Solving odes (restricted 3 body problems)
2 vues (au cours des 30 derniers jours)
Afficher commentaires plus anciens
Aneesa Shahbaz
le 25 Mar 2020
Commenté : Aneesa Shahbaz
le 26 Mar 2020
I have been trying to solve these equations -
d2x dt2 = 2 dy dt + x− M(x + E) r3 E − E(x−M) r3 M
d2y dt2 = −2 dx dt + y− My r3 E − Ey r3 M
z1 = x, z2 = dx dt , z3 = y, and z4 = dy dt
but keep getting these errors:-
Unrecognized function or variable 'rE'.
Error in secodef (line 4) zprime=[z(2);2*z(4)+z(1)-((M*(z(1)+E))/rE^3)-((E*(z(1)-M))/rM^3);z(4);-2*z(2)+z(3)-((M*z(3))/rE^3)-((E*z(3))/rM^3)];
Error in odearguments (line 90) f0 = feval(ode,t0,y0,args{:}); % ODE15I sets args{1} to yp0.
Error in ode45 (line 115) odearguments(FcnHandlesUsed, solver_name, ode, tspan, y0, options, varargin);
Error in trial1 (line 13) [t,z] = ode45(@secodef,tspan,Z);
what do I do?
0 commentaires
Réponse acceptée
Plus de réponses (0)
Voir également
Catégories
En savoir plus sur Interactive Control and Callbacks 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!