Integration of a Series Sum
4 vues (au cours des 30 derniers jours)
Afficher commentaires plus anciens
I want to write a series sum in terms of a variable that I will integrate numerically:
syms q
fun = @(k) symsum(k*q,q,0,10)
integral(fun,0,1)
How can this be done?
0 commentaires
Réponse acceptée
Walter Roberson
le 12 Déc 2012
Modifié(e) : Walter Roberson
le 12 Déc 2012
sum(k*q,q,0,10) is going to be k * sum(q,q,0,10) which is going to be k * (10 * (10+1) / 2) which is going to be 45*k
integral(45*k, k, 0, 1) is going to be 45*k^2/2 evaluated at 1, which will be 45/2 .
Anyhow:
syms k q
fun = matlabFunction( symsum(k*q, q, 1, 10), 'vars', k);
and then integrate fun
Plus de réponses (0)
Voir également
Catégories
En savoir plus sur Numbers and Precision dans Help Center et File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!