Yaʿīsh ibn Ibrāhīm al-Umawī
Abū ʿAbdallāh Yaʿīsh ibn Ibrāhīm ibn Yūsuf ibn Simāk al-Andalusī al-Umawī (1400? in Andalusia, Spain – 1489? in Damascus, Syria?) was a 14th-century mathematician.
Works
- Marasim al-intisab fi'ilm al-hisab ("On arithmetical rules and procedures"), first date written in 1373 and hence the birth date above is controversial.
- Raf'al-ishkal fi ma'rifat al-ashkal (a work on mensuration).
References
- A S Saidan, Biography in Dictionary of Scientific Biography (New York 1970–1990).
- Ahmad Salim Saidan (ed.), Yaish ibn Ibrahim al-Umawi, On arithmetical rules and procedures (Aleppo, 1981).
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External links
Saidan, A. S. (2008) [1970-80]. "Al-Umawī, Abū ‘Abdallāh Ya‘īsh Ibn ibrāHīm Ibn Yūsuf Ibn Simāk Al-Andalusī". Complete Dictionary of Scientific Biography. Encyclopedia.com. http://www.encyclopedia.com/doc/1G2-2830904415.html.
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9th century
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10th century
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11th century
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12th century
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13th century
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14th century
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15th century
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16th century
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| Persondata |
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Umawi, Yaish Ibrahim |
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| Date of birth |
1400 |
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| Date of death |
1489 |
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