例句與造句

1. the relationship between the rank of partitioned matrix and the one of submatrix is given with the partitioned matrix of the generalized inverse matrix, and the range of the rank of three matrices sum is obtained
   摘要用分塊矩陣的廣義逆矩陣給出了分塊矩陣的秩與子塊秩的關(guān)系，及三個矩陣和的秩的范圍。
2. It's difficult to find matrix sum in a sentence. 用matrix sum造句挺難的