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- From: jonathan@chpc.utexas.edu (Jonathan Thornburg)
- Newsgroups: sci.math.num-analysis
- Subject: Re: predictor corrector methods for ODE's
- Summary: PC methods are *not* obselete, many *excellent* codes use them
- Keywords: predictor corrector ODE integrate LSODE Hindmarsh DE/STEP Shampine Gordon
- Message-ID: <1992Aug26.184246.11311@chpc.utexas.edu>
- Date: 26 Aug 92 18:42:46 GMT
- References: <26AUG199218380252@robin.rp.csiro.au>
- Sender: jonathan@einstein.ph.utexas.edu
- Organization: U of Texas at Austin / Physics Dept / Center for Relativity
- Lines: 31
-
- In article <26AUG199218380252@robin.rp.csiro.au>
- awhichel@robin.rp.csiro.au (Adrian Whichello) writes:
- > I just read in Numerical Recipes that predictor-corrector methods for
- >solving initial value ODE's are dead, or at least on their way out. This
- >strikes me as rather strong, but I would like some other opinions. What do you
- >think?
-
- Numerical Recipes is (very) wrong here. Predictor-Corrector (PC)
- methods for non-stiff initial value ODE integration are alive and
- well. ODE experts (which I'm not) recommend them as being robust
- and efficient for a wide range of problems. See, for example, the
- review and discussion in:
- \mybibitem{Gear, C. W.}{1981}
- ``Numerical Solution of Ordinary Differential Equations:
- Is There Anything Left to Do?''
- SIAM Review {\bf 23}(1), 10--24.
-
- Indeed, of the current high quality "black box" ODE codes, a large
- fraction use PC methods. Notable examples include Hindmarsh's LSODE
- suite, and the Shampine & Gordon DE/STEP package.
-
- PC methods are also "culturally similar" to the backwards
- differentiation multistep methods which seem to be the current
- favorites for stiff ODEs, which makes it easier to combine both in
- a single general purpose code or code suite. (For example, LSODE
- does this.)
-
- - Jonathan Thornburg
- <jonathan@einstein.ph.utexas.edu> or <jonathan@hermes.chpc.utexas.edu>
- University of Texas at Austin / Physics Dept / Center for Relativity
- and (for a few more months) U of British Columbia / {Astronomy,Physics}
-