summing element is a cell

I have a 1x50 cell 'c', where each element in the cell is a nxn matrix, how can I sum all 50 matrices (c{1}+c{2}+c{3}+.....c{50}) without a loop?

[Jos (10584)]

"without a loop". Why?

Loops are efficient and easy and sometime the best option :-)

Answer 1

[Stephen23]

sum(cat(3,c{:}),3)

[Esegboria Osarhemen]

I get this error

Error using cat

Dimension for sparse matrix concatenation must be <= 2.

[Stephen23]

Either:

1. convert the sparse matrices to full matrices and use the answer I gave you, or
2. mess around with cat and reshape and permute and sum, or
3. use a loop.