[Fwd: RE: Contributed code, etc. (was [Maxima] Teaching differentialequations with Maxima)]
Subject: [Fwd: RE: Contributed code, etc. (was [Maxima] Teaching differentialequations with Maxima)]
From: Wolfgang Jenkner
Date: 24 Feb 2003 22:00:20 +0100
James Amundson <amundson@fnal.gov> writes:
> -----Forwarded Message-----
>
> From: CRTS" <David.Billinghurst at riotinto>
> To: James Amundson <amundson@fnal.gov>, Maxima List <maxima@www.ma.utexas.edu>
> I have been working on some maxima first order ODE routines using the
> approach in the papers below, and Zimmerman's handbook. I have "working"
> routines for Clairault, Lagrange and Riccati equations and have made
> limited progress on Lie group methods.
Great!
If nobody is already working on this (or planning to do so) I'd like
to (re)implement the series package (of which we do have a description
in archive/share/unknown/series.usg). Whittaker & Watson has a nice
explanation of the method in chapter 10.
As for the Lie group methods please take a look at
ftp://ftp.mines.colorado.edu/pub/papers/math_cs_dept/software/symmetry
They make it freely available for scientific use. Perhaps it doesn't
need much effort to make it run in Maxima.
Wolfgang