MATLAB: How to concatenate the resulting 2D matrices from a 3D matrix, vertically? Please, I need the solution for a gereric dimension n, i.e., A(:,:,n)

Question

%example 
for a=1:n
      for c=1:n
                  H1(c,a,a)=1;
                  H1(c,c,a)=-1;
      end
  end

Answer 1

Hcell=num2cell(H1,[1,2]);
result=vertcat(Hcell{:});