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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Al-Mahani ： ウィキペディア英語版 Al-Mahani Abu-Abdullah Muhammad ibn Īsa Māhānī () was a Persian Muslim〔Islamic desk reference: compiled from the Encyclopaedia of Islam - by E. van Donzel - - Page 287〕〔http://facstaff.uindy.edu/~oaks/MHMC.htm〕 mathematician and astronomer from Mahan, Kermān, Persia. A series of observations of lunar and solar eclipses and planetary conjunctions, made by him from 853 to 866, was in fact used by Ibn Yunus. He wrote commentaries on Euclid and Archimedes, and improved Ishaq ibn Hunain's translation of Menelaus of Alexandria's ''Spherics''. He tried vainly to solve an Archimedean problem: to divide a sphere by means of a plane into two segments being in a given ratio of volume. That problem led to a cubic equation, :$x^3\; +\; c^2b\; =\; cx^2$ which Muslim writers called ''al-Mahani's equation''. ==See also== *List of Iranian scientists 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Al-Mahani」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.