Ludolph van Ceulen

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Ludolph van Ceulen

Quality:

Ludolph van Ceulen - German-Dutch mathematician (*1540 – †1610). Article “Ludolph van Ceulen” in Italian Wikipedia has 7.7 points for quality (as of July 1, 2025). The article contains 0 references and 5 sections. The article also contains templates indicating quality issues, therefore its score was reduced by 0.41 points.

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

Since the creation of article “Ludolph van Ceulen”, its content was written by 36 registered users of Italian Wikipedia and edited by 621 registered Wikipedia users in all languages.

The article is cited 18 times in Italian Wikipedia and cited 497 times in all languages.

The highest Authors Interest rank from 2001:

  • Local (Italian): #21835 in May 2007
  • Global: #4778 in April 2018

The highest popularity rank from 2008:

  • Local (Italian): #99181 in March 2010
  • Global: #157163 in January 2010

There are 34 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, 2025 (including revision history and pageviews for previous years).

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

Languages with the highest quality

#LanguageQuality gradeQuality score
1Portuguese (pt)
Ludolph van Ceulen
35.5753
2Hungarian (hu)
Ludolph van Ceulen
30.858
3Armenian (hy)
Լուդոլֆ վան Քյոլեն
30.2074
4Catalan (ca)
Ludolph van Ceulen
30.0647
5Ukrainian (uk)
Людольф ван Келен
29.9331
6Azerbaijani (az)
Ludolf van Seylen
28.9766
7Norwegian (no)
Ludolph van Ceulen
28.747
8Swedish (sv)
Ludolph van Ceulen
28.5229
9English (en)
Ludolph van Ceulen
26.0612
10Romanian (ro)
Ludolph van Ceulen
25.8171
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 "Ludolph van Ceulen" in all the time
#LanguagePopularity awardRelative popularity
1English (en)
Ludolph van Ceulen
184 675
2German (de)
Ludolph van Ceulen
102 648
3Czech (cs)
Ludolph van Ceulen
59 244
4Polish (pl)
Ludolph van Ceulen
50 949
5Japanese (ja)
ルドルフ・ファン・コーレン
46 026
6Dutch (nl)
Ludolph van Ceulen
42 428
7Spanish (es)
Ludolph van Ceulen
40 938
8Italian (it)
Ludolph van Ceulen
31 441
9Russian (ru)
Цейлен, Людольф
29 616
10French (fr)
Ludolph van Ceulen
25 421
More...

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

Most popular in June 2025

The most popular language versions of the article "Ludolph van Ceulen" in June 2025
#LanguagePopularity awardRelative popularity
1English (en)
Ludolph van Ceulen
553
2German (de)
Ludolph van Ceulen
328
3Japanese (ja)
ルドルフ・ファン・コーレン
284
4Czech (cs)
Ludolph van Ceulen
140
5French (fr)
Ludolph van Ceulen
113
6Korean (ko)
뤼돌프 판 쾰런
111
7Italian (it)
Ludolph van Ceulen
83
8Polish (pl)
Ludolph van Ceulen
79
9Russian (ru)
Цейлен, Людольф
79
10Dutch (nl)
Ludolph van Ceulen
76
More...

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

The highest AI

Language versions of the article "Ludolph van Ceulen" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.
#LanguageAI awardRelative AI
1German (de)
Ludolph van Ceulen
79
2English (en)
Ludolph van Ceulen
79
3French (fr)
Ludolph van Ceulen
65
4Dutch (nl)
Ludolph van Ceulen
39
5Italian (it)
Ludolph van Ceulen
36
6Russian (ru)
Цейлен, Людольф
32
7Hungarian (hu)
Ludolph van Ceulen
28
8Portuguese (pt)
Ludolph van Ceulen
23
9Spanish (es)
Ludolph van Ceulen
20
10Czech (cs)
Ludolph van Ceulen
19
More...

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

The highest AI in June 2025

Language versions of the article "Ludolph van Ceulen" with the highest AI in June 2025
#LanguageAI awardRelative AI
1Arabic (ar)
لودولف فان ساولن
0
2Azerbaijani (az)
Ludolf van Seylen
0
3Bulgarian (bg)
Лудолф фон Цойлен
0
4Catalan (ca)
Ludolph van Ceulen
0
5Czech (cs)
Ludolph van Ceulen
0
6German (de)
Ludolph van Ceulen
0
7English (en)
Ludolph van Ceulen
0
8Esperanto (eo)
Ludolph van Ceulen
0
9Spanish (es)
Ludolph van Ceulen
0
10Persian (fa)
لودولف فان کویلن
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 "Ludolph van Ceulen" with the highest Citation Index (CI)
#LanguageCI awardRelative CI
1English (en)
Ludolph van Ceulen
63
2German (de)
Ludolph van Ceulen
33
3French (fr)
Ludolph van Ceulen
31
4Chinese (zh)
鲁道夫·范科伊伦
31
5Arabic (ar)
لودولف فان ساولن
30
6Dutch (nl)
Ludolph van Ceulen
30
7Portuguese (pt)
Ludolph van Ceulen
29
8Japanese (ja)
ルドルフ・ファン・コーレン
22
9Russian (ru)
Цейлен, Людольф
19
10Italian (it)
Ludolph van Ceulen
18
More...

Scores

Estimated value for Wikipedia:
Italian:
Global:
Popularity in June 2025:
Italian:
Global:
Popularity in all years:
Italian:
Global:
Authors in June 2025:
Italian:
Global:
Registered authors in all years:
Italian:
Global:
Citations:
Italian:
Global:

Quality measures

Interwikis

#LanguageValue
arArabic
لودولف فان ساولن
azAzerbaijani
Ludolf van Seylen
bgBulgarian
Лудолф фон Цойлен
caCatalan
Ludolph van Ceulen
csCzech
Ludolph van Ceulen
deGerman
Ludolph van Ceulen
enEnglish
Ludolph van Ceulen
eoEsperanto
Ludolph van Ceulen
esSpanish
Ludolph van Ceulen
faPersian
لودولف فان کویلن
fiFinnish
Ludolph van Ceulen
frFrench
Ludolph van Ceulen
glGalician
Ludolph van Ceulen
heHebrew
לודולף ואן צאולן
huHungarian
Ludolph van Ceulen
hyArmenian
Լուդոլֆ վան Քյոլեն
idIndonesian
Ludolph van Ceulen
itItalian
Ludolph van Ceulen
jaJapanese
ルドルフ・ファン・コーレン
koKorean
뤼돌프 판 쾰런
laLatin
Ludolphus van Ceulen
nlDutch
Ludolph van Ceulen
nnNorwegian (Nynorsk)
Ludolph van Ceulen
noNorwegian
Ludolph van Ceulen
plPolish
Ludolph van Ceulen
ptPortuguese
Ludolph van Ceulen
roRomanian
Ludolph van Ceulen
ruRussian
Цейлен, Людольф
skSlovak
Ludolph van Ceulen
srSerbian
Лудолф ван Цојлен
svSwedish
Ludolph van Ceulen
ukUkrainian
Людольф ван Келен
viVietnamese
Ludolph van Ceulen
zhChinese
鲁道夫·范科伊伦

Popularity rank trends

Best Rank Italian:
#99181
03.2010
Global:
#157163
01.2010

AI rank trends

Best Rank Italian:
#21835
05.2007
Global:
#4778
04.2018

Global AI rank history

Languages comparison

Important global interconnections (July 2024 – June 2025)

Wikipedia readers most often find their way to information on Ludolph van Ceulen from Wikipedia articles about Pi, Approximations of π, Chronology of computation of π, January 28 and Method of exhaustion. Whereas reading the article about Ludolph van Ceulen people most often go to Wikipedia articles on Pi, Willebrord Snellius, Hildesheim, Leiden and Christiaan Huygens.

Cumulative results of quality and popularity of the Wikipedia article

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

News from 21 February 2026

On 21 February 2026 in multilingual Wikipedia, Internet users most often read articles on the following topics: Jeffrey Epstein, Alysa Liu, Eric Dane, 2026 Winter Olympics, Rebecca Gayheart, Johannes Høsflot Klæbo, Wuthering Heights, amyotrophic lateral sclerosis, Andrew Mountbatten-Windsor, John F. Kennedy Jr..

In Italian Wikipedia the most popular articles on that day were: Matilde Lorenzi, Federico Tomasoni, Carolina Kostner, Festival di Sanremo 2026, Eric Dane, Quel pomeriggio di un giorno da cani, Andrea Pignataro, Simone Deromedis, Jeffrey Epstein, Dorothea Wierer.

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 July, 2025. When calculating current popularity and AI of articles data from June 2025 was taken into account. For historical values of popularity and AI WikiRank used data from 2001 to 2025... More information