how to solve third degree polynomial?

20 vues (au cours des 30 derniers jours)
Hamid
Hamid le 26 Nov 2013
Hi, I am graduate, student and want to solve the third order equation: please advise. x^3-0.731x^2-3.64x-125.92=0

Réponses (2)

Wayne King
Wayne King le 26 Nov 2013
Modifié(e) : Wayne King le 26 Nov 2013
C = [1 -0.731 -3.64 -125.92];
roots(C)
  3 commentaires
Image Analyst
Image Analyst le 27 Nov 2013
Funny. When I do it, it says this:
ans =
5.5211 + 0.0000i
-2.3951 + 4.1317i
-2.3951 - 4.1317i
Hamid
Hamid le 27 Nov 2013
Thanks- Wayne, I got it.

Connectez-vous pour commenter.


Ikraan mahamed
Ikraan mahamed le 12 Sep 2020
p = [-2.70889*10^-27 6.86613*10^-20 -1.88905*10^-13 1.96424*10^-6];
r = roots(p)

Catégories

En savoir plus sur Polynomials 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!

Translated by