给定n个矩阵{nAAA ,2,1}，其中iA和1 iA是可乘的，i=1,2,…,n-1。考察这n个矩阵的连乘积nAAA ,2,1。由于矩阵乘法具有结合律，故计算矩阵的连乘积可以有许多不同的计算次序。这种计算次序可以用加括号的方式来确定。-Given n matrices {nAAA  , 2,1}, and 1 　iA iA which is multiplicative, i = 1,2, ..., n-1. Examine the n matrices with the product nAAA  , 2,1. Since the matrix multiplication with associative, so even calculate the matrix product can have many different calculation order. This calculation can be bracketed sequence approach to identify.