Ibn al‐Raqqam

Ibn al‐Raqqam, Muḥammad ibn Ibrahim al‐Mursi al‐Andalusi al‐Tunisi al‐Awsi(1250-1315), (Arabic: ابن الرقام الأوسي‎), was a 13th-century Andalusian-Arab[1] astronomer, mathematician and physician.[2]

Born in Murcia in 1250, he subsequently left the city to live in North Africa : Bougie and Tunis. Later in his life, he went back to Spain where he settled in Granada after accepting an invitation from its Nasrid ruler, Muhammad II. The nisba "Awsi" in his name indicates that he belonged to the Arab tribe of "Aws".[1]

Although several works have been attributed to him by Ibn al-Khatib, only three ones have survived in an extant form. Two of this works are astronomical tables that are similar in both subject and content. However, differences in the latitudes do exist, since the tables were created to adapt the coordinates of two different cities, Béjaïa and Tunis. The third work,"Risāla fi ʿilm al‐zilal", is an important treatise on sundials,[3] and the only complete one of its kind to have survived from al-Andalus.[4]

Works
  • al‐Zīj al‐shāmil fī tahdhīb al‐kāmil." (astronomy)
  • al‐Zīj al‐qawīm fī funūn al‐taʿdīl wa‐ʾl‐taqwīm."(astronomy)
  • Risāla fī ʿilm al‐ẓilāl."(astronomy)
  • Abkār al‐afkār fī al‐uṣūl."(jurisprudence)
  • a summary of "Kitāb al‐Ḥayawān wa‐ʾl‐khawāṣṣ."(medicine)
gollark: Well, I return to the cave then.
gollark: Well, you can't do anything except probably die.
gollark: This game seems kind of poorly balanced.
gollark: ++roll d20
gollark: I summon a black hole.

See also

References
  1. Sarton, George (1967). Introduction to the History of Science ...: From Homer to Omar Khayyam. Carnegie Institution of Washington.
  2. Samsó, Julio (1 January 2008). "Ibn al‐Raqqām". Encyclopaedia of the History of Science, Technology, and Medicine in Non-Western Cultures. Springer Netherlands. p. 1097. doi:10.1007/978-1-4020-4425-0_9254. ISBN 978-1-4020-4559-2.
  3. Gerli, E. Michael; Armistead, Samuel G. (2003). Medieval Iberia. Taylor & Francis. ISBN 9780415939188.
  4. "Ibn al-Raqqam". islamsci.mcgill.ca.
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