You just need to iterate over the elements of an array? That's easy with linear indexing and does not require creating many scalar variables.
M = magic(5)
for whichElement = 1:numel(M)
fprintf('Element %d of M is %d.\n', whichElement, M(whichElement));
end
Note that this walks down the columns of M first since MATLAB is column-major. But if you need to walk across the rows first, transpose M. Walking down the columns of the transpose of M is like walking across the rows of M itself.
M = magic(5)
Mt = M.';
% Note that I displayed M but I'm indexing into Mt in the code below.
for whichElement = 1:numel(Mt)
fprintf('Element %d of M (row-wise) is %d.\n', whichElement, Mt(whichElement));
end
Also note that the for loop does not need to change at all if I want to display (or operate on) a different sized or shaped M matrix. The only change I would need to make would be to the definition of M itself.
