| [ KAIST ] in KIDS 글 쓴 이(By): iLUSiON (화려한집념) 날 짜 (Date): 2003년 5월 9일 금요일 오전 03시 04분 25초 제 목(Title): Re: [Q]이 행렬 이름은? why don't you call it backflip matix. ^^ i don't think you wana call it by that name. it is an idempotent matrix of period 2, i.e. A^3 = A. among statisticans, we denote it by J so that J^2 = I. cool? just call it J-matrix. iLUSiON whitepolarcow@hotmail.com |