How to implement an equation containing nested Summations

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Sarath S
Sarath S 2019-11-26
评论： Sarath S 2019-11-27
I am trying to write a matlab code to evaluate an error function given as:
Capture.PNG
I tried the following line of matlab code but there seems to be some problem with it.
E=0;
for i = 1:n-1
for j = i+1:n
for k = 1:n-1
for l = k+1:n
E =E + ((t(i,j)*(D(k) - D(l)) - t(k,l)*(D(i)-D(j))))^2;
end
end
end
end
I am not sure whether I have used the for loops correctly. Please advice. Thanks.
  2 个评论
David Goodmanson
David Goodmanson 2019-11-27
Hi Sarath, it looks all right. There is an unneeded set of outermost parentheses which should not matter.
Sarath S
Sarath S 2019-11-27
Thank you for the verification. I think the problem was with one of my variables. It's working much better now.

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