Services & Resources / Wolfram Forums
MathGroup Archive
*Archive Index
*Ask about this page
*Print this page
*Give us feedback
*Sign up for the Wolfram Insider

MathGroup Archive 2003

[Date Index] [Thread Index] [Author Index]

Search the Archive

partial differential

  • To: mathgroup at
  • Subject: [mg44763] partial differential
  • From: Uli Wuerfel <uli.wuerfel at>
  • Date: Tue, 25 Nov 2003 00:45:31 -0500 (EST)
  • Organization: Rechenzentrum der Universitaet Freiburg, Germany
  • Sender: owner-wri-mathgroup at

Hi experts,
I have problems with solving stuff like

	 \!\(pd = \[PartialD]\_t\
         n[x, t] == \(-dif\)\ \[PartialD]\_\(x, x\)\ n[x, t] +
         int\ Exp[\(-\[Alpha]\)\ x] - rek\ n[x, t]\)

( where dif, int, alpha and rek are constants )

I tried it via

	\!\(lsg =
     NDSolve[{pd, n[x, 0] == nstart,
         n[0, t] == nstart, \((\[PartialD]\_x\ n[x, t] /. x -> 
thickn)\) 			== 0},
       n, {x, 0, thickn}, {t, 0, 2}]\)

( again nstart and thickn are constants )

but could not make it...

Have any advice??
Thank you,

  • Prev by Date: Interpolation with random nodes
  • Next by Date: Re: Conversion Function -> List
  • Previous by thread: Re: Interpolation with random nodes
  • Next by thread: Re: partial differential