How to use ode45 to solve a system with many dimensions?
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Choszit Lee
il 9 Giu 2017
Commentato: Walter Roberson
il 10 Giu 2017
Hi there,
I meet a interesting question——How to simulate a system with 100 dimensions using ode45?
Obviously, it's impossible to write all equations as below:
dx(1)=x(1)*(α(1)-a(1,1)*x(1)-a(1,2)*x(2)...)
dx(2)=x(2)*(α(2)-a(2,1)*x(1)-a(2,2)*x(2)...)
...
dx(100)=x(100)*(α(100)-a(100,1)*x(1)-a(100,2)*x(2)...)
Does there exist any tricks to solve this questions?
Looking forward to any suggestions~
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James Tursa
il 9 Giu 2017
If I understand your equations correctly, simply
dx = x .* (alpha - a*x);
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Walter Roberson
il 10 Giu 2017
An error like that can be caused by using
ode45(MyFunc, .....)
instead of
ode45(@MyFunc, .....)
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