Abū al-Jūd Muḥammad b. Aḥmad b. al-Layth was an
Iranian
Iranian () may refer to:
* Something of, from, or related to Iran
** Iranian diaspora, Iranians living outside Iran
** Iranian architecture, architecture of Iran and parts of the rest of West Asia
** Iranian cuisine, cooking traditions and practic ...
mathematician who lived during 10th century and was a contemporary of
al-Biruni
Abu Rayhan Muhammad ibn Ahmad al-Biruni (; ; 973after 1050), known as al-Biruni, was a Khwarazmian Iranian scholar and polymath during the Islamic Golden Age. He has been called variously "Father of Comparative Religion", "Father of modern ...
. He used
conic
A conic section, conic or a quadratic curve is a curve obtained from a cone's surface intersecting a plane. The three types of conic section are the hyperbola, the parabola, and the ellipse; the circle is a special case of the ellipse, thou ...
s to solve
quartic and cubic equations, a century before the more famous work of
Omar Khayyam
Ghiyāth al-Dīn Abū al-Fatḥ ʿUmar ibn Ibrāhīm Nīshābūrī (18 May 1048 – 4 December 1131) (Persian language, Persian: غیاث الدین ابوالفتح عمر بن ابراهیم خیام نیشابورﻯ), commonly known as Omar ...
, although his solution did not deal with all the cases.
Life
Not much is known about his life. He seems to have lived in the east of
Khurasan
KhorasanDabeersiaghi, Commentary on Safarnâma-e Nâsir Khusraw, 6th Ed. Tehran, Zavvâr: 1375 (Solar Hijri Calendar) 235–236 (; , ) is a historical eastern region in the Iranian Plateau in West Asia, West and Central Asia that encompasses wes ...
, within
Samanid
The Samanid Empire () was a Persianate society, Persianate Sunni Islam, Sunni Muslim empire, ruled by a dynasty of Iranian peoples, Iranian ''dehqan'' origin. The empire was centred in Greater Khorasan, Khorasan and Transoxiana, at its greatest ...
territory.
Sa'id al-Andalusi claimed that he lived in Valencia (Balansiya) and died in 1014 or 1015, but other sources didn't mention these information. It is likely that he became a scribe after acquiring basic knowledge on mathematics.
References
10th-century Iranian mathematicians
Scholars from the Samanid Empire
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