Re: Nonlinear diff equation help
- To: mathgroup at smc.vnet.net
- Subject: [mg51637] Re: Nonlinear diff equation help
- From: Kevin <kmccann at umbc.edu>
- Date: Wed, 27 Oct 2004 23:42:41 -0400 (EDT)
- Organization: University of Maryland, Baltimore County
- References: <clneui$od4$1@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
This is difficult to answer without numerical values for A,B,C,D Dimitris wrote: > Hi, > > I have a nonlinear equation: > > -A + B y[x]^-1 + C y'[x] + D y''[x]=0 > > with boundary conditions: > > y[inf]=B > y'[inf]0; > > Trying to solve with NDSolve from x=0 to x=100 and get (300=infinity): > > NDSolve::ndnum: Encountered non-numerical value for a derivative at x > == \ > 300.`. > > Any ideas? > > Thanks > Dimitris >