Hi Thomas:

      I looked up the ?ode.1D. There are so many different methods for
ode.1D. I tried daspk, isodes, isode, among which isodes seems to be the
fastest one. Which method is the preferred one for the first-order upstream
method then?

      Thanks a lot,

Dabing


On Tue, Jul 2, 2013 at 12:00 PM, Thomas Petzoldt <
thomas.petzoldt@tu-dresden.de> wrote:

> Hi Dabing Chen,
>
> thanks for the upate, but please note that ?advection.1D says that:
>
> "When solved dynamically, the euler method should be used, unless the
> first-order upstream method is used."
>
> Thomas P.
>
>
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