MATLAB: Expanding matrix

Question

Hi all

I want to expand matrix.for example if x=[x1;x2] then the new matrix will be:

xx = [x1 x1 x1;x1 x1 x2;x1 x2 x1;x1 x2 x2;x2 x1 x1;x2 x1 x2;x2 x2 x1;x2 x2 x2]

How can I do that

Answer 1

[j k i]=meshgrid([x1,x2]);
xx = [i(:) j(:) k(:)];