# Additional Inputs PDE Toolbox f coefficient

2 Ansichten (letzte 30 Tage)
Bearbeitet: ADSW121365 am 22 Apr. 2020
My code below is generating some sort of error, however I'm not sure the error message is consistent with the problem which is actually occuring. The aim is to input additional parameters to the f-coefficient in the PDEToolbox:
function f = f_coeffunction_3v(location,~,N_w,mag)
N = 3; % Number of equations
nr = length(location.x); % Number of columns
f = zeros(N,nr); % Allocate f
jo = N_w.*mag ./ 2; %Current Density Magnitude
f(1,Quad == 1) = jo; f(2,Quad == 1) = 0 ; f(3,Quad == 1) = 0 ;
f(1,Quad == 2) = 0 ; f(2,Quad == 2) = jo; f(3,Quad == 2) = 0 ;
end
N_w = 4; mag = 1;
f_fun = @(location,state)f_coeffunction_3v(location,state,N_w,mag); %Assign handle with correct functional form
f_vals = f_fun(location,[]); %Test values - identical to those from _2v.
specifyCoefficients(model,'m',0,'d',0,'c',c_coeff,'a',0,'f',@f_fun,'Cell',1);
Error using pde.CoefficientAssignment/checkCoefFcnHdlArgCounts (line 499)
Function specifying a coefficient must accept two
input arguments and return one output argument.
##### 0 Kommentare-2 ältere Kommentare anzeigen-2 ältere Kommentare ausblenden

Melden Sie sich an, um zu kommentieren.

### Akzeptierte Antwort

Ravi Kumar am 4 Mär. 2020
Change to:
specifyCoefficients(model,'m',0,'d',0,'c',c_coeff,'a',0,'f',f_fun,'Cell',1);
Remove the @ symbol in front of f_fun, because you already created f_fun as function_handle when you defined it.
Regards,
Ravi
##### 1 Kommentar-1 ältere Kommentare anzeigen-1 ältere Kommentare ausblenden
I knew it was something dumb! Thanks.

Melden Sie sich an, um zu kommentieren.

### Kategorien

Mehr zu Eigenvalue Problems finden Sie in Help Center und File Exchange

R2019b

### Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by