definitions in a script must appear at the end of the file.

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Imene Yed
Imene Yed on 29 May 2021
Commented: Imene Yed on 29 May 2021
Hi
function dndt=imene2022(t,n,)
dndt=zeros(43,1)
%Chemin C
dndt(1)= k1*n(2)*n(32)+k15*n(5)*n(9)+k16*n(5)*n(24)...
+k33*n(4)*n(11)+k40*n(7)*n(25)...
+k72*n(2)*n(22)+k104*n(3)*n(5)+k105*n(3)*n(8)+k106*n(3)*n(23)...
+k117*n(16)*n(2)+k119*n(3)*n(33)+k122*n(11)*n(33)+k124*n(13)*n(33)...
+k130*n(20)*n(33)...
-k10*n(1)*n(22)-k13*n(1)*n(20)...
-k61*n(2)*n(1)...
-k68*n(1)*n(1)-k73*n(1)*n(25)...
-k74*n(1)*n(11)-k75*n(1)*n(21)-k76*n(1)*n(19)-k77*n(1)*n(17)...
-k118*n(1)*n(33)-k136*n(1)*n(3)...
-k139*n(1)*n(6);
%Chemin C+
dndt(2)= -k1*n(2)*n(32)-k5*n(2)*n(15)-k6*n(2)*n(27)...
-k61*n(2)*n(1)-k72*n(2)*n(22)...
-k117*n(16)*n(2)+k45*n(7)*n(11)+k73*n(1)*n(25)...
+k74*n(1)*n(11)+k75*n(1)*n(21)+k76*n(1)*n(19)...
+k77*n(1)*n(17)+k118*n(1)*n(33)+k122*n(11)*n(33);
%Chemin C-
dndt(3)= -k14*n(3)*n(22)-k104*n(3)*n(5)...
-k105*n(3)*n(8)-k106*n(3)*n(23)-k119*n(3)*n(33)...
-k136*n(1)*n(3)-k140*n(3)*n(4)-k141*n(3)*n(15)-k142*n(3)*n(7);
%Chemin O:
dndt(4)= k2*n(5)*n(32)+k10*n(1)*n(22)+k13*n(1)*n(20)...
+k14*n(3)*n(22)+k35*n(7)*n(15)+k36*n(7)*n(17)...
+k52*n(15)*n(22)...
+k53*n(15)*n(18)...
+k78*n(5)*n(9)+k80*n(5)*n(27)...
+k81*n(5)*n(15)+k85*n(6)*n(24)...
+k104*n(3)*n(5)+2*k107*n(5)*n(6)+k108*n(5)*n(16)...
+k109*n(6)*n(8)+k120*n(6)*n(33)+2*k126*n(15)*n(33)...
+k128*n(17)*n(33)+k130*n(20)*n(33)+k131*n(22)*n(33)...
-k21*n(4)*n(27)-k22*n(4)*n(27)-k23*n(4)*n(18)...
-k30*n(4)*n(19)-k31*n(4)*n(14)...
-k33*n(4)*n(11)...
-k82*n(4)*n(19)-k83*n(4)*n(21)...
-k133*n(4)*n(32)-k140*n(3)*n(4)-k143*n(4)*n(6);
%Chemin O+:
dndt(5)= k5*n(2)*n(15)+k34*n(8)*n(15)+k82*n(4)*n(19)...
+k83*n(4)*n(21)+k128*n(17)*n(33)...
-k21*n(4)*n(27)-k22*n(4)*n(27)...
-k23*n(4)*n(18)...
-k30*n(4)*n(19)-k31*n(4)*n(14)...
-k33*n(4)*n(11)...
-k82*n(4)*n(19)...
-k83*n(4)*n(21)-k133*n(4)*n(32)-k140*n(3)*n(4)...
-k143*n(4)*n(6);
%Chemin O-:
dndt(6)= k133*n(4)*n(32)...
........
...........
end
%constantes::
%temperature
T=17000
%constante k: recombinaison radiative
k1=2.36 *(1e-12)*(T/300)^(-0.29)*exp(17.60/T)
k2 =3.24 *(1e-12) *(T/300)^(-0.66)
k3=3.50 *(1e-12)*(T/300)^(-0.53)* exp(3.20/T)....
........
%initial
IC=10^19*ones(1,43)
[t,n]=ode45(@imene2021,[0 1e-3],IC)
plot(t,n)
end
Error: File: imene2022.m Line: 212 Column: 1
Function definitions in a script must appear at the end of the file.
Move all statements after the "imene2022" function definition to before the first local function definition.

Answers (1)

Scott MacKenzie
Scott MacKenzie on 29 May 2021
Functions defined in a script (such as imeme2022 in your script) must be positioned at the end of the script. The error message is clear enough. So, reposition these statements...
%constantes::
%temperature
T=17000
%constante k: recombinaison radiative
k1=2.36 *(1e-12)*(T/300)^(-0.29)*exp(17.60/T)
k2 =3.24 *(1e-12) *(T/300)^(-0.66)
k3=3.50 *(1e-12)*(T/300)^(-0.53)* exp(3.20/T)....
........
%initial
IC=10^19*ones(1,43)
[t,n]=ode45(@imene2021,[0 1e-3],IC)
plot(t,n)
end
above the function definition. BTW, the last line above is a dangling end statement and should be removed.
  1 Comment
Imene Yed
Imene Yed on 29 May 2021
So I have to put my constantes k before function dndt=imene2022(t,n)???
thanks for your answer

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