Scholar of mathematics and astronomy. (B. ?, Kûh /
According to Ömer Hayyâm, Kuhi was a perfect mathematician. He proved his success rather in the field of geometry and therefore was regarded as one of the followers of Euclid, Apollonios of Perge and Archimedes. In his works, which came until the present, it is seen that he solved problems which led to higher than 2nd level equations. Kûhî’s works were appreciated by Ebû Saîd Ahmed b. Muhammed es-Siczî, İbnü’l-Heysem, Birûnî, Ömer Hayyâm, Nasîrüddîn-i Tûsî and Ebû Nasr İbn Irak, besides Nasîrüddîn-i Tûsî added to Archimedes’ book “Sphere and Cylinder” the spherical sector problem he solved.
Kûhî stated that works of Greek scientists
about the calculation of pressure and gravity centers were ridiculously simple
and far from being scientific. He proved his original methods and discoveries
with very firm evidences. Theories he presented on this issue were unknown
until that date. He was the first scholar to use and apply the terms of
analysis and synthesis in mathematics. Thus Kûhî was the founder of mathematical
analysis method. In natural sciences, in other words in empirical sciences, he
believed that the final result could be achieved using mathematical methods.
His longsighted understanding was adopted after centuries by
Kuhi who was a hardworking and productive scholar was in the same time one of the major promoters of science. His works and efforts encouraged two famous Muslim astronomers Ebü’l-Vefâ Buzcânî and Ebû Hâmid Sağanî and led them to scientific works. Thus Kûhî caused the establishment of academic studies in an extraordinarily high scientific level at that time.
Ebû Sehl’s studies on pressure and gravity centers were discussed only centuries after him, in the 19th century by A. F. Mâbius. All this proves that Islamic scholars created numerous works of high scientific value, centuries ago. Researches on the works of Kûhi, who is regarded as the master of geometry at his time, are still on progress.
Es-Sâire fil-Emtâr alâ Temâd-il E’sâr, Kitâbu Merâkiz-il-Ekr, Kitâb-ul-Usûl alâ Tahrikât-ı Oklîdes, Kitâb-ül-Berkân-it-Tâm, Kitâbu Merâkiz-ud-Devâir alel Hutût min Tarîk-it-Tahlîl Dûn-et-Terkîb, Kitâbu San’at-il-Usturlâb bil-Berâhîn, Kitâbu Ihrâc-il-Hatteyn alâ Nisbetin, Kitâb-ud-Devâir-il-Mütemâsse min Tarîk-it-Tahlîl, Kitâb-uz-Ziyâdât alâ Arşimedes fil-Makâlet-is-Sâniye, Kitâbu İstihrâcı Dil-il-Misbâ’ fid-Dâire, Kitâb-ül-Murâselât Beynel Kûhî ves-Sâbî, Risâletün fî Amel-i Muhammesin.
REFERENCE: Aydın Sayılı / The Observatory in İslam (s. 104-107, 112-117, I960), Rüstem Kaya / Analitik Geometri (s. 150-151, Eskişehir 1992), Mehmet Emin Bozhüyük / “Kûhî” (Türkiye Diyanet Vakfı İslam Ansiklopedisi, c. 26, s. 346-347, 2002), İhsan Işık / Ünlü Bilim Adamları (Türkiye Ünlüleri Ansiklopedisi, C. 2, 2013) - Encyclopedia of Turkey’s Famous People (2013).