x=-2:0.2:2;
y=-2:0.2:2;
[x,y]=meshgrid(x,y);
z=y.*exp(-y.^2-x.^2);
figure(1)
subplot(1,2,1);
mesh(x,y,z);%網線圖
title('網格圖')
xlabel('x');
ylabel('y');
zlabel('z');
subplot(1,2,2);surf(x,y,z);?%表面圖?
title('表面圖');