DEFINITIONG Matrices 矩阵 Leta=ai be an m X n matrix. The transgose of A, denoted by a, is the n x m matrix obtained by interchanging the rows and columns ofA. In other words, ifa '=[bil, then bi=ai for I=1, 2,..., n and 1,2,…,,m.M a t r i c e s 矩 阵 DEFINITION 6. Let A = [aij] be an m × n matrix. The transqose of A, denoted by At , is the n × m matrix obtained by interchanging the rows and columns of A. In other words, if At = [bij], then bij = aji for I = 1, 2, … , n and j = 1, 2, … , m