F{1,1} = [1 2; 3 4];
F{1,2} = [-1 0; 0 1];
F{2,1} = [7 8; 4 1];
F{2,2} = [4i 3+2i; 1-8i 5];
% 通過循環語句轉換成數值數組，對于for語句請參考下一章內容
for k = 1:4
   for m = 1:2
      for n = 1:2
         NUM(m,n,k) = F{k}(m,n);
      end
   end
end
反之也可以通過循環語句把數值數組轉換成元胞數組，如下：
G = cell(1,16);
for m = 1:16
   G{m} = NUM(m);
end