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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
>
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