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MathGroup Archive 2004

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Re: Solving

  • To: mathgroup at smc.vnet.net
  • Subject: [mg48438] Re: Solving
  • From: "Peter Pein" <petsie at arcor.de>
  • Date: Sat, 29 May 2004 03:07:05 -0400 (EDT)
  • References: <c8vb0i$4kf$1@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

"Kishore Pillarisetty" <kishore.pillarisetty at SierraAtlantic.com> schrieb im
Newsbeitrag news:c8vb0i$4kf$1 at smc.vnet.net...
>
> Hi,
>
> We are trying to solve the equations as attached with this mail.
>
> 1 )One of our customers has been encountering the problem in Mathematica
4.2
> on windows, Here I am enclosing the math_nd.nb file.
>
> The enclosed Mathematica notebook file "math_nd.nb" lists all the steps we
> followed. All the results are OK except for the last one where the below
> listed error is encountered. Request your help in solving the same.
>
> NDSolve::ndnum:Encountered non-numerical value for a derivative at
> t==2.457555147773575' * 175. Where as {t,0,1}. and not able to generate
> the result Plot.
>
> 2) The last Input problem (in green colour) involves solving 13 equations
> with 5 Lambda parameters)
> The last Input problem (in red colour) involves solving 14 equations with
6
> Lambda parameters). THIS IS WHERE WE ARE FACING THE PROBLEM. Mathematica
> Kernel seems to solve the problem for infinite time but does not provide
any
> solution. We had to manually kill the Kernel to exit from this process.
>
> Request you to suggest a suitable solution. Look forward to your reply at
> the earliest.
>
>
>
> Regards
>
> Kishore
> Product Manager
> Sierra Atlantic Software Services Ltd
> Karthik House, Road No. 14
> Banjara Hills
> Hyderabad 500 034
> India
>
> Ph: +91 40 55745550
>


1.) to assign a value to a variable: don't miss "=" or Set
2.) change all occurence of (Sec^2)[] to Sec[]^2

I don't know if these are all errors, because I don't have got enough memory
on my machine for this problem.

Peter

-- 
Peter Pein, Berlin
to write to me, start the subject with [





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