Double factorial

Quality:

Double factorial - product of all the integers from 1 up to the integral input of the function that have the same parity as this input. Article "Double factorial" in Simple English Wikipedia has 24.9 points for quality (as of November 1, 2023). The article contains 3 references and 2 sections.

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

Since the creation of article "Double factorial", its content was written by 5 registered users of Simple English Wikipedia and edited by 145 registered Wikipedia users in all languages.

The article is cited 1 times in Simple English Wikipedia and cited 158 times in all languages.

The highest Authors Interest rank from 2001:

  • Local (Simple English): #886 in April 2018
  • Global: #53945 in September 2017

The highest popularity rank from 2008:

  • Local (Simple English): #36537 in September 2022
  • Global: #130445 in April 2020

There are 13 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 November 1, 2023 (including revision history and pageviews for previous years).

下表顯示了最高品質的文章的語言版本。

Languages with the highest quality

#LanguageQuality gradeQuality score
1English (en)
Double factorial
53.8014
2Catalan (ca)
Doble factorial
51.8161
3Portuguese (pt)
Duplo fatorial
35.5027
4Spanish (es)
Doble factorial
33.0229
5Estonian (et)
Kahekordne faktoriaal
24.9154
6Simple English (simple)
Double factorial
24.8753
7Japanese (ja)
二重階乗
24.2058
8Hebrew (he)
עצרת כפולה
16.722
9Arabic (ar)
عاملي ثنائي
15.3515
10Dutch (nl)
Dubbelfaculteit
14.5595
More...

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

Most popular in all the time

The most popular language versions of the article "Double factorial" in all the time
#LanguagePopularity awardRelative popularity
1English (en)
Double factorial
897 250
2Japanese (ja)
二重階乗
78 740
3Spanish (es)
Doble factorial
67 924
4Portuguese (pt)
Duplo fatorial
44 452
5Dutch (nl)
Dubbelfaculteit
15 851
6Hebrew (he)
עצרת כפולה
14 482
7Swedish (sv)
Semifakultet
11 465
8Slovak (sk)
Dvojitý faktoriál
6 807
9Persian (fa)
فاکتوریل دوبل
6 020
10Estonian (et)
Kahekordne faktoriaal
2 018
More...

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

Most popular in October 2023

The most popular language versions of the article "Double factorial" in October 2023
#LanguagePopularity awardRelative popularity
1English (en)
Double factorial
9 590
2Japanese (ja)
二重階乗
1 299
3Spanish (es)
Doble factorial
991
4Portuguese (pt)
Duplo fatorial
641
5Persian (fa)
فاکتوریل دوبل
68
6Dutch (nl)
Dubbelfaculteit
61
7Slovak (sk)
Dvojitý faktoriál
60
8Hebrew (he)
עצרת כפולה
43
9Swedish (sv)
Semifakultet
40
10Simple English (simple)
Double factorial
34
More...

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

The highest AI

Language versions of the article "Double factorial" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.
#LanguageAI awardRelative AI
1English (en)
Double factorial
64
2Spanish (es)
Doble factorial
17
3Hebrew (he)
עצרת כפולה
16
4Dutch (nl)
Dubbelfaculteit
12
5Swedish (sv)
Semifakultet
8
6Persian (fa)
فاکتوریل دوبل
5
7Simple English (simple)
Double factorial
5
8Slovak (sk)
Dvojitý faktoriál
5
9Japanese (ja)
二重階乗
4
10Estonian (et)
Kahekordne faktoriaal
3
More...

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

The highest AI in October 2023

Language versions of the article "Double factorial" with the highest AI in October 2023
#LanguageAI awardRelative AI
1Dutch (nl)
Dubbelfaculteit
1
2Arabic (ar)
عاملي ثنائي
0
3Catalan (ca)
Doble factorial
0
4English (en)
Double factorial
0
5Spanish (es)
Doble factorial
0
6Estonian (et)
Kahekordne faktoriaal
0
7Persian (fa)
فاکتوریل دوبل
0
8Hebrew (he)
עצרת כפולה
0
9Japanese (ja)
二重階乗
0
10Portuguese (pt)
Duplo fatorial
0
More...

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

The highest CI

Language versions of the article "Double factorial" with the highest Citation Index (CI)
#LanguageCI awardRelative CI
1English (en)
Double factorial
67
2Japanese (ja)
二重階乗
22
3Catalan (ca)
Doble factorial
16
4Spanish (es)
Doble factorial
12
5Arabic (ar)
عاملي ثنائي
8
6Swedish (sv)
Semifakultet
7
7Estonian (et)
Kahekordne faktoriaal
5
8Dutch (nl)
Dubbelfaculteit
5
9Portuguese (pt)
Duplo fatorial
5
10Hebrew (he)
עצרת כפולה
4
More...

Scores

Estimated value for Wikipedia:
Simple English:
Global:
Popularity in October 2023:
Simple English:
Global:
Popularity in all years:
Simple English:
Global:
Authors in October 2023:
Simple English:
Global:
Registered authors in all years:
Simple English:
Global:
Citations:
Simple English:
Global:

Quality measures

Interwikis

#LanguageValue
arArabic
عاملي ثنائي
caCatalan
Doble factorial
enEnglish
Double factorial
esSpanish
Doble factorial
etEstonian
Kahekordne faktoriaal
faPersian
فاکتوریل دوبل
heHebrew
עצרת כפולה
jaJapanese
二重階乗
nlDutch
Dubbelfaculteit
ptPortuguese
Duplo fatorial
simpleSimple English
Double factorial
skSlovak
Dvojitý faktoriál
svSwedish
Semifakultet

Popularity rank trends

Best Rank Simple English:
#36537
09.2022
Global:
#130445
04.2020

AI rank trends

Best Rank Simple English:
#886
04.2018
Global:
#53945
09.2017

Local AI rank history

Languages comparison

Important global interconnections

Wikipedia readers most often find their way to information on Double factorial from Wikipedia articles about Normal distribution, Factorial, Gaussian integral, Gamma function and Particular values of the Gamma function. Whereas reading the article about Double factorial people most often go to Wikipedia articles on Factorial, Empty product, Gamma function, Parity and Wallis product.

Cumulative results of quality and popularity of the Wikipedia article

List of Wikipedia articles in different languages (starting with the most popular):

News from 4 August 2024

On 4 August 2024 in multilingual Wikipedia, Internet users most often read articles on the following topics: Novak Djokovic, 2024 Summer Olympics, Imane Khelif, Saint Lucia, Carlos Alcaraz, Simone Biles, Usain Bolt, 100 metres, list of Olympic medalists in tennis, Deadpool & Wolverine.

In Simple English Wikipedia the most popular articles on that day were: Kamala Harris, Malaysia at the Olympics, Simone Biles, Shot put, XXXTentacion, Saint Lucia, Dictator, Wolverine (character), Black, Republican Party (United States).

About WikiRank

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 44 million Wikipedia articles in 55 languages. Quality scores of articles are based on Wikipedia dumps from November, 2023. When calculating current popularity and AI of articles data from October 2023 was taken into account. For historical values of popularity and AI WikiRank used data from 2001 to 2023... More information