[GiNaC-list] Polynomial Factoring

Hi GiNaC! I love the library! Keep up the good work! Currently I am trying to find exact eigenvalues. My solution so far is to factor the characteristic equation then I can try to find roots of the factored polynomials. But, I need a list of expressions that store the factored polynomials. For example in the ginsh I have: ```

rat = pow(x,6)+1; 1+x^6 factor(rat); (1+x^4-x^2)*(1+x^2)

Then I need a list with the expressions (1+x^4-x^2) and (1+x^2); from there
I can calculate the roots exactly.

Is this possible? Is there a better way to find exact eigenvalues?

Thanks!
Charles