Flatness (systems theory)

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Flatness (systems theory)

Quality:

Flatness - system property extending the notion of controllability from linear systems to nonlinear dynamical systems. Article "Flatness (systems theory)" in English Wikipedia has 8.5 points for quality (as of July 1, 2025). The article contains 0 references and 5 sections.

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

Since the creation of article "Flatness (systems theory)", its content was written by 13 registered users of English Wikipedia and edited by 40 registered Wikipedia users in all languages.

The article is cited 4 times in English Wikipedia and cited 21 times in all languages.

The highest Authors Interest rank from 2001:

  • Local (English): #246908 in March 2023
  • Global: #254813 in May 2005

The highest popularity rank from 2008:

  • Local (English): #898029 in March 2015
  • Global: #1072575 in October 2008

There are 5 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
1Estonian (et)
Lamedus (juhtimissüsteemide teooria)
33.7879
2Chinese (zh)
平坦性
9.7375
3English (en)
Flatness (systems theory)
8.5482
4German (de)
Flachheit (Systemtheorie)
5.7769
5Arabic (ar)
انبساط (نظرية الأنظمة)
3.7478
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 "Flatness (systems theory)" in all the time
#LanguagePopularity awardRelative popularity
1English (en)
Flatness (systems theory)
81 084
2German (de)
Flachheit (Systemtheorie)
39 758
3Arabic (ar)
انبساط (نظرية الأنظمة)
10 375
4Chinese (zh)
平坦性
4 947
5Estonian (et)
Lamedus (juhtimissüsteemide teooria)
247
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 "Flatness (systems theory)" in June 2025
#LanguagePopularity awardRelative popularity
1English (en)
Flatness (systems theory)
222
2German (de)
Flachheit (Systemtheorie)
56
3Chinese (zh)
平坦性
47
4Arabic (ar)
انبساط (نظرية الأنظمة)
20
5Estonian (et)
Lamedus (juhtimissüsteemide teooria)
1
More...

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

The highest AI

Language versions of the article "Flatness (systems theory)" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.
#LanguageAI awardRelative AI
1English (en)
Flatness (systems theory)
13
2German (de)
Flachheit (Systemtheorie)
11
3Arabic (ar)
انبساط (نظرية الأنظمة)
10
4Estonian (et)
Lamedus (juhtimissüsteemide teooria)
4
5Chinese (zh)
平坦性
2
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 "Flatness (systems theory)" with the highest AI in June 2025
#LanguageAI awardRelative AI
1Arabic (ar)
انبساط (نظرية الأنظمة)
0
2German (de)
Flachheit (Systemtheorie)
0
3English (en)
Flatness (systems theory)
0
4Estonian (et)
Lamedus (juhtimissüsteemide teooria)
0
5Chinese (zh)
平坦性
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 "Flatness (systems theory)" with the highest Citation Index (CI)
#LanguageCI awardRelative CI
1Arabic (ar)
انبساط (نظرية الأنظمة)
12
2English (en)
Flatness (systems theory)
4
3Chinese (zh)
平坦性
3
4German (de)
Flachheit (Systemtheorie)
2
5Estonian (et)
Lamedus (juhtimissüsteemide teooria)
0
More...

Scores

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

Quality measures

Interwikis

#LanguageValue
arArabic
انبساط (نظرية الأنظمة)
deGerman
Flachheit (Systemtheorie)
enEnglish
Flatness (systems theory)
etEstonian
Lamedus (juhtimissüsteemide teooria)
zhChinese
平坦性

Popularity rank trends

Best Rank English:
#898029
03.2015
Global:
#1072575
10.2008

AI rank trends

Best Rank English:
#246908
03.2023
Global:
#254813
05.2005

Languages comparison

Important global interconnections (July 2024 – June 2025)

Cumulative results of quality and popularity of the Wikipedia article

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

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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