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backward ODE solving

From: John W. Eaton
Subject: backward ODE solving
Date: Mon, 26 Apr 2004 11:03:10 -0500

On 26-Apr-2004, Ben Diedrich <address@hidden> wrote:

| I haven't tried 'lsode' yet, but I'd prefer to use a solver
| that calculates the output time vector, instead of requiring one ahead
| of time as lsode does.

Why?  The times you specify for lsode are the times for which you want
to see the solution.  Internally, it selects whatever timesteps are
necessary to satisfy the local error tolerances that you specify for
the solution.


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