MATLAB: What’s wrong in this code? why is this not displaying whole matrix?and how to sum whole matrix

for loopmatrix array

M=input('Enter number of manufacturers'); D=input('Enter number of distributers'); O=1; T=1; R=1; Z=1; for m=1:M; for d=1:D; Cmd=zeros(M:D); Cmd(m,d)=input('Enter traveling cost for manufacturer to distributer'); disp(Cmd); end end

Best Answer

You're overwriting the matrix Cmd every iteration because of the line Cmd=zeros(M:D). Take it outside of both for loops.
M=input('Enter number of manufacturers: '); 
D=input('Enter number of distributers: '); 
O=1; T=1; R=1; Z=1; 
Cmd=zeros(M:D);
for m=1:M 
    for d=1:D 
        Cmd(m,d)=input('Enter traveling cost for manufacturer to distributer: '); 
        disp(Cmd); 
    end
end
To sum over all the elements of the matrix you can use sum(Cmd(:)).
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