Problem with 3D plotting

Hi!

Lets say I have these matrices: B=1x3 C=1x3 D=3x3 I want to have a 3D plot of D vs B-C plane. How can I do this? I read the help for the surface command but seems like I cant use it like this.

Answer 1

[Youssef Khmou]

hi, 1. You can use plot3 :

 >>B=rand(3,1);
 >>C=rand(3,1);
 >>D=rand(3,3);
 >>plot3(B,C,D)

As size(D)=[3 3] then it is like you do

 >>figure, plot3(B,C,D(:,1))
 >>hold on, plot3(B,C,D(:,2))
 >>plot3(B,C,D(:,3))
 >>hold off

2.Or simply surf/mesh if D=F(B,C) :

 >>mesh(D)
 >>surf(D)

3.try other features :

 doc surfl
 doc contour

[Tina]

The problem is that D is not a function of B and C, and I want to plot the surface of it

[Youssef Khmou]

Its fine, try directly

 >>surf(D), shading interp
 >>mesh(D)