Does ode45 allow symbolic variables in its ode definition?
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Jan
on 22 Jul 2011
Inside the ODE function you can do what ever you want, as long as the output is numerical and has a certain degree of smoothness.
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Jan
on 23 Jul 2011
@Weiwei: It sound feasible. This is actually a standard parameter estimation of a boundary value problem on the subintervals. So start with a good coice of a,b,c, calculate the ODE and find better a,b,c by a variation or the evaluation of the sensitivity matrix. If your trajectories explode if a,b,c are far apart from the solution, use a multiple shooting method. The objective of your parameter estimation is than the distance between your trajectory from all mesaurements *and* the steps at each measurement point.
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