No explicit solution using "solve"
3 vues (au cours des 30 derniers jours)
Afficher commentaires plus anciens
Hi I have the following code, where I am trying to solve for the variable "Z", with all other variables having assigned values;
Fc = [80]
k = [0.01]
r1 = [0.2835]
r2 = [0.2201]
Cz = [0.0148]
syms Z
eqn = (Fc * [ (((r1+r2)/k)*exp(r1-r2)*Z) / (((r1/r2)*exp(r1)*Z) - ((r2/r1)*exp(-r2)*Z)) ])-Cz
eqn=solve(eqn,Z,'IgnoreAnalyticConstraints',1)
However, it seems that MATLAB cannot find an explicit solution. It returns a an "empty 0-1 sym". I fear that it may not have a solution, but I am unsure on how to continue to test the problem, perhaps with "fsolve, fzero, or vpasolve".
0 commentaires
Réponse acceptée
Torsten
le 5 Avr 2017
Plot the function and see whether it behaves as expected.
Then try "fzero" to solve for Z.
Best wishes
Torsten.
0 commentaires
Plus de réponses (0)
Voir également
Catégories
En savoir plus sur Systems of Nonlinear Equations 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!