If I have a equation, suppose x.^2+y.^3-10 ; if I put the values of x and y randomly, Can I find the zeroes of this equation at certain values of x and y ? for example x=3 and y=1, there is zero.
1 vue (au cours des 30 derniers jours)
Afficher commentaires plus anciens
Mahak SINGH CHAUHAN
le 11 Mar 2014
Modifié(e) : Mahak SINGH CHAUHAN
le 27 Sep 2019
If I have a equation, suppose x.^2+y.^3-10 ; if I put the values of x and y randomly, Can I find the zeroes of this equation at certain values of x and y ? for example x=3 and y=1, there is zero. Please help me..
0 commentaires
Réponse acceptée
Plus de réponses (1)
Matt J
le 11 Mar 2014
Modifié(e) : Matt J
le 11 Mar 2014
Given a fixed value of x, you can find one corresponding y at which the expression is zero as follows
x=3;
f=@(y) x.^2+y.^3-10;
y_zero = fzero(f, y_guess);
Although, when f() is a polynomial, as in your example, it would be more efficient to use ROOTS instead of FZERO. Also, ROOTS will find you all solutions y for that x, instead of just one.
Similarly for given y, you can find one associated x as follows
y=1;
f=@(x) x.^2+y.^3-10;
x_zero = fzero(f, x_guess);
Voir également
Catégories
En savoir plus sur Spline Postprocessing 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!