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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 Descartes' rule of signs ： ウィキペディア英語版 Descartes' rule of signs In mathematics, Descartes' rule of signs, first described by René Descartes in his work ''La Géométrie'', is a technique for determining an upper bound on the number of positive or negative real roots of a polynomial. It is not a complete criterion, because it does not provide the exact number of positive or negative roots. The rule is applied by counting the number of sign changes in the sequence formed of the polynomial's coefficients. If a coefficient is zero, that term is simply omitted from the sequence. ==Descartes' rule of signs== 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「Descartes' rule of signs」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.