Not enough input arguments
1 vue (au cours des 30 derniers jours)
Afficher commentaires plus anciens
can anyone help me with this error?
Error in diva (line 25) Not enough input arguments.
function divF=diva(F,coords)
%find the analytical divergence of a given symbolic 3D vector function F
% coords = 'car'/'cyl'/'sph'
% Copyleft: Won Y. Yang, wyyang53@hanmail.net, CAU for academic use only
if nargin<2, coords='ca'; end
% Cartesian coordinate system by default switch lower(coords(1:2))
% Depending on which coordinate system to use
% Depending on which coordinate system to use
switch lower(coords(1:2))
case 'cy'
syms r ph z;
coord = 'cylindrical';
divF = diff(r*F(1),r)/r + ...
diff(F(2),ph)/r + ...
diff(F(3),z); %(2.4.4b)
case 'sp'
syms r th ph; coord='spherical';
divF = diff(r^2*F(1),r)/r^2 + ...
diff(F(2)*sin(th),th)/r/sin(th) + ...
diff(F(3),ph)/r/sin(th); %(2.4.4c)
otherwise % coords ='ca'
syms x y z;
coord='Cartesian';
divF = diff(F(1),x) + ...
diff(F(2),y) + ...
diff(F(3),z); %(2.4.4a)
end
if nargout<1
fprintf(['Div(F) in ' coord ' coordinate is']);
pretty(simplify(DivF))
end
0 commentaires
Réponses (1)
Walter Roberson
le 6 Avr 2020
You would get that error if you are passing in a function handle as the first parameter, and the function handle requires more than one parameter.
The code expects that the first parameter is either an array of 3 symbolic expressions, or else that it is a numeric array, or else it is a function handle with one parameter.
0 commentaires
Voir également
Catégories
En savoir plus sur Numbers and Precision 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!