Plotting mesh plots

[asha g]

I have the following code :
N = 10; niter = 5; l= 6; t = niter* deltaT; deltaT =
0.008;
x = linspace(0,l,N);
y = linspace(0,t,niter);

[X,Y]= meshgrid(x,y);
Z= V;
mesh(X,Y,Z)

I don;t get a mesh plot but the following error
message: 
error: surface: x, y, and z must have same dimensions
error: evaluating if command near line 114, column 7
error: evaluating if command near line 106, column 5
error: evaluating if command near line 76, column 3
error: called from `surface:__surface__' in file
`/usr/local/share/octave/3.0.0/m/plot/surface.m'
error: called from `surface' in file
`/usr/local/share/octave/3.0.0/m/plot/surface.m'
error: evaluating assignment expression near line 37,
column 7
error: called from `mesh' in file
`/usr/local/share/octave/3.0.0/m/plot/mesh.m'
error: near line 129 of file
`/home/proj/08/cesasha/aseasha/cabunbactoct.m'


Please explain. I don't understand where surface is
coming from. I used the matlab commands for mesh. Are
they the same for Octave 3.0 running on RHEL 4.0

Thanks
Asha 

 
   
   
   
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