Plan principal

fr

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Plan principal

Quality:

Principal plane - in optics. Article “Plan principal” in French Wikipedia has 2.9 points for quality (as of July 1, 2025). The article contains 0 references and 2 sections.

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

Since the creation of article “Plan principal”, its content was written by 5 registered users of French Wikipedia and edited by 37 registered Wikipedia users in all languages.

The article is cited 10 times in French Wikipedia and cited 180 times in all languages.

The highest Authors Interest rank from 2001:

  • Local (French): #82571 in April 2013
  • Global: #141376 in February 2012

The highest popularity rank from 2008:

  • Local (French): #218369 in October 2015
  • Global: #698642 in April 2008

There are 3 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
1German (de)
Hauptebene (Optik)
18.2637
2French (fr)
Plan principal
2.9348
3Dutch (nl)
Hoofdvlak
2.6132
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 "Plan principal" in all the time
#LanguagePopularity awardRelative popularity
1German (de)
Hauptebene (Optik)
196 721
2French (fr)
Plan principal
25 302
3Dutch (nl)
Hoofdvlak
14 943
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 "Plan principal" in June 2025
#LanguagePopularity awardRelative popularity
1German (de)
Hauptebene (Optik)
265
2French (fr)
Plan principal
75
3Dutch (nl)
Hoofdvlak
14
More...

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

The highest AI

Language versions of the article "Plan principal" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.
#LanguageAI awardRelative AI
1German (de)
Hauptebene (Optik)
25
2Dutch (nl)
Hoofdvlak
7
3French (fr)
Plan principal
5
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 "Plan principal" with the highest AI in June 2025
#LanguageAI awardRelative AI
1German (de)
Hauptebene (Optik)
0
2French (fr)
Plan principal
0
3Dutch (nl)
Hoofdvlak
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 "Plan principal" with the highest Citation Index (CI)
#LanguageCI awardRelative CI
1Dutch (nl)
Hoofdvlak
119
2German (de)
Hauptebene (Optik)
51
3French (fr)
Plan principal
10
More...

Scores

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

Quality measures

Interwikis

#LanguageValue
deGerman
Hauptebene (Optik)
frFrench
Plan principal
nlDutch
Hoofdvlak

Popularity rank trends

Best Rank French:
#218369
10.2015
Global:
#698642
04.2008

AI rank trends

Best Rank French:
#82571
04.2013
Global:
#141376
02.2012

Languages comparison

Important global interconnections (July 2024 – June 2025)

Wikipedia readers most often find their way to information on Principal plane from Wikipedia articles about Focal length, Point principal, Aperture, Bessel method and Ray transfer matrix analysis. Whereas reading the article about Principal plane people most often go to Wikipedia articles on Lens, Paraxial approximation, Ray transfer matrix analysis, Geometrical optics and Optical system.

Cumulative results of quality and popularity of the Wikipedia article

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

News from 16 March 2026

On 16 March 2026 in multilingual Wikipedia, Internet users most often read articles on the following topics: 98th Academy Awards, Michael B. Jordan, Sinners, Jessie Buckley, Paul Thomas Anderson, Sean Penn, One Battle After Another, Amy Madigan, Hamnet, Timothée Chalamet.

In French Wikipedia the most popular articles on that day were: Bruno Salomone, 98e cérémonie des Oscars, Sarah Knafo, Stéphane Audran, Une bataille après l'autre, Michael B. Jordan, Élections municipales de 2026 à Paris, Emmanuel Grégoire, Les Noces rouges, Sinners (film).

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