Re: NDSolve and step-size control
- To: mathgroup at smc.vnet.net
- Subject: [mg96412] Re: NDSolve and step-size control
- From: dh <dh at metrohm.com>
- Date: Fri, 13 Feb 2009 03:41:55 -0500 (EST)
- References: <gn11u2$8eo$1@smc.vnet.net>
Hi Virgil,
You can tell NDSolve to use a fixed step size, but I do not know how to
set it to a specific value, besides setting a maximal value
NDSolve has an options "Method" that can take a "controller" with the
value of "FixedStep". E.g.:
eq = {f'[t] == f[t], f[0] == 1};
sol = f /.
NDSolve[eq, f, {t, 0, 0.01},
Method -> {"FixedStep", Method -> "ExplicitEuler"},
EvaluationMonitor :> Print[t]][[1]]
hope this helps, Daniel
Virgil Stokes wrote:
> Is there a way to force the step-size to be fixed when using NDSolve?
> Note, I am using Mathematica 7.0.0.
>
> --V. Stokes
>
>