sum of a product with i differnt to j
4 views (last 30 days)
Show older comments
Hi All,
I want to calculate a sum of a product as following:
I think my problem is quite relative to this topic: Double sum of a product, but in my case I have j ~= i.
I think something like that should work:
t = 1:100;
n = 10;
a = randn(n,1);
P = [];
for i = 1:n
F = [];
for j = 1:n
if j~=i
f = (a(j)-a(i))^n*t;
F = [F,f'];
end
end
p = prod(F,2);
P = [P,p];
end
res = sum(P,2);
But I feel that this solution is not good and something easier should exist?
Thanks a lot,
M.
0 Comments
Accepted Answer
More Answers (0)
See Also
Categories
Find more on Matrix Indexing in Help Center and File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!