NDSolve: X D[f[X,Z],X] - D[f[X,Z],Z,Z] == 0
- To: mathgroup at smc.vnet.net
- Subject: [mg8196] NDSolve: X D[f[X,Z],X] - D[f[X,Z],Z,Z] == 0
- From: Michael Bunk <michael at iatfrisc2.fzk.de>
- Date: Mon, 18 Aug 1997 23:24:45 -0400
- Organization: Forschungszentrum Karlsruhe
- Sender: owner-wri-mathgroup at wolfram.com
I have tried to solve the problem:
X D[f[X,Z],X] - D[f[X,Z],Z,Z] == 0
with
f[X,0] == 0
Derivative[0,1][f][X,1] == 0,
f[1,Z] == Sin[Z Pi/2]
f,{X,1,5},{Z,0,1}
but MATHEMATICA 3.0 says:
The right-hand side of the differential equation does not evaluate to a
number at X==1.
What's wrong with my formulation?
--
Michael Bunk
Forschungszentrum Karlsruhe
Institut fuer Angewandte Thermo- und Fluiddynamik
Postfach 3640
D-76021 Karlsruhe
Tel.: 07247/82-2528