Question

I’m trying to write the max function of matlab:

B = max(A,B);

Is it correct?

for i=1:size(A,1)
    for j=1:size(A,2)
       if A(i,j) > B(i,j)
         B(i,j) = A(i,j);
       end
    end
end

thank you!

Answer 1

if you mean that B = max(A,B) should output a matrix containing at each index (i,j) the largest of either A(i,j) or B(i,j), then yes, it is correct (if you supply it with two-dimensional matrices A and B with size(A)>=size(B) )

The standard max function however does not exactly work like that. For example it can also handle higher dimensional matrix input, you can specify along which dimension you want to calculate maximum,…