%例4-1 通過二維數組擴展創建多維數組
A = [5 7 8; 0 1 9; 4 3 6];
A(:,:,2) = [1 0 4; 3 5 6; 9 8 7]
B(:,:,1,2) = [1 2 3; 4 5 6; 7 8 9];
B(:,:,2,2) = [9 8 7; 6 5 4; 3 2 1];
B(:,:,3,2) = [1 0 1; 1 1 0; 0 1 1];