Re: NDSolve backward in time
- To: mathgroup at smc.vnet.net
- Subject: [mg109597] Re: NDSolve backward in time
- From: "Kevin J. McCann" <Kevin.McCann at umbc.edu>
- Date: Fri, 7 May 2010 06:30:11 -0400 (EDT)
- References: <hrtvse$s6q$1@smc.vnet.net>
Hi Bruno,
I use NDSolve in the "backwards" direction for quantum mechanical
scattering. Just do NDSolve as usual, i.e. {t,-10,10}, for example, but
specify the initial conditions at the right-hand end.
I have a notebook on QM scattering I can send you if you are interested.
Kevin
Bruno Silva wrote:
> Hi,
>
> It is a common strategy to integrate an ode with time flowing in the
> opposite direction, to get an idea of possible unstable equilibria.
> Does anyone know how to ask NDSolve to integrate "backward" in time?
>
> Thanks,
> Bruno