MATLAB: How to divide two matrix

divinding two matrix

hi everyone I have 2 matrix like

a=[10 12 15;15 16 18;14 18 19;15 19 25;23 45 75]
b=[2 4 5;1 2 2;4 8 6;1 4 7;5 1 2]

how can I divide each elements of matrix "a" by corresponding value in matrix "b" to have

c=[5 3 3;15 8 9;........]

? the original matrix are big. Thanks

Best Answer

c = a./b;

This is a very basic MATLAB question. I suggest you google "matlab tutorial" and look through some of the excellent (and free) online material that is available.

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Optioin 1: Using subplot

A = rand(361,285);
B = reshape(A,19,19,19,15);
%%Save each 19*19 matrix into image

for i = 1:19
    for j = 1:15
        idx = sub2ind([15,19],j,i) ;
         subplot(19,15,idx) ;
         imshow(B(:,:,i,j))
         drawnow
    end
end

Option 2: Using montage

A = rand(361,285);
B = reshape(A,19,19,19,15);
%%Save each 19*19 matrix into image
fnames = cell(1,19*15) ;
for i = 1:19
    for j = 1:15
        idx = sub2ind([15,19],j,i) ;
        fnames{idx} = strcat(num2str(idx),'.jpeg') ;
        imwrite(B(:,:,i,j),fnames{idx}) ;
    end
end
 montage(fnames, 'Size', [19, 15]);

Best Answer

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