Fourier series

Quality:

Fourier series - decomposition of periodic functions into sums of simpler sinusoidal forms. Article “Fourier series” in English Wikipedia has 75.3 points for quality (as of July 1, 2025). The article contains 55 references and 35 sections.

In this language version of Wikipedia the article has the best quality. Also, this article is the most popular in that (English) language version.

In June 2025 the article “Fourier series” was edited by 1 authors in English Wikipedia and written by 7 authors in all languages.

Since the creation of article “Fourier series”, its content was written by 432 registered users of English Wikipedia and edited by 1990 registered Wikipedia users in all languages.

The article is cited 648 times in English Wikipedia and cited 4369 times in all languages.

The highest Authors Interest rank from 2001:

• Local (English): #1457 in March 2003
• Global: #2243 in October 2004

The highest popularity rank from 2008:

• Local (English): #187 in February 2015
• Global: #592 in February 2015

There are 47 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.

#	Language	Quality grade	Quality score
1	English (en) Fourier series		75.2537
2	Portuguese (pt) Série de Fourier		72.13
3	Chinese (zh) 傅里叶级数		66.4416
4	Greek (el) Σειρές Φουριέ		61.302
5	Indonesian (id) Deret Fourier		58.6671
6	Polish (pl) Szereg Fouriera		55.2484
7	Turkish (tr) Fourier serisi		52.1983
8	German (de) Fourierreihe		52.0527
9	Galician (gl) Serie de Fourier		49.7473
10	Catalan (ca) Sèrie de Fourier		45.6144

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

#	Language	Popularity award	Relative popularity
1	English (en) Fourier series		10 194 195
2	Spanish (es) Serie de Fourier		2 469 845
3	German (de) Fourierreihe		1 956 828
4	French (fr) Série de Fourier		1 905 245
5	Russian (ru) Ряд Фурье		1 635 795
6	Japanese (ja) フーリエ級数		1 206 842
7	Chinese (zh) 傅里叶级数		1 055 235
8	Italian (it) Serie di Fourier		1 044 550
9	Polish (pl) Szereg Fouriera		647 471
10	Portuguese (pt) Série de Fourier		581 535

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

#	Language	Popularity award	Relative popularity
1	English (en) Fourier series		26 502
2	French (fr) Série de Fourier		5 035
3	Russian (ru) Ряд Фурье		4 976
4	German (de) Fourierreihe		4 070
5	Chinese (zh) 傅里叶级数		3 920
6	Spanish (es) Serie de Fourier		3 910
7	Italian (it) Serie di Fourier		3 084
8	Japanese (ja) フーリエ級数		2 770
9	Korean (ko) 푸리에 급수		2 457
10	Polish (pl) Szereg Fouriera		2 108

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

#	Language	AI award	Relative AI
1	English (en) Fourier series		432
2	German (de) Fourierreihe		179
3	French (fr) Série de Fourier		156
4	Russian (ru) Ряд Фурье		112
5	Italian (it) Serie di Fourier		100
6	Spanish (es) Serie de Fourier		90
7	Dutch (nl) Fourierreeks		76
8	Portuguese (pt) Série de Fourier		76
9	Hebrew (he) טור פורייה		66
10	Chinese (zh) 傅里叶级数		60

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

#	Language	AI award	Relative AI
1	English (en) Fourier series		1
2	Persian (fa) سری فوریه		1
3	French (fr) Série de Fourier		1
4	Hungarian (hu) Fourier-sor		1
5	Indonesian (id) Deret Fourier		1
6	Russian (ru) Ряд Фурье		1
7	Swedish (sv) Fourierserie		1
8	Arabic (ar) متسلسلة فورييه		0
9	Azerbaijani (az) Furye sıraları		0
10	Belarusian (be) Рад Фур’е		0

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

On 28 January 2026 in multilingual Wikipedia, Internet users most often read articles on the following topics: 2025–26 UEFA Champions League, Nipah virus, Doomsday Clock, UEFA Champions League, Elena Rybakina, Donald Trump, 2026 European Men's Handball Championship, killing of Alex Pretti, Kristi Noem, deaths in 2026.

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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 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