Revision history [back]

Something like that:

sage: f.map_coefficients(lambda p:p.polynomial().coefficients()[0])
3*e1*e2 + 4*e2^2 - 4*e1 + 3
sage: f.map_coefficients(lambda p:p.polynomial().coefficients()[1])
-4*e1*e2 + 2*e2^2 + 2*e1 - 5