	Portuguese Função sinal
ro	Romanian Funcția semn
ru	Russian Sgn
sk	Slovak Signum (matematika)
sr	Serbian Сигнум функција
sv	Swedish Signumfunktionen
ta	Tamil குறிச் சார்பு
th	Thai ฟังก์ชันเครื่องหมาย
tr	Turkish İşaret fonksiyonu
uk	Ukrainian Signum-функція
vi	Vietnamese Signum
zh	Chinese 符号函数

Best Rank

Vietnamese: #16036 11.2021

Global: #14865 10.2017

Best Rank

Vietnamese: #3132 04.2015

Global: #10768 05.2010

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.

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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