翻訳と辞書 Words near each other ・ Signature block ・ Signature Books ・ Signature cocycle ・ Signature Creative ・ Signature crime ・ Signature defect ・ Signature dish ・ Signature Drinks ・ Signature file ・ Signature forgery ・ Signature Half-Step a Retrospective 2000-2014 ・ Signature in the Cell ・ Signature island ・ Signature line of credit ・ Signature mark ・ Signature matrix ・ Signature move ・ Signature of a knot ・ Signature of Divine (Yahweh) ・ Signature operator ・ Signature Place ・ Signature program ・ Signature recognition ・ Signature Record Type Definition ・ Signature Records ・ Signature School ・ Signature Select ・ Signature song ・ Signature Sound ・ Signature Sounds Recordings 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 Signature matrix ： ウィキペディア英語版 Signature matrix In mathematics, a signature matrix is a diagonal matrix whose diagonal elements are plus or minus 1, that is, any matrix of the form:〔.〕 :$A=\backslash begin$ \pm 1 & 0 & \cdots & 0 & 0 \\ 0 & \pm 1 & \cdots & 0 & 0 \\ \vdots & \vdots & \ddots & \vdots & \vdots \\ 0 & 0 & \cdots & \pm 1 & 0 \\ 0 & 0 & \cdots & 0 & \pm 1 \end Any such matrix is its own inverse, hence is an involutory matrix. It is consequently a square root of the identity matrix. Note however that not all square roots of the identity are signature matrices. Noting that signature matrices are both symmetric and involutory, they are thus orthogonal. Consequently, any linear transformation corresponding to a signature matrix constitutes an isometry. Geometrically, signature matrices represent a reflection in each of the axes corresponding to the negated rows or columns. ==See also== * Metric signature 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「Signature matrix」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.