| [ QuizWit ] in KIDS 글 쓴 이(By): sisyphe () 날 짜 (Date): 2001년 7월 3일 화요일 오전 05시 24분 12초 제 목(Title): puking inverse 2 Let X be m by n random matrix whose elements are iid Gaussian with mean zero and unit variance. Then compute E(XAX') when A is an arbitrary matrix. The result can be stated beautifully involving the trace of A. Have fun. :) |