%% Section 1 % IT WORKS, HERE IS THE SOLUTION clc; syms L C R E w t uc CLEAR; u=dsolve('L*C*D2uc+R*C*Duc+uc-E*cos(w*t)==0','uc(0)=E','Duc(0)=0','t'); % THERE IS NO F IN THE SOLUTION % BUT IT IS A LONG AND COMPLEX ONE
Solution of dsolve with varible f which is not declared with syms
1 vue (au cours des 30 derniers jours)
Afficher commentaires plus anciens
I am trying to get solution of the differential equation of second order with code given bellow:
clc
clear
syms L C R E w t uc
u=dsolve('L*C*D2uc+R*C*Duc+uc-E*cos(w*t)=0','uc(0)=E','Duc(0)=0','t');
MATLAB 7.0 gives me solution in which exists variable "f". As it can be seen, this variable has not been declared. Consequently, If I want to implement subs function, I can not substitute all variables.
What seems to be problem and please, what would be solution?
0 commentaires
Réponses (1)
RahulTandon
le 7 Juil 2015
Modifié(e) : Walter Roberson
le 8 Juil 2015
0 commentaires
Voir également
Catégories
En savoir plus sur Assumptions 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!