Abu al-Wafa' Buzjani

940 - 998

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Abū al-Wafāʾ, Muḥammad ibn Muḥammad ibn Yaḥyā ibn Ismāʿīl ibn al-ʿAbbās al-Būzjānī or Abū al-Wafā Būzhjānī (Persian: ابوالوفا بوزجانی or بوژگانی‎) (10 June 940 – 15 July 998) was a Persian mathematician and astronomer who worked in Baghdad. He made important innovations in spherical trigonometry, and his work on arithmetics for businessmen contains the first instance of using negative numbers in a medieval Islamic text. He is also credited with compiling the tables of sines and tangents at 15 ' intervals. Read more on Wikipedia

Since 2007, the English Wikipedia page of Abu al-Wafa' Buzjani has received more than 74,102 page views. His biography is available in 44 different languages on Wikipedia (up from 42 in 2019). Abu al-Wafa' Buzjani is the 60th most popular mathematician (up from 69th in 2019), the 48th most popular biography from Iran (up from 51st in 2019) and the 2nd most popular Iranian Mathematician.

Abu al-Wafa' Buzjani was a mathematician and astronomer who was most famous for his tables of trigonometric functions.

Memorability Metrics

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    Languages Editions (L)

  • 12.26

    Effective Languages (L*)

  • 2.02

    Coefficient of Variation (CV)

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Among mathematicians, Abu al-Wafa' Buzjani ranks 60 out of 828Before him are Philolaus, Ludolph van Ceulen, Nikolai Lobachevsky, Marin Mersenne, Karl Weierstrass, and Al-Battani. After him are Willebrord Snellius, Zhang Heng, Alfred North Whitehead, Abraham de Moivre, Claude Shannon, and Hermann Minkowski.

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Among people born in 940, Abu al-Wafa' Buzjani ranks 3Before him are Hugh Capet and Ferdowsi. After him are Eadwig, Mieszko I of Poland, Géza, Grand Prince of the Hungarians, Leopold I, Margrave of Austria, Abu-Mahmud Khojandi, Doubravka of Bohemia, Baldwin III, Count of Flanders, Henry III, Duke of Bavaria, and Abū Sahl al-Qūhī. Among people deceased in 998, Abu al-Wafa' Buzjani ranks 1After him are Sigfried, Count of the Ardennes and Koppány.

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In Iran

Among people born in Iran, Abu al-Wafa' Buzjani ranks 48 out of 463Before him are Hassan Rouhani (1948), Báb (1819), Astyages (-700), Cambyses I (-600), Yazdegerd III (624), and Mohammad Mosaddegh (1882). After him are Shams Tabrizi (1185), Abd al-Rahman al-Sufi (903), Rashid-al-Din Hamadani (1247), Antiochus I Soter (-324), Attar of Nishapur (1145), and Cyrus I (-690).

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Among mathematicians born in Iran, Abu al-Wafa' Buzjani ranks 2Before him are Omar Khayyam (1048). After him are Qutb al-Din al-Shirazi (1236), Al-Karaji (953), Abu Nasr Mansur (960), Sharaf al-Dīn al-Ṭūsī (1135), Maryam Mirzakhani (1977), and Caucher Birkar (1978).