Question: Plotting two functions of 2 variables in maple

I am trying to plot (3-Dimensional) two functions of 2 variables in maple. Here is my code:


K := (V, E) --> E*log(V)
P:= (V, E) --> E + V*log(V)
with(plots):
plot(K(V, E), P(V,E), V = 0 .. 20, E = 0 .. 190)               /*This line does not work*/
I want a 3D plot where a point in the graph would be: (K(V, E), V, E)
 
  1. How can I plot a 3-Dimensional Plot of two functions with 2 variables?
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