From: Tuomo Keskitalo <Tuomo.Keskitalo@iki.fi>
To: GSL Discuss Mailing List <gsl-discuss@sourceware.org>
Subject: ode-initval implicit solvers and development
Date: Tue, 30 Sep 2008 17:07:00 -0000 [thread overview]
Message-ID: <48E25CA9.6080306@iki.fi> (raw)
Hello,
my work with GSL ODE solvers is progressing (slowly, I am doing this on
my own free time). I've written a modified Newton iteration method to
solve the non-linear equation system that come up with implicit
Runge-Kutta methods. Three very basic implicit solvers included use the
solver. Also, I've made some changes and additions to ode-initval tests.
Those are the highlights. The current work on gsl-1.11/ode-initval
directory can be found here:
http://iki.fi/tuomo.keskitalo/temp/gsl-1.11-ode-initval-additions-1.tar.gz
Please note the comments on file Changes.txt. Any comments you might
have are welcome!
Fifth order implicit Radau method would be nice to add maybe later on
(even these new implicit solvers do not seem to be able to cope with
highly stiff, badly scaled problems), but I think that I will continue
next with a multistep framework and some of the methods in e.g. the VODE
package. More tests are also in the queue.
Regards,
Tuomo
--
Tuomo.Keskitalo@iki.fi
http://iki.fi/tuomo.keskitalo
next reply other threads:[~2008-09-30 17:07 UTC|newest]
Thread overview: 64+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-09-30 17:07 Tuomo Keskitalo [this message]
2008-10-01 18:29 ` Brian Gough
2008-10-09 13:22 ` Brian Gough
2008-11-02 17:35 ` Tuomo Keskitalo
2008-11-03 18:09 ` Brian Gough
2009-01-24 11:52 ` Tuomo Keskitalo
2009-02-01 17:01 ` Brian Gough
2009-02-02 17:05 ` Tuomo Keskitalo
2009-03-01 14:37 ` Tuomo Keskitalo
2009-03-03 16:34 ` Brian Gough
2009-03-05 19:47 ` Tuomo Keskitalo
2009-03-05 19:54 ` Heikki Orsila
2009-03-06 20:03 ` Brian Gough
2009-04-05 12:28 ` Tuomo Keskitalo
2009-05-01 14:05 ` Tuomo Keskitalo
2009-05-04 11:23 ` Brian Gough
2009-05-08 10:51 ` Brian Gough
2009-08-06 13:51 ` GSL 2.0 roadmap Tuomo Keskitalo
2009-08-21 20:42 ` Brian Gough
2009-08-27 11:42 ` Tuomo Keskitalo
2009-08-27 12:51 ` Robert G. Brown
2009-08-28 13:57 ` Jordi Burguet Castell
2009-08-27 17:13 ` Robert G. Brown
2009-08-28 13:58 ` Brian Gough
2009-08-27 23:10 ` Gerard Jungman
2009-08-27 23:13 ` GSL 2.0 roadmap (one man's view) Gerard Jungman
2009-08-28 13:58 ` Brian Gough
2009-09-16 0:43 ` Gerard Jungman
2009-09-03 19:37 ` Brian Gough
2009-09-16 0:44 ` Gerard Jungman
2009-09-07 15:10 ` Brian Gough
2009-09-16 0:45 ` Gerard Jungman
2009-09-20 9:36 ` Tuomo Keskitalo
2009-09-20 13:23 ` Robert G. Brown
2009-09-20 15:31 ` Rhys Ulerich
2009-09-20 16:19 ` Robert G. Brown
2009-09-21 15:13 ` Brian Gough
2009-09-20 15:08 ` Rhys Ulerich
2009-09-21 12:08 ` Brian Gough
2009-09-07 15:10 ` Brian Gough
2009-09-07 15:34 ` Rhys Ulerich
2009-09-07 18:21 ` Robert G. Brown
2009-09-16 0:47 ` Gerard Jungman
2009-09-18 3:51 ` column-major Z F
2009-09-21 12:08 ` column-major Brian Gough
2009-09-07 15:10 ` GSL 2.0 roadmap (one man's view) Brian Gough
2009-09-16 0:44 ` Gerard Jungman
2009-09-17 20:12 ` Brian Gough
[not found] ` <645d17210909090818u474f32f0q19a6334578b9f02c@mail.gmail.com>
2009-09-17 19:14 ` Brian Gough
2009-09-07 15:10 ` Brian Gough
2009-09-16 0:46 ` Gerard Jungman
2009-09-17 20:12 ` Brian Gough
2009-09-07 15:10 ` Brian Gough
2009-09-16 0:47 ` Gerard Jungman
2009-09-27 8:03 ` new double precision data structure? Tuomo Keskitalo
2009-09-28 8:44 ` James Bergstra
2009-09-28 15:48 ` Tuomo Keskitalo
2009-10-16 13:59 ` Brian Gough
2009-09-29 18:38 ` Gerard Jungman
2009-09-07 15:10 ` GSL 2.0 roadmap (one man's view) Brian Gough
2009-09-16 0:46 ` Gerard Jungman
2009-09-16 2:48 ` Robert G. Brown
2009-09-17 19:14 ` Brian Gough
2009-08-28 13:58 ` GSL 2.0 roadmap Brian Gough
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