Matlab 2015a Script to solve the equation w=-tan(0.8*w)

1 vue (au cours des 30 derniers jours)
T Hafid
T Hafid le 7 Mai 2022
Commenté : Star Strider le 7 Mai 2022
To solve the equation symbolically or numerically, I wrote the following script (Matlab 2015a):
%-----------------------------------------------------------
syms w
EQ = w + tan (0.8 * w) == 0;
S = solve (EQ, w)
%-----------------------------------------------------------
But I don't get the expected result, that is w = 2.4482, rather I get :
Warning: Cannot solve symbolically. Returning a numeric approximation instead.
> In solve (line 305)
S =
0
Please, any help to fix the script

Connectez-vous pour répondre à cette question.

Réponse acceptée

Star Strider
Star Strider le 7 Mai 2022
Ran in:
Use vpasolve with an initial value (or range of values as described in Specify Ranges of Solutions) —
syms w
EQ = w + tan (0.8 * w) == 0;
S = vpasolve (EQ, w, 2)
S = 
2.4482183943587910343011460497668
.
  2 commentaires
T Hafid
T Hafid le 7 Mai 2022
Thank you
Star Strider
Star Strider le 7 Mai 2022
My pleasure!
If my Answer helped you solve your problem, please Accept it!
.

Connectez-vous pour commenter.

Plus de réponses (0)

Catégories

En savoir plus sur Symbolic Math Toolbox dans Help Center et File Exchange

Tags

Produits


Version

R2015a

Community Treasure Hunt

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

Start Hunting!

Translated by