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

**Follow-Ups**:**Re: Re: Re: NIntegrate and NDSolve***From:*Chris Chiasson <chris.chiasson@gmail.com>

**References**:**Re: NIntegrate and NDSolve***From:*"Carl K. Woll" <carlw@u.washington.edu>