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Re: Differential equation with several variables in the
*To*: mathgroup at smc.vnet.net
*Subject*: [mg97183] Re: [mg97127] Differential equation with several variables in the
*From*: DrMajorBob <btreat1 at austin.rr.com>
*Date*: Sat, 7 Mar 2009 02:40:14 -0500 (EST)
*References*: <200903060923.EAA22629@smc.vnet.net>
*Reply-to*: drmajorbob at bigfoot.com
Show us the function and the code that fails.
Otherwise, we're forced to guess what you've done.
Bobby
On Fri, 06 Mar 2009 03:23:05 -0600, <petterbe at gmail.com> wrote:
> Hi,
> I have a differential equation were the function F[.] depends on
> several varibles,x,y,z. I would like to solve the differential
> equation for the entire function. However, I only manage to get
> solutions from Mathematica if I have one variable in the function. For
> example DSolve[egn==0, F[x],x]. If i try to solve for my entire
> function F[x+y+z] using DSolve[egn==0, F[x+y+z],x] or even just add 1
> to the function (F[x+1]) I get the error message "DSolve::litarg: To
> avoid possible ambiguity, the arguments of the dependent variable in
> XXX should literally match the independent variables."
>
> Does anybody have some good suggestions?
> Thanks
>
--
DrMajorBob at bigfoot.com
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