Hi, i have given a Polynominal with a=((1.0*x + 1.0)*(x + 9.0)*(x + 81.0)*(x + 729.0))/((3.0*x + 1.0)*(3.0*x + 9.0)*(3.0*x + 81.0)*(3.0*x + 729.0))
with the code >>> a=((1.0*x + 1.0)*(x + 9.0)*(x + 81.0)*(x + 729.0))/((3.0*x + 1.0)*(3.0*x + 9.0)*(3.0*x + 81.0)*(3.0*x + 729.0)) >>> temp = sp.apart(a) >>> print temp 0.0123456790123457 + 0.728907627865961/(3.0*x + 1.0) + 4.37544642857143/(1.0*x + 243.0) + 1.584375/(1.0*x + 27.0) + 0.546180555555556/(1.0*x + 3.0) >>> , i get the solution of the partial fraction decomposition. All I want now is to extract the poles and the coefficients. I tryed for 3 hours to transform it into a real polynominal expression with sympy.Poly([a],x), but all went wrong. How can I do this an can I than extract the coefficients with sympy.Poly.coeff ??? Thanks for help Hans-Martin Also other solutions are very welcome -- You received this message because you are subscribed to the Google Groups "sympy" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/sympy. For more options, visit https://groups.google.com/groups/opt_out.
