Ibn al-Samh

Abū al‐Qāsim Aṣbagh ibn Muḥammad ibn al‐Samḥ al‐Gharnāṭī al-Mahri[1] (born 979, Córdoba; died 1035, Granada), also known as Ibn al‐Samḥ, was an Arab[2] mathematician and astronomer in Al-Andalus. He worked at the school founded by Al-Majriti in Córdoba, until political unrest forced him to move to Granada, where he was employed by Ḥabbūs ibn Māksan. He is known for treatises on the construction and use of the astrolabe, as well as the first known work on the planetary equatorium. Furthermore, in mathematics he is remembered for a commentary on Euclid and for contributions to early algebra, among other works.[3][4] He is one of several writers referred to in Latin texts as "Abulcasim."[5]

The exoplanet Samh, also known as Upsilon Andromedae c, is named in his honor.[6]

References
  1. al-Andalusi, Sa'id (2010). Science in the Medieval World. University of Texas Press. ISBN 9780292792319.
  2. Taton, René (1966). A General History of the Sciences. Thames and Hudson.
  3. Rius, Mònica (2007). "Ibn al‐Samḥ: Abū al‐Qāsim Aṣbagh ibn Muḥammad ibn al‐Samḥ al‐Gharnāṭī". In Thomas Hockey; et al. (eds.). The Biographical Encyclopedia of Astronomers. New York: Springer. p. 568. ISBN 978-0-387-31022-0.
  4. Rashed, Roshdi (2013-03-07). Founding Figures and Commentators in Arabic Mathematics: A History of Arabic Sciences and Mathematics. Routledge. ISBN 9781136620003.
  5. North, John (2008-07-15). Cosmos: An Illustrated History of Astronomy and Cosmology. University of Chicago Press. p. 216. ISBN 9780226594415.
  6. "NameExoWorlds". nameexoworlds.iau.org. Retrieved 2017-06-12.


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