# SageMath code for working with p-adic field 3.4.5.16a1.2. # Define the p-adic field: Prec = 100 # Default precision of 100 Q3 = Qp(3, Prec); x = polygen(QQ) L. = Q3.extension(x^4 + 2*x^3 + 2) K. = L.extension(x^5 + 3) # Defining polynomial: K.defining_polynomial() # Base field Qp: K.base() # Degree over Qp: K.absolute_degree() # Ramification index: K.absolute_e() # Residue field degree (Inertia degree): K.absolute_f() # Maximal unramified subextension: K.maximal_unramified_subextension() # Roots of unity: len(K.roots_of_unity())