Introduction - If you have any usage issues, please Google them yourself
Given n matrices {A1, A2, ..., An}, where Ai and Ai+1 is a mere of, i = 1,2, ..., n-1. Study the n matrix with the product A1A2 ... An. Since matrix multiplication to meet with law, so the calculation of the matrix with the product can have many different ways to calculate the order, the order of this calculation can be used to determine the way in parentheses.