got confuse .. where is my mistake

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Abdur Rob
Abdur Rob 2020-9-27
评论： Abdur Rob 2020-9-27
what should i do to solve OR where is my mistake
function summa = eja(A)
summa = 0;
[r c] = size(A);
for i = 1:r
summa = summa + (sum(A(r>=c)));
end
end

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回答（1 个）

Alan Stevens
Alan Stevens 2020-9-27
c is fixed as the last column. So in
[r c] = size(A);
for i = 1:r
summa = summa + (sum(A(r>=c)));
end
you are trying to sum the values of just those rows that are equal to or greater than the number of columns.
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Alan Stevens
Alan Stevens 2020-9-27
编辑：Alan Stevens 2020-9-27
@Abdur Rob Yes. That's what I said! I showed the lines that were giving the trouble. The following will do the sum you want:
function summa = eja(A)
summa = 0;
[r, c] = size(A);
for i = 1:r
summa = summa + sum(A(i,i:c));
end
end

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