building a 3D matrix

I understand how the following works, x=[a b; c d]; x(:,:,2)=x; which will give x as 3-D matrix. However, i'm writing a code for which i need x to be updated each time. for example, for i=1:2; for j=1:3; x(:,j)=[i+j+1;j*2 ]; end x(:,:,i)=x end

In this case, I want to have a result of 2*3*2 matrix, x(:,:,1) =

     3     4     5
     2     4     6
x(:,:,2) =

     4     5     6
     2     4     6
However, it turns out I only get

x(:,:,1) =

     4     5     6
     2     4     6

x(:,:,2) =

     4     5     6
     2     4     6
I know the problem is the x(:,:,i)=x line as x gets updated and renewed for each loop and covered by the new data again.
But I couldn't assign new name for building this matrix.
Can anyone help

Answer 1

[Thomas]

All you need to do is

for i=1:2; 
    for j=1:3; 
        x(:,j,i)=[i+j+1;j*2 ];  % add the 3rd dimension i
    end; 

end

P.S. It is good idea to refrain from using i & j as variable names since they are the complex function in MATLAB

[Qian]

thank you so much. That's what i've missed.

[Gowthami Odeti]

Thank you so much, works awesome!