Double sum of this formula
5 vues (au cours des 30 derniers jours)
Afficher commentaires plus anciens
Hello
I need help about this formula:
_{E_n}=\sum_{k=1}^{n}\left ( _{d_k} \sum_{l=0}^{1-k}_{K_l}*{sin^{2l}{b_n_-_1}}\right )
Values of K0 and b0 are known
Thanks
0 commentaires
Réponse acceptée
Shwetank Shrey
le 21 Juin 2019
Just verify once if this is the formula that you needed. You would have to define K, b and n beforehand.
symsum((d(k).*symsum((K(l)*((sin(b(n-1))).^(2.*l))),l,0,(1-k))),k,1,n)
Doc for Symbolic Summation : https://www.mathworks.com/help/symbolic/symbolic-summation.html
3 commentaires
Shwetank Shrey
le 24 Juin 2019
Adjusted according to matlab indexing (1 indexed instead of 0 indexed).
d = randi([0 9], 10, 1);
K = randi([0 9], 10, 1);
b = randi([0 9], 10, 1);
n = 3;
sum_k = 0;
for k = 2 : n+1
sum_l = 0;
for l = 1 : 3-k % this was if you had 1-k which i guess is a typo. anyway add 2 to whatever this would otherwise be.
sum_l = sum_l + (K(l) .* (sin(b(n)).^(2.*l)));
end
sum_k = sum_k + (d(k) .* sum_l);
end
disp(sum_k);
Plus de réponses (0)
Voir également
Catégories
En savoir plus sur Logical dans Help Center et File Exchange
Produits
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!