> From: N.A.Beishuizen at ctw.utwente.nl
>
> Is somebody still working on the contrib_ode code?
When I get some time ;-(
All I have done in the last year or so is integrate
Barton Willis's odelin routine and keep the testsuite
up to date. I don't have any code under development.
Contributions gratefully accepted.
> My programming goal is to have a small program that solves
> nonlinear ode's of nth order and systems of nonlinear ode's
> based on point symmetry methods.
> I noticed that contrib_ode already has a Lie symmetry method
> implemented for first order ode's, so maybe somebody else is
> also working on this?
Partially implemented is closer to the truth. The Lie symmetry
method is powerful,but my maxima implementation has weaknesses.
There are plenty of tests commented out in the contrib_ode testsuite.
If you read the references by Cheb Terrab you will see that the
same algorithm gives better results in Maple.
David
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