Re: nested roots

From: Carl Devore (devore_at_math.udel.edu)
Date: 12/21/04 

Date: Tue, 21 Dec 2004 18:46:40 -0500

On 21 Dec 2004, Phidippus wrote:
> Carl Devore wrote:
> > Why do you say that it is too complicated? Are you getting an error
> > message?
>
> It never finishes computing after several hours and also the
> application shutsdown by itself after some point.
>
> > Each RootOf in the above expression represents the two solutions of a
> > quadratic equation.
>
> This is sad because I have billions of combinations...

Well, do you want the identical RootOf's to be independent or not? The
usual situation is that they are dependent, which reduces the number of
solutions.

> > You could just use Maple's fsolve command for that.
>
> Hm... I feel this is exactly what I want, but this did not work. The
> expressions inside my RootOf has many many exponential functions and
> the highest order is _Z^4 [i think]. When I used evala(Norm(x-mine)), I
> was still left with lots of RootOf expressions. Is there any way to get
> around this?

I think you better show me the work***. You just need to show the
commands the generate the output -- you do not need to show the output
itself.