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why do ı receive the error "data must be numeric, datetime, duration, or an array convertible to double". How can I fix it?

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Serra Çiftçi
Serra Çiftçi on 16 Jun 2021
Commented: Rik on 17 Jun 2021
R=8.314;
T=298:10:450
Prxn=1:1:5
for j=1:size(Prxn,2)
syms x
Ka=exp(((46.1)./(R.*T)+0.0993./R));
Kaa=(((2.*x).^2.*(4-2.*x).^2)./((1-x).*(3-3.*x).^3.*(Prxn(j)).^2))-Ka==0;
extent=solve(Kaa,x);
plot(T,extent);
hold on;
end

Accepted Answer

Rik
Rik on 16 Jun 2021
Extent is still a symbolic by the time you try to plot it. You need to convert it to a double. Since you omitted the definition of T we can't test your code.
  2 Comments
Rik
Rik on 17 Jun 2021
I can't tell from your comment if the problem is solved. If so, please consider marking my answer as accepted. If not, feel free to comment with your remaining issues.

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