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- From: kjell@sccm.Stanford.EDU (Kjell Gustafsson)
- Subject: Re: Automatic Time Step for an ODE
- In-Reply-To: engrand@clt13vf.der.edf.fr's message of 5 Nov 92 11:05:34 GMT
- Message-ID: <KJELL.92Nov6120116@sccm.Stanford.EDU>
- Sender: news@CSD-NewsHost.Stanford.EDU
- Organization: Computer Science Department, Stanford University, Ca , USA
- References: <1992Nov5.110534.15386@edf.fr>
- Date: 6 Nov 92 12:01:16
- Lines: 36
-
- In article <1992Nov5.110534.15386@edf.fr> engrand@clt13vf.der.edf.fr writes:
- >
- >I'm studying different methods to automatically change the size of a time step
- >when solving a time-dependant ODE. Automatically means that the code should
- >know when it has to use a larger or smaller time step,
- >according to what happens to the sytem.
- >
- >I haven't heard on any book dealing with this problem (but I haven't looked
- >very hard) ; is there any ?
-
- I've studied this problem in my thesis "Control of Error and
- Convergence in ODE Solvers", Kjell Gustafsson, Department of Automatic
- Control, Lund Institute of Technology, Sweden, 1992". It turns out
- that with some ideas from feedback control you can get a better
- understanding of the stepsize adjustment problem and also design
- improved algorithms.
-
- Part of the material (the one concerning explicit methods) is
- published in ACM TOMS: "Control Theoretic Techniques for Stepsize
- Selection in Explicit Runge-Kutta Methods", Kjell Gustafsson, 17:4,
- 1991, pp. 533-554.
-
- Kjell
-
- -------------------------------------------------------------------------------
- mail: Kjell Gustafsson, Department of Computer Science MJH309
- Stanford University, Stanford CA 94305, USA
- e-mail: kjell@sccm.stanford.edu
- phone: (415) 723-4269 (voice), (415) 723-2411 (fax)
-
- --
- -------------------------------------------------------------------------------
- mail: Kjell Gustafsson, Department of Computer Science MJH309
- Stanford University, Stanford CA 94305, USA
- e-mail: kjell@sccm.stanford.edu
- phone: (415) 723-4269 (voice), (415) 723-2411 (fax)
-