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Re: Non-linear Diff. Equations on MMA ?

• To: mathgroup at smc.vnet.net
• Subject: [mg2108] Re: Non-linear Diff. Equations on MMA ?
• From: Christian.Jost at epc.u-psud.fr (Christian Jost)
• Date: Fri, 29 Sep 1995 01:17:20 -0400
• Organization: Universite Paris-Sud XI

In article <DFLLAD.ID9 at wri.com>, bebuquiu at zedat.fu-berlin.de wrote:

> Hi MMA-Users,
> I am wondering if it is possible to solve non-linear differential
> equations with MMA. I tried to DSolve one like y''(x)=3Da* y(x)^3, which
> leads to elliptic  integrals- MMA says that it cannot handle it with the
> built-in roules. Are they maybe any packages, notebooks available ?- I am
> a MMA-newbie, so do not hesitate to give me simple answers or to tell me
> well-known places. btw: could anybody tell me some good sites to pick
> MMA-packages,-notebooks?

In MMA release 2.2 there is a standard package DSolve (<<Calculus`DSolve`)
which extends the built in capabilities. Maybe this solves your problem.

Christian.

Christian Jost, Universit=E9 Paris-Sud XI, Orsay, France
jost at psisun.u-psud.fr