Weierstrass function

Weierstrass function - function that is continuous everywhere but differentiable nowhere. Article "Weierstrass function" in English Wikipedia has 35 points for quality (as of July 1, 2025). The article contains 17 references and 8 sections.

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

Since the creation of article "Weierstrass function", its content was written by 143 registered users of English Wikipedia and edited by 539 registered Wikipedia users in all languages.

The article is cited 145 times in English Wikipedia and cited 640 times in all languages.

The highest Authors Interest rank from 2001:

• Local (English): #20506 in January 2004
• Global: #15362 in December 2009

The highest popularity rank from 2008:

• Local (English): #38931 in October 2018
• Global: #33390 in August 2019

There are 27 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) Weierstrass function		35.0226
2	Greek (el) Συνάρτηση του Βάιερστρας		31.8085
3	German (de) Weierstraß-Funktion		30.1743
4	Ukrainian (uk) Функція Веєрштрасса		26.5739
5	Polish (pl) Funkcja Weierstrassa		26.2808
6	Korean (ko) 바이어슈트라스 함수		23.8985
7	Portuguese (pt) Função de Weierstrass		23.3926
8	Czech (cs) Weierstrassova funkce		23.2056
9	Finnish (fi) Kaikkialla jatkuva ei-missään derivoituva funktio		22.803
10	Chinese (zh) 魏尔施特拉斯函数		22.576

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

The most popular language versions of the article "Weierstrass function" in all the time

#	Language	Popularity award	Relative popularity
1	English (en) Weierstrass function		1 850 414
2	Russian (ru) Функция Вейерштрасса		286 383
3	Chinese (zh) 魏尔施特拉斯函数		259 268
4	German (de) Weierstraß-Funktion		188 861
5	Japanese (ja) ワイエルシュトラス関数		188 173
6	French (fr) Fonction de Weierstrass		137 381
7	Spanish (es) Función de Weierstrass		135 494
8	Korean (ko) 바이어슈트라스 함수		128 304
9	Polish (pl) Funkcja Weierstrassa		86 200
10	Hebrew (he) פונקציית ויירשטראס		77 637

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

The most popular language versions of the article "Weierstrass function" in June 2025

#	Language	Popularity award	Relative popularity
1	English (en) Weierstrass function		12 682
2	French (fr) Fonction de Weierstrass		2 169
3	Russian (ru) Функция Вейерштрасса		1 361
4	Japanese (ja) ワイエルシュトラス関数		1 146
5	German (de) Weierstraß-Funktion		1 073
6	Chinese (zh) 魏尔施特拉斯函数		885
7	Korean (ko) 바이어슈트라스 함수		791
8	Spanish (es) Función de Weierstrass		616
9	Italian (it) Funzione di Weierstrass		388
10	Polish (pl) Funkcja Weierstrassa		325

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

Language versions of the article "Weierstrass function" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.

#	Language	AI award	Relative AI
1	English (en) Weierstrass function		143
2	German (de) Weierstraß-Funktion		47
3	French (fr) Fonction de Weierstrass		44
4	Hebrew (he) פונקציית ויירשטראס		32
5	Japanese (ja) ワイエルシュトラス関数		28
6	Spanish (es) Función de Weierstrass		25
7	Russian (ru) Функция Вейерштрасса		23
8	Vietnamese (vi) Hàm Weierstrass		20
9	Galician (gl) Función de Weierstrass		19
10	Polish (pl) Funkcja Weierstrassa		18

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

Language versions of the article "Weierstrass function" with the highest AI in June 2025

#	Language	AI award	Relative AI
1	Arabic (ar) دالة فايرشتراس		1
2	Bulgarian (bg) Функция на Вайерщрас		0
3	Catalan (ca) Funció de Weierstrass		0
4	Czech (cs) Weierstrassova funkce		0
5	German (de) Weierstraß-Funktion		0
6	Greek (el) Συνάρτηση του Βάιερστρας		0
7	English (en) Weierstrass function		0
8	Spanish (es) Función de Weierstrass		0
9	Basque (eu) Weierstrass funtzioa		0
10	Persian (fa) تابع وایرشتراس		0

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

Language versions of the article "Weierstrass function" with the highest Citation Index (CI)

#	Language	CI award	Relative CI
1	Chinese (zh) 魏尔施特拉斯函数		150
2	English (en) Weierstrass function		145
3	Portuguese (pt) Função de Weierstrass		65
4	Polish (pl) Funkcja Weierstrassa		47
5	Indonesian (id) Fungsi Weierstrass		35
6	French (fr) Fonction de Weierstrass		19
7	Hebrew (he) פונקציית ויירשטראס		18
8	Korean (ko) 바이어슈트라스 함수		18
9	German (de) Weierstraß-Funktion		17
10	Japanese (ja) ワイエルシュトラス関数		17

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#	Language	Value
ar	Arabic دالة فايرشتراس
bg	Bulgarian Функция на Вайерщрас
ca	Catalan Funció de Weierstrass
cs	Czech Weierstrassova funkce
de	German Weierstraß-Funktion
el	Greek Συνάρτηση του Βάιερστρας
en	English Weierstrass function
es	Spanish Función de Weierstrass
eu	Basque Weierstrass funtzioa
fa	Persian تابع وایرشتراس
fi	Finnish Kaikkialla jatkuva ei-missään derivoituva funktio
fr	French Fonction de Weierstrass
gl	Galician Función de Weierstrass
he	Hebrew פונקציית ויירשטראס
id	Indonesian Fungsi Weierstrass
it	Italian Funzione di Weierstrass
ja	Japanese ワイエルシュトラス関数
ko	Korean 바이어슈트라스 함수
lt	Lithuanian Vejerštraso funkcija
pl	Polish Funkcja Weierstrassa
pt	Portuguese Função de Weierstrass
ru	Russian Функция Вейерштрасса
sv	Swedish Weierstrassfunktionen
tr	Turkish Weierstrass fonksiyonu
uk	Ukrainian Функція Веєрштрасса
vi	Vietnamese Hàm Weierstrass
zh	Chinese 魏尔施特拉斯函数

Best Rank

English: #38931 10.2018

Global: #33390 08.2019

Best Rank

English: #20506 01.2004

Global: #15362 12.2009

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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