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MATHEMATICIAN

Qin Jiushao

1201 - 1261

Photo of Qin Jiushao

Icon of person Qin Jiushao

Qin Jiushao (Chinese: 秦九韶; pinyin: Qín Jiǔsháo; Wade–Giles: Ch'in Chiu-shao, ca. 1202–1261), courtesy name Daogu (道古), was a Chinese mathematician, meteorologist, inventor, politician, and writer. Read more on Wikipedia

Since 2007, the English Wikipedia page of Qin Jiushao has received more than 78,021 page views. His biography is available in 20 different languages on Wikipedia. Qin Jiushao is the 398th most popular mathematician (down from 383rd in 2019), the 642nd most popular biography from China (down from 572nd in 2019) and the 13th most popular Chinese Mathematician.

Memorability Metrics

  • 78k

    Page Views (PV)

  • 52.84

    Historical Popularity Index (HPI)

  • 20

    Languages Editions (L)

  • 5.17

    Effective Languages (L*)

  • 2.14

    Coefficient of Variation (CV)

Page views of Qin Jiushaos by language


Among MATHEMATICIANS

Among mathematicians, Qin Jiushao ranks 398 out of 823Before him are Abū Ja'far al-Khāzin, Jacques Tits, Alfred J. Lotka, Ignazio Danti, Henri Brocard, and Ibn Sahl. After him are Caspar Wessel, Lennart Carleson, Helmut Hasse, Grigory Margulis, Ernst Schröder, and Hendrik C. van de Hulst.

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Contemporaries

Among people born in 1201, Qin Jiushao ranks 14Before him are Al-Baydawi, Butvydas, Philip I, Count of Boulogne, Robert I, Latin Emperor, Elena Asenina of Bulgaria, and Bernard Desclot. After him are Alberic of Trois-Fontaines and Agnes of the Palatinate. Among people deceased in 1261, Qin Jiushao ranks 4Before him are Pope Alexander IV, Al-Mustansir, and Henry III, Duke of Brabant.

Others Born in 1201

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Others Deceased in 1261

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In China

Among people born in China, Qin Jiushao ranks 642 out of 1,392Before him are Zhou Daguan (1266), Tan Sitong (1865), Jin of Xia (null), Fou Ts'ong (1934), Leizu (null), and Shannon Lucid (1943). After him are Xu Beihong (1895), Ma Huan (1380), Cai Yuanpei (1868), Ignatius Kung Pin-Mei (1901), Lau Kar-leung (1934), and Salchak Toka (1901).

Among MATHEMATICIANS In China

Among mathematicians born in China, Qin Jiushao ranks 13Before him are Shiing-Shen Chern (1911), Guo Shoujing (1231), Yi Xing (683), Shing-Tung Yau (1949), Yang Hui (1238), and Zhu Shijie (1249). After him are Chen Jingrun (1933), Dai Zhen (1724), Yitang Zhang (1955), and Wu Wenjun (1919).