Can you help me ? Indexing error
5 visualizaciones (últimos 30 días)
Mostrar comentarios más antiguos
Nicolas MOUJON
el 28 de Mayo de 2020
Comentada: Nicolas MOUJON
el 29 de Mayo de 2020
Y_beta=Yv;
N_beta=Nv;
Delta_r = [s-Y_beta / u0, 1-Yr / u0; -1*N_beta, s- Nr];
D_beta = [YdeltaR/u0, 1- Yr/u0; NdeltaR, s- Nr];
dr_appro=vpa(det(D_beta) ./ det(Delta_r) , 3);
disp('Beta transfer function:')
disp(dr_appro)
%ROLL DYNAMICS
RDra=vpa(LdeltaA ./ (s .*(s-Lp)) ,3);
disp('Roll angle transfer function:')
disp(RDra)
This is the error I obtained:
Error using sym/subsindex (line 853)
Invalid indexing or function definition. Indexing must follow MATLAB indexing. Function arguments must be symbolic variables, and function body must be sym expression.
Error in sym/subsref (line 898)
R_tilde = builtin('subsref',L_tilde,Idx);
Error in Nicolas_Moujon_new (line 192)
dr_appro=vpa(det(D_beta) ./ det(Delta_r) , 3);
I don't know how to solve it ! I just have seen that it happens few times ago. I tried by myself but unsuccessfully.
Thank you very much in advance for your help !!
Nicolas
Respuesta aceptada
Steven Lord
el 29 de Mayo de 2020
You've defined a variable named det in your code. Because of this you cannot use the det function. Attempting to call det (the function) will instead be interpreted as an attempt to index into det (the variable.)
Rename that variable.
Más respuestas (1)
Ver también
Categorías
Más información sobre Symbolic Variables, Expressions, Functions, and Preferences en Help Center y File Exchange.
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!