翻訳と辞書 Words near each other ・ Jiang Chunfang ・ Jiang Chunyun ・ Jiang County ・ Jiang Cuihua ・ Jiang Daming ・ Jiang Dawei ・ Jia Sarai ・ Jia Sidao ・ Jia Song ・ Jia Su ・ Jia Tanchun ・ Jia Tianzi ・ Jia Ting'an ・ Jia Tong ・ Jia Wenpeng ・ Jia Xian ・ Jia Xiaozhong ・ Jia Xichun ・ Jia Xiuquan ・ Jia Xu ・ Jia Yi ・ Jia Yi's Former Residence ・ Jia Yinghua ・ Jia Yong ・ Jia Yongsheng ・ Jia Yu Channel ・ Jia Yubing ・ Jia Yueting ・ Jia Yunbing ・ Jia Zhanbo Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Jia Xian ： ウィキペディア英語版 Jia Xian Jia Xian (; ca. 1010–1070) was a Chinese mathematician from Kaifeng of the Song dynasty. ==Biography== According to the history of the Song dynasty, Jia was a palace eunuch of the Left Duty Group. He studied under the mathematician Chu Yan, and was well versed in mathematics, writing many books on the subject. Jia Xian invented the Pascal's triangle (Jia Xian triangle) around the first half of the 11th century, about six centuries before Pascal. Jia used it as a tool for extracting square and cubic roots. The original book by Jia entitled ''Shi Suo Suan Shu'' was lost; however, Jia's method was expounded in detail by Yang Hui, who explicitly acknowledged his source: "My method of finding square and cubic roots was based on the Jia Xian method in ''Shi Suo Suan Shu''."〔Wu Wenjun chief ed, ''The Grand Series of History of Chinese Mathematics'' Vol 5 Part 2, chapter 1, Jia Xian〕 A page from the ''Yongle Encyclopedia'' preserved this historic fact. Jia Xian's additive-multiplicative method implemented the "Horner" rule.〔Jean-Claude Martzloff, ''A History of Chinese Mathematics'' Springer, p142〕 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「Jia Xian」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.