Adding data in cells

I have a cell array size(C)= 42 1 C= [31*32 double] [31*32 double] [31*32 double] [31*32 double] . . .

I want to add all these cells in such a way that the final cell which i obtain is same size [31 * 32] as individual cells having the values added on same positions.

Answer 1

[Yoav Livneh]

There's probably a way to do this without for loops but this is my suggestion:

L=length(C);
MatSize=size(C{1});
D=zeros(MatSize);
for jj=1:L
  D=D+C{jj};
end

Answer 2

[Paulo Silva]

C{end+1}=C{1:end};

This will add another cell to C that's the sum of the previous cells.