# Ibn Yahyā al-Maghribī al-Samaw'al

Ibn Yahyā al-Maghribī al-Samaw'al

transl|ar|ALA|Ibn Yaḥyā al-Maghribī al-Samawʾal مغربي، السموءل بن يحي، also known as Samau'al al-Maghribi (c. 1130 in Baghdad, Iraq &ndash; c. 1180 in Maragha, Iran) was an Arab Muslim mathematician and astronomer of Jewish descent. [ [http://www.jewishencyclopedia.com/view.jsp?artid=174&letter=A Jewish Encyclopedia] ] His father was a Jewish Rabbi from Morocco, but al-Samawʾal converted to Islam. [Medieval Cultures in Contact, By Richard Gyug, pg. 123]

Mathematics

Al-Samaw'al wrote the mathematical treatise "al-Bahir fi'l-jabr", meaning "The brilliant in algebra", at the young age of nineteen.

He also developed the concept of proof by mathematical induction, which he used to extend the proof of the binomial theorem and Pascal's triangle previously given by al-Karaji. Al-Samaw'al's inductive argument was only a short step from the full inductive proof of the general binomial theorem. [Katz (1998), p. 259:

"Like the proofs of al-Karaji and ibn al-Haytham, al-Samaw'al's argument contains the two basic components of an inductive proof. He begins with a value for which the result is known, here "n" = 2, and then uses the result for a given integer to derive the result for the next. Although al-Samaw'al did not have any way of stating, and therefore proving, the general binomial theorem, to modern readers there is only a short step from al-Samaw'al's argument to a full inductive proof of the binomial theorem."
]

Polemics

He also wrote the famous polemic book debating Judaism known as "Silencing the Jews" ("Refutation of the Jews") or in Spanish "Epistola Samuelis Maroccani" and later known in English as "The blessed jew of Morocco". [ [http://links.jstor.org/sici?sici=0065-6798(1964)32%3C5%3ASAIAST%3E2.0.CO%3B2-W Samau'al al-Maghribi Ifham Al-Yahud: Silencing the Jews / placeholder for Arabic language transliteration, "by Moshe Perlmann"] ] [Samau'al al-Maghribi: Ifham Al-Yahud: Silencing the Jews / placeholder for Arabic language transliteration by Moshe Perlmann, Proceedings of the American Academy for Jewish Research, Vol. 32, Samau'al Al-Maghribi Ifham Al-Yahud: Silencing the Jews (1964)]

Notes

References

*DSB|first=A.|last=Anouba|title=Samawʾal, Ibn Yaḥyā al-Maghribī al-
*MacTutor|id=Al-Samawal|title=Ibn Yahya al-Maghribi Al-Samawal
*Samau'al al-Maghribi: Ifham Al-Yahud: Silencing the Jews / placeholder for Arabic language transliteration by Moshe Perlmann, Proceedings of the American Academy for Jewish Research, Vol. 32, Samau'al Al-Maghribi Ifham Al-Yahud: Silencing the Jews (1964)
*Samaw'al al-Maghribi: Ifham al-yahud, The early recension, by مغربي، السموءل بن يحي، d. ca. 1174. al-Samawʼal ibn Yaḥyá Maghribī; Ibrahim Marazka; Reza Pourjavady; Sabine Schmidtke Publisher: Wiesbaden : Harrassowitz, 2006.OCLC: 63514265
*Perlmann, Moshe, "Eleventh-Century Andalusian Authors on the Jews of Granada" Proceedings of the American Academy for Jewish Research 18 (1948-49):269-90.

* [http://links.jstor.org/sici?sici=0021-1753(197606)67%3A2%3C307%3AAEAD%3E2.0.CO%3B2-9 Al-Bahir en Algebre d'As-Samaw'al translation by Salah Ahmad, Roshdi Rashed, Author(s) of Review: David A. King, Isis, Vol. 67, No. 2 (Jun., 1976), pp. 307-308]
* [http://links.jstor.org/sici?sici=0369-7827(1950)1%3A9%3C555%3AAAAOSP%3E2.0.CO%3B2-U Al-Asturlabi and as-Samaw'al on Scientific Progress, Osiris, Vol. 9, 1950 (1950), by Franz Rothenthal, pp. 555-566]

Wikimedia Foundation. 2010.

### Look at other dictionaries:

• Ibn Yahya al-Maghribi al-Samaw'al — Ibn Yahyā al Maghribī al Samaw al Ibn Yahyā al Maghribī al Samaw al est un mathématicien et médecin de langue arabe né à Bagdad[1] vers 1130[2] et mort à Maragha vers 1180 [3]. Né d une famille juive originaire de Fes, il se convertit à l islam… …   Wikipédia en Français

• Ibn Yahyā al-Maghribī al-Samaw'al — est un mathématicien et médecin de langue arabe né à Bagdad[1] vers 1130[2] et mort à Maragha vers 1180[3]. Né sous le nom de Samuel Abu Naṣr ibn Abbas, d une famille juive originaire de Fès, il se convertit à l islam vers 40 ans et changea de… …   Wikipédia en Français

• Al-Samaw'al — Ibn Yahyā al Maghribī al Samaw al Ibn Yahyā al Maghribī al Samaw al est un mathématicien et médecin de langue arabe né à Bagdad[1] vers 1130[2] et mort à Maragha vers 1180 [3]. Né d une famille juive originaire de Fes, il se convertit à l islam… …   Wikipédia en Français

• Muḥammad ibn Mūsā al-Khwārizmī — al Khwārizmī redirects here. For other uses, see al Khwārizmī (disambiguation). Muḥammad ibn Mūsā al Khwārizmī …   Wikipedia

• Muhyi al-Dīn al-Maghribī — Muḥyi al Dīn al Maghribī, (Arabic,محي الدين المغربي) (c.1220 Spain – c.1283 Iran) was a Muslim astronomer and mathematician born in Spain, worked in Damascus, Syria and eventually in the Maragha observatory in Maragha, Ilkhanate of Persia, where… …   Wikipedia

• Muḥammad ibn Jābir al-Ḥarrānī al-Battānī — Albategnius redirects here. For the lunar crater, see Albategnius (crater). Al Battānī A modern artist s impression of al Battānī holding an astrolabe Full name Al Battānī Born c. 858 CE Harran …   Wikipedia

• Nazif ibn Yumn — Qass (died 990) was a Persian mathematician of the Middle Ages. He flourished under the Buwayhid sultan Adud al dowleh. He was also a translator of Greek into Arabic, translating the Tenth book of Euclid. (H. Suter: Mathematiker, 68, 1900).… …   Wikipedia

• 'Abd al-Hamīd ibn Turk — ʿAbd al Hamīd ibn Turk (fl. 830), known also as ʿAbd al Hamīd ibn Wase ibn Turk Jili was a ninth century Turkic Muslim mathematician. Not much is known about his biography. The two records of him, one by Ibn Nadim and the other by al Qifti are… …   Wikipedia

• Na'im ibn Musa — Na‘īm ibn Mūsā (Arabic: نعيم بن موسى‎) was a mathematician of the Islamic Golden Age and a pupil of Thabit Ibn Qurra. Na im was from Baghdad and lived in the second half of the 9th century. He was the son of Muḥammad ibn Mūsā ibn Shākir, the… …   Wikipedia

• Al-Maghribī — (meaning from Maghreb ) can refer to the following persons:*transl|ar|ALA|Ibn Yaḥyā al Maghribī al Samawʾal, mathematician and astronomer of the 12th century. *transl|ar|ALA|Muḥyi al Dīn al Maghribī (1220 1283), an Arab astronomer *Mahmud… …   Wikipedia