Input arguments error on line 2

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Rishabh Arora
Rishabh Arora 2020-10-21
编辑： Rishabh Arora 2020-10-21
I am getting input arguments error on line 2 of the function
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显示 1更早的评论
Ameer Hamza
Ameer Hamza 2020-10-21
Why are you calling ode45 inside the ODEfun and using ODEfun as a function handle. This will not work and cause infinite recursion.

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采纳的回答

Stephan
Stephan 2020-10-21
编辑：Stephan 2020-10-21
Divide your code into a function for your ode and the part for solving and plottting the results:
y0 = 0; % --> change to 1 for example to get a "non boring" solution
Wspan = [0 100];
[z, fb] = ode45(@ODEfun, Wspan, y0);
plot(z, fb(:,1));
function dYfuncvecdW = ODEfun(~, Yfuncvec)
X = Yfuncvec(1);
k = 6;
Cao = 0.2;
yao = 1/3;
Fao = 2;
% Pao = 10; --> Value is not used
epsilon = yao*(1-2-1);
ThetaB = 2;
% alpha = 0.02; --> Value is not used
Ca = Cao*(1-X)/(1+(epsilon*X));
Cb = Cao*(ThetaB-(2*X))/(1+(epsilon*X));
ra = -k*Ca*Cb^2;
dXdW = -(ra/Fao);
dYfuncvecdW = dXdW;
end

更多回答（1 个）

Ameer Hamza
Ameer Hamza 2020-10-21
How are you running this function? You need to pass input aguments to get an output
out = ODEfun(0, 1)

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