3D graph drawing

I have a few functions. I would like to draw them on the same 3D graph. However, I was not able to achieve this. The matlab is only executing the last command. the example is, X=[...]; Y=[...]; Z=[...]; W=[...]; V=[...]; surf(X,Y,Z) surf(X,W,V) matlab is executing the last command which is surf(X,W,V) rather than two commands surf(X,Y,Z) and surf(X,W,V). Could anyone help me with this please? Thank you very much.

Answer 1

[Sean de Wolski]

Hold the figure on:

figure; hold on
surf(x,w,v)
surf(x,y,z)

[zhe li]

Thank you very much.

Answer 2

[Honglei Chen]

You can try hold

surf(X,Y,Z);
hold on;
surf(X,W,V);

[zhe li]

Thank you very much.