Suppose that we partition each of A,B,and Cinto fourxn/2 matrices 4=(如）B=()c-(8 so that we rewrite the equation C =A.B as (8)-(:)() Equation (4.10)corresponds to the four equations C1=A1·B11+A12·B21, C2=A1·B12+A12·B22, 1个n阶方阵相乘的问题 C21=A21B11+A2B21 可以分解为8个n/2阶方 C 阵相乘的子问题。 =A2I·B12+A22·B22.1个n阶方阵相乘的问题 可以分解为8个n/2阶方 阵相乘的子问题