Effacer les filtres
Effacer les filtres

How do I specify which variable I want Matlab to solve an equation for so that I don't have to do the algebra myself?

2 vues (au cours des 30 derniers jours)
I am trying to find a way to get Matlab to do the algebra for me so that I don't have to rearrange equations for the variables I want every time I use them. I have tried using solve and fsolve, but I was probably doing it wrong so it didn't get me anywhere.
I am just trying to solve for Ubar in the equation below. Is there a way to put this equation in and specify which variable I want Matlab to solve for?
c = 6;
k = 1.8;
c = Ubar*(0.568+0.433/k)^(-1/k)

Réponse acceptée

Walter Roberson
Walter Roberson le 14 Fév 2021
syms Ubar
c = 6;
k = 1.8;
eqn = c == Ubar*(0.568+0.433/k)^(-1/k)
solve(eqn, Ubar)
However, the answer should be obvious. Ubar is simply multiplied by a constant and the result is equal to a constant, so obviously the solution is
Ubar == c / (0.568+0.433/k)^(-1/k)
  1 commentaire
Michael Boyle
Michael Boyle le 14 Fév 2021
Thank you! I know it's a simple solution, but I wanted to know how to set it up for more complicated equations going forward.

Connectez-vous pour commenter.

Plus de réponses (0)

Produits


Version

R2020b

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by