Hi Jorge,
On 5/26/07, Jorge Barros de Abreu <ficmatin01 at solar.com.br> wrote:
> Hi for all.
>
> I have two equivalent equations:
>
> eq:T=2*%pi*r/((MP+ME)*sqrt(G/(r*MP+r*ME)));
> eq1:T=2*%pi*sqrt(r^3/(G*(MP+ME)));
>
> The question is:
>
> How to make (in maxima) to begining in "eq" finish in "eq1"?
I think you need rootscontract(radcan(eq));.
HTH,
--
Andrej