How to extract the internal time discretization of the solver PDEPE.

 For a give time discretization, How can I extract the internal time discretization of PDEPE?

This is easy with ODE45. But since it is internal to PDEPE, I would like to know if I can still set the internal discretization of the time as an output (i.e. not exactly tspan).

Thanks.

Answer 1

[Torsten]

Use "OutputFcn" in the "options" structure.

"OutputFcn" will then be called after each successful time step.

Best wishes

Torsten.

[assionvi hove kouevi]

Hi,

How can this records(not displays) the successful time step and save it as an output of PDEPE?

For example [sol, t_successful] = pdepe(.....), where t_successful represent all the successful time step of the internal ODE45

Thanks.

[Torsten]

"OutputFcn" is a function that you define and which is called after each successful time step of "pdepe". The actual time is passed to this function. So all you have to do is to save the value of this variable "t" to a file.

Best wishes

Torsten.