MathGroup Archive 2003

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Using error message output

  • To: mathgroup at smc.vnet.net
  • Subject: [mg43400] Using error message output
  • From: Eric Peterson <ericp at lanl.gov>
  • Date: Tue, 16 Sep 2003 04:35:50 -0400 (EDT)
  • Sender: owner-wri-mathgroup at wolfram.com

I am using NDSolve and sometimes the integrator hits a snag as it's
calculating.  I'll get an error message like:

NDSolve::ndsz :
 At t == 4.198615826788436`, step size is effectively zero; singularity or
stiff system suspected.

Now as it turns out that's just fine; by the time the integrator fails I
have all the results I need.  But I would really like to be able to extract
the value of the variable t at which the integrator stopped so that I can
use it when I plot the results.

I'd rather not kluge something in to parse it out of the error message.  Is
there an elegant way to do this?

Eric


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