How to solve a cubic equation using Genetic Algorithms?
14 Ansichten (letzte 30 Tage)
Ältere Kommentare anzeigen
Nick
am 20 Apr. 2021
Kommentiert: Walter Roberson
am 20 Apr. 2021
Hello there,
I want to write a code in matlab that finds a real solution for the equation x^3+x^2+x+7=0 , -5<x<5, using Genetic Algorithms.
How can I implement that with code?
0 Kommentare
Akzeptierte Antwort
Weitere Antworten (1)
Walter Roberson
am 20 Apr. 2021
Bearbeitet: Walter Roberson
am 20 Apr. 2021
f = @(x) x.^4-2*x.^3+3*x.^2+x-4
target = 5;
residue = @(x) (f(x)-target).^2
[bestx, fval] = ga(residue, 1)
roots([1, -2, 3, 1, -4-target])
2 Kommentare
Walter Roberson
am 20 Apr. 2021
One that computed the left hand side of that polynomial, with the target set to the constant that is the right hand side of the equation.
... you are obviously answering homework, so I deliberately showed you how to do it for a different polynomial, so that you would have to do at least minimal study of the technique instead of just copying what I posted.
Siehe auch
Kategorien
Mehr zu Genetic Algorithm finden Sie in Help Center und File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!