system of equations



On Wed, Aug 13, 2008 at 12:58 PM, Adam Majewski <adammaj1 at o2.pl> wrote:
> I have removed one error in my equation , upgraded maxima to last version,
> used  topoly_solver and here it is...
> load(topoly_solver)$
> eq1:z=z^4+2*c*z^2+c^2+c$
> eq2:(4*z^3+4*c*z)=1$
> to_poly_solve([eq1, eq2], [z, c]);
> (%o28) [[z=1/2,c=1/4],[z=-1/2,c=-3/4]]

Though it does no harm (and is a great package for when it is needed),
you don't need to_poly_solve for these equations, which with the
removal of the 'abs' are purely algebraic; solve or algsys will do
fine.

               -s