MATLAB Why Does My Matlab Code Give an Out of Bounds Error?

[MaxManus]

Hey, I have defined

pu = zeros(nx,ny,N);
pv = zeros(nx,ny,N);
pu(:,ny,:) = 1;

and written the loop:
line 38-40

 for i = 2:(nx-1);
        for i = 2:(ny-1);
            ps(i,j) = p(i,j,n) - a1*(pu(i+1,j,n) - pu(i,j,n)) -a2*(pv(i,j+1,n) - pv(i,j,n));

and I get the error

? Attempted to access pv(2,11,1); index out of bounds because size(pv)=[10,10,10].

Error in ==> fluidmekanikk at 40
ps(i,j) = p(i,j,n) - a1*(pu(i+1,j,n) - pu(i,j,n)) -a2*(pv(i,j+1,n) - pv(i,j,n));

Could someone help me with the error?

 

[Hurkyl]

Well, obviously, you tried to access p(2,11,1) which does not exist.

Looking at the indexes, it was probably pv(i,j+1,n), since that goes highest int he middle term.

Now... what range does j iterate over?

 

[MaxManus]

Well, obviously, you tried to access p(2,11,1) which does not exist.

Looking at the indexes, it was probably pv(i,j+1,n), since that goes highest int he middle term.

Now... what range does j iterate over?

Thanks for fast reply and solution.
The code

for i = 2:(nx-1);
        for i = 2:(ny-1);

was supposed to be

for i = 2:(nx-1);
        for j = 2:(ny-1);

and I had used the j as variable earlier.