The best way to add 2 arrays, element by element in order to avoid the memory's problem

Dear colleagues

with this sentence i add the array X with array Y as follow:

X(:,1)=[............];

Y(:,1)=[............];

Z= reshape(bsxfun(@plus,X',Y),1,[]);

but X and Y are too big, therefore Z is a big arrays that Matlab cann't save and it is the same if Z were a matrix. this message appears: "Out of memory"

What do you think that is the best way to solve this problem? I want to avoid the loops in order to have a fast code.

Thank you for your help

[Roger Stafford]

In that case try using a for-loop rather than a vectorized method. It would only add the column vector Z to the memory. Be sure and allocate Z first.