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MathGroup Archive 2004

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Re: how can I solve a transcendantale function?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg48261] Re: how can I solve a transcendantale function?
  • From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
  • Date: Thu, 20 May 2004 04:03:34 -0400 (EDT)
  • Organization: Universitaet Leipzig
  • References: <c8f1df$cvl$1@smc.vnet.net>
  • Reply-to: kuska at informatik.uni-leipzig.de
  • Sender: owner-wri-mathgroup at wolfram.com

Hi,

make a ordinary differential equation,
eqn = Log[1 - ae[t]] + (ae[t]/(1 - ae[t])) == 8*t;
deqn = Solve[D[#, t] & /@ eqn, ae'[t]][[1,1]] /. Rule -> Equal

and use NDSolve[]

Regards
  Jens

aude wrote:
> 
> Hi,
> 
> I can't solve this function:
> 
> Log[1 - æ[t]] + (æ[t]/(1 - æ[t])) == 8*t
> 
> I've tried with Sole, NSolve and Findroot without success.
> 
> Thanks for your help.
> 
> aude.


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