%Define the 3x3 matrix A with all 1's in the first row, all 2's in the second row, and all 3's in the 3rd row. A = [1 1 1; 2 2 2; 3 3 3] %Use the size() function to compute the # of rows and columns ...

%Define the 3x3 matrix A with all 1's in the first row, all 2's in the second row, %and all 3's in the 3rd row. A = [1 1 1; 2 2 2; 3 3 3];% square matrix with 1's in the first row, 2's in the second, ...