pre allocating triple loops

hi,

how to pre-allocate this:

for ii = 1:numel(L);

for jj=1:numel(L);

for kk=1:45;

c=cross(L1(ii,:),a{jj}(kk,:));

end

end

end

Answer 1

[Stephen23]

n = numel(L);
c = cell(n,n,45);
for ii = 1:n
    for jj = 1:n
        for kk = 1:45        
            c{ii,jj,kk} = cross(L1(ii,:),a{jj}(kk,:));
        end
    end
 end