Mathematica 9 is now available
Services & Resources / Wolfram Forums
-----
 /
MathGroup Archive
2005
*January
*February
*March
*April
*May
*June
*July
*August
*September
*October
*November
*December
*Archive Index
*Ask about this page
*Print this page
*Give us feedback
*Sign up for the Wolfram Insider

MathGroup Archive 2005

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

Search the Archive

Re: Re: NIntegrate and NDSolve

  • To: mathgroup at smc.vnet.net
  • Subject: [mg56567] Re: [mg56542] Re: NIntegrate and NDSolve
  • From: Matt Flax <flatmax at Matt.Flax>
  • Date: Fri, 29 Apr 2005 03:20:22 -0400 (EDT)
  • References: <d4mrmq$1st$1@smc.vnet.net> <200504280640.CAA24692@smc.vnet.net>
  • Reply-to: Matt Flax <flatmax at ieee.org>
  • Sender: owner-wri-mathgroup at wolfram.com

I have now added limits to the equation and have converted as much of 
the equation to constants as possible ... the exact equation is here :
http://mffm.ee.unsw.edu.au/~flatmax/temp_110.gif

I would like to solve for 'sigma[r,theta,z]' ... when the equation is 
set to zero ...
i.e. http://mffm.ee.unsw.edu.au/~flatmax/temp_110.gif == 0

I guess I will have to use boundary values in some way ... is that 
correct ?

Also what method would be used ? NDSolve NIntegrate ???? Something else 
????

thanks
Matt

On Thu, Apr 28, 2005 at 02:40:43AM -0400, Carl K. Woll wrote:
> "Matt Flax" <flatmax at Matt.Flax> wrote in message 
> news:d4mrmq$1st$1 at smc.vnet.net...
> > Hello,
> >
> > I have an equation which depends on the integral and differential
> > of an unknown function f[x,y,z].
> >
> > I would like to solve this equation analytically, however am happy with a
> > numerical solution if that is necessary.
> >
> > The equation contains the unknown (f[x,y,z]) which I would like to solve
> > for and has integrals of differentials like this :
> >
> > Integral [ d f[x,y,z] / dz  , dx]
> > Integral [ d f[x,y,z] / dx  , dz]
> >
> 
> What are the limits of integration?
> 
> [snip]
> 
> Carl Woll 
> 

-- 
http://www.flatmax.org

Public Projects :
http://sourceforge.net/search/?type_of_search=soft&words=mffm


  • Prev by Date: Re: can Mathematica be useful for this?
  • Next by Date: Re: can Mathematica be useful for this?
  • Previous by thread: Re: NIntegrate and NDSolve
  • Next by thread: Re: Re: Re: NIntegrate and NDSolve