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Help with ODE's
- From: Sam Halliday <sam at neutrino dot phy dot uct dot ac dot za>
- To: gsl-discuss at sources dot redhat dot com
- Date: Sat, 27 Apr 2002 17:00:03 +0200
- Subject: Help with ODE's
- Organization: University of Cape Town
Hello there,
i think gsl is a fantastic project, and i've been using it in my simulations
since i found out about it.
i have only ever had to solve 2 ODEs at one time, and i was lucky enough that
the example in the documentation deals with this scenario, however i find the
API of the ODE part of the library to be somewhat cryptic and i am having
problems changing my code to solve for 3 ODEs at one time.. could anyone
please give me some pointers as to how i would do that?
and also, i noticed that to do an 8th order runge-kutta i must declare a
jacobian, could somebody please explain to me how i get this from my
equations? i am aware of jacobians in mathematics, but never heard of it in
numerics, i must admit i am of an analytic background.
thanks in advance!
Sam Halliday
--
If a man had a child who'd gone anti-social, killed perhaps, he'd still
tend to protect that child.
-- McCoy, "The Ultimate Computer", stardate 4731.3