Continuous system simulation in Python
pinard at iro.umontreal.ca
Fri Oct 7 14:41:53 CEST 2005
> [...] an ODE integrator would probably want to adaptively select its
> timesteps as opposed to laying out a uniform discretization upfront.
Eons ago, I gave myself such a little beast (but really found in an
Appendix of a book on simulation), which I use since then whenever I
need it, not so often in these days. If you are curious, see:
yet I'm sure there is just plenty of such things, all around.
The above is in C, not in Python. I vaguely remember having once
rewritten the thing in Python, then discarded the result as not fast
enough for the need I then had. If I really needed to use it nowadays,
I'll probably try to quickly link it through Pyrex. Or just look around
a bit for some already made, and maybe better solution. :-)
It is easy and convenient, when writing a mixed discrete and continuous
simulation system, to tie the advancement control of the various active
ODE solvers within the main loop of the discrete event scheduler.
François Pinard http://pinard.progiciels-bpi.ca
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