This was all I could find re. this (and it's for an OLD Mathsoft version of
S-Plus):
http://www.uni-muenster.de/ZIV/Mitarbeiter/BennoSueselbeck/s-html/helpfiles/
ivp.ab.html
Seems like an Initial Value Solver for systems of first order ODEs.
Mike
> -----Original Message-----
> From: s-news-owner@lists.biostat.wustl.edu
> [mailto:s-news-owner@lists.biostat.wustl.edu] On Behalf Of
> Spencer Graves
> Sent: 31 July 2005 02:40
> To: Xao Ping
> Cc: s-plus user list
> Subject: Re: [S] ode solver
>
> What software are you using? I have S-Plus
> Professional Editon 6.2.1, and I am unaware of any ordinary
> differential equation solver in S-Plus.
>
> spencer graves
>
> Xao Ping wrote:
>
> > Dear All:
> > I am trying to make use of argument "restart" in the ordinary
> > differential equations solver "ivp.ab". I need to output
> trajectories,
> > i.e., solutions of the system of ODEs at the sequence of points
> > (t1,t2,...,tN), not just a solution iat the final point.
> The help is
> > pretty scarce in explaining how to use the argument
> restart. Please,
> > help.
> >
> > Another issue related to "ivp.ab" is what exactly is
> included in the
> > output list "other". No information in the help at all.
> >
> > thanks
> >
> > Xao Ping
> > R&R Pharmakinetics
> > Taiwan
> >
> >
> >
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>
> --
> Spencer Graves, PhD
> Senior Development Engineer
> PDF Solutions, Inc.
> 333 West San Carlos Street Suite 700
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