How To Calculate Double Summation In Matlb

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Zahid Iqbal Rana 2014-12-4

评论： Hassan Abdelazeem 2022-3-12

Hey there,

I am trying to calculate C, as A=[1 2 3]; B=[1 2 3;4 5 6;7 8 9]; n=3

C=Sigma(i=1 to 3)Sigma(j=1 to3 )A(i)B (i,j)A(j)

Tell me Matlab code to calculate C. Thanks in advance

Azzi Abdelmalek 2014-12-4

A=[1 2 3];
B=[1 2 3;4 5 6;7 8 9];
s=bsxfun(@times,bsxfun(@times, B,A),A');
s=sum(s(:))

Thanks

clc

clear

A=[1 2 3];

B=[1 2 3;4 5 6;7 8 9];

for j=1:3

for i=1:3

c(i,j)=A(i)*B(i,j)*A(j);

end

c=sum(sum(c))

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