Abū ʿAbdallāh Yaʿīsh ibn Ibrāhīm ibn Yūsuf ibn Simāk al-Andalusī al-Umawī () (1400? in
Al-Andalus
Al-Andalus translit. ; an, al-Andalus; ast, al-Ándalus; eu, al-Andalus; ber, ⴰⵏⴷⴰⵍⵓⵙ, label= Berber, translit=Andalus; ca, al-Àndalus; gl, al-Andalus; oc, Al Andalús; pt, al-Ândalus; es, al-Ándalus () was the M ...
– 1489 in
Damascus,
Syria) was a 15th-century Spanish-
Arab
The Arabs (singular: Arab; singular ar, عَرَبِيٌّ, DIN 31635: , , plural ar, عَرَب, DIN 31635: , Arabic pronunciation: ), also known as the Arab people, are an ethnic group mainly inhabiting the Arab world in Western Asia, ...
mathematician
A mathematician is someone who uses an extensive knowledge of mathematics in their work, typically to solve mathematical problems.
Mathematicians are concerned with numbers, data, quantity, structure, space, models, and change.
History
On ...
.
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
Bibliography
*
*Ahmad Salim Saidan (ed.), Yaish ibn Ibrahim al-Umawi, ''On arithmetical rules and procedures'' (Aleppo, 1981).
External links
*
1400 births
1489 deaths
15th-century Arabs
Mathematicians of Al-Andalus
Medieval Syrian mathematicians
14th-century mathematicians
15th-century Syrian people
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