Matlab常见矩阵

Row = 3;Col = 3;
[X,Y] = meshgrid(1:3,1:3);
Ones = ones(Row,Col);subplot(3,3,1);plot3(X,Y,Ones);grid on;title('ones');
Zeros = zeros(size(Ones));subplot(3,3,2);plot3(X,Y,Zeros);grid on;title('zeros');
Eyes = eye(Row);subplot(3,3,3);plot3(X,Y,Eyes);grid on;title('eye');
Magic = magic(Row);subplot(3,3,4);plot3(X,Y,Magic);grid on;title('magic');
Diag = diag(1:3);subplot(3,3,5);plot3(X,Y,Diag);grid on;title('diag');
Randu = rand(Row,Col);subplot(3,3,6);plot3(X,Y,Randu);grid on;title('rand');
Randn = randn(Row,Col);subplot(3,3,7);plot3(X,Y,Randn);grid on;title('randn');
Triu = triu(Randn);subplot(3,3,8);plot3(X,Y,Triu);grid on;title('triu');
Tril = tril(Randn);subplot(3,3,9);plot3(X,Y,Tril);grid on;title('tril');