1、 Matrices and vectors %o a matrix of size n xp is a rectangular array of numbers with n rows and p columns of the fom(n行p列矩阵) 息 4=a1a2…马 息 2021/1/21 xt2021/1/21 3 cxt 1、 Matrices and vectors ❖ A matrix of size n p is a rectangular array of numbers with n rows and p columns of the form（ n 行 p列 矩阵） 