multiplying a matrix

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FIR
FIR 2012-1-10
i have a matrix
A=[3 5 7
5 6 0
5 9 4]
i want to square each element and add along row wise and display
for ex
3^2+5^2+7^2
ans is 89
so i need as
89
71
122
pleas guide
  15 个评论
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FIR
FIR 2012-1-10
chandra can u tell how to process this am struch here for long
http://www.sendspace.com/file/scymbl
Andrei Bobrov
Andrei Bobrov 2012-1-10
i1 = 1:2;
r = 1:20;
out = sum(q.^2.*(i1.'*r))

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采纳的回答

Chandra Kurniawan
Chandra Kurniawan 2012-1-10
A=[3 5 7;
5 6 0;
5 9 4];
for x = 1 : 3
B(x,:) = sum(A(x,:).^2);
end
B

更多回答（1 个）

Andrei Bobrov
Andrei Bobrov 2012-1-10
B = sum(A.^2,2);

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