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Math Forum » Discussions » Software » comp.soft-sys.matlab

Topic: How to retrieve a parameter inside ode solver?
Replies: 2   Last Post: Dec 23, 2012 11:29 AM

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Qiming

Posts: 10
Registered: 12/21/12
How to retrieve a parameter inside ode solver?
Posted: Dec 21, 2012 5:52 PM
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Hi:

My question is how to retrieve a parameter value inside ode solver? Let's take the control system as an example. I write my own ODE function. Within the ODE function, I compute the control inputs as u=-K*x, where x is the system states and K is a constant matrix. x can be solved by calling ode solver, like ode45. But my question is, how can I get "u"?

I know one solution is that after running the ode solver, then I can write a for loop, like:
for i = 1 : length(x)
u(i) = -K*x(i);
end

Is there any way that I can retrieve u without using the for loop after running ode solver?

Thanks.

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