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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 Achille Brocot ： ウィキペディア英語版 Achille Brocot Achille Brocot (pronounced "broco"〔(Phonetic blunder )〕) (1817–1878) was a French clockmaker〔.〕 and amateur mathematician.〔.〕 He is known for his discovery (contemporaneously with, but independently of, German number theorist Moritz Stern) of the Stern–Brocot tree, a mathematical structure useful in approximating real numbers by rational numbers; this sort of approximation is an important part of the design of gear ratios for clocks.〔.〕 He also made many practical horological innovations including refinement of his father Louis-Gabriel's Brocot escapement and the development of clocks with perpetual calendar mechanisms.〔. Powerpoint presentation based on .〕〔.〕 In order to commercially exploit his original designs, together with Jean-Baptiste Delettrez he established the clockmaking company "Brocot & Delettrez" in Paris on 20 October 1851, a partnership that would continue until his death. ==References== 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「Achille Brocot」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.