Abu al-Jud

Abū al-Jūd, Muḥammad b. Aḥmad b. al-Layth was an Iranian mathematician. He lived during 10th century and was a contemporary of Al-Biruni. Not much is known about his life. He seems to have lived in the east of Khurasan, within Samanid 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.[1]

In the 10th century, Abu al-Jud used conics to solve quartic and cubic equations, a century before the more famous work of Omar Khayyam,[2] although his solution did not deal with all the cases.[3]

References
  1. Ali, Mowlavi, Muhammad; Rahim, Gholami. "Abū al-Jūd". Encyclopaedia Islamica. doi:10.1163/1875-9831_isla_com_0092. Cite journal requires |journal= (help)
  2. Sidoli, Nathan; Brummelen, Glen Van (2013-10-30). From Alexandria, Through Baghdad: Surveys and Studies in the Ancient Greek and Medieval Islamic Mathematical Sciences in Honor of J.L. Berggren. Springer Science & Business Media. p. 110. ISBN 978-3-642-36736-6.
  3. Waerden, Bartel L. van der (2013-06-29). A History of Algebra: From al-Khwārizmī to Emmy Noether. Springer Science & Business Media. p. 29. ISBN 978-3-642-51599-6.


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