Re: Fixed Time Step for NDSolve
- To: mathgroup at smc.vnet.net
- Subject: [mg23032] Re: Fixed Time Step for NDSolve
- From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
- Date: Thu, 13 Apr 2000 02:43:21 -0400 (EDT)
- Organization: Universitaet Leipzig
- References: <email@example.com>
- Sender: owner-wri-mathgroup at wolfram.com
probably not. I would not advice to remove the step size control.
Typical a inital value solver with constant steps take more steps
and accumulate more rounding errors than a solver with stepsize control.
You can still use the InterpolationFunction that comes out form
to create a table of data with constant increment.
Or you may have a look into the ProgrammingInMathematica`RungeKutta.m
package that make a constant stepsize integration.
jim_greer at my-deja.com wrote:
> Is there any way to "trick" Mathematica into using a fixed time step
> over an interval of time for NDSolve? I've tried various combinations
> of parameters on step size with no success.
> Jim Greer
> Dept of Engrng Mech
> U.S. Air Force Academy
> Sent via Deja.com http://www.deja.com/
> Before you buy.
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