column addding

2011 6 8

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i mean i have: y= 1 2 5 3 5 7 2 6 4

x= 1 -2 7 x= 3 5 4 x= 2 -6 2 now i need output as: z=(1-1)^2+(2+2)^2+(5-7)^2 =20 and so on

and so on for z(1),z(2). please help!!

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Andrei Bobrov 2011-6-8

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y = [1 2 5 3 5 7 2 6 4];
x = [1 -2 7 3 5 4 2 -6 2];
z = sum(reshape((x-y).^2,3,[]));

thanks

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