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E=[-2 -1 0 1 2;
   -2 -1 0 1 2;
   -2 -1 0 1 2;

   -2 -1 0 1 2;

   -2 -1 0 1 2];

e=E';

a=[0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9];

for i=1:9

U=a(i)*E+(1-a(i))*e;

end

round(U);

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