The Islamic world made important advances in science، such as in algebra، chemistry، geology، spherical trigonometry، etc. which were later also transmitted to the West.[1][5] Stefan of Pise translated into Latin around 1127 an Arab manual of medical theory. The method of algorism for performing arithmetic with Indian-Arabic numerals was developed by the Persian al-Khwarizmi (hence the word "Algorithm") in the 9th century، and introduced in Europe by Leonardo Fibonacci (1170-1250).[6] A translation by Robert of Chester of the Algebra by al-Kharizmi is known as early as 1145. Ibn al-Haytham (Alhazen، 980-1037) compiled treatises on optical sciences، which were used as references by Newton and Descartes. Medical sciences were also highly developed in Islam as testified by the Crusaders، who relied on Arab doctors on numerous occasions. Joinville reports he was saved in 1250 by a "Saracen" doctor.[7]
ادامه و منابع در لینک
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