i1 : A = ZZ[x] o1 = A o1 : PolynomialRing |
i2 : (lf,cf) = topCoefficients (7*x^4-13*x^3+x+1) 4 o2 = (x , 7) o2 : Sequence |
i3 : v = first support lf o3 = x o3 : A |
i4 : e = first degree lf o4 = 4 |
i5 : B = ZZ[x,y,z] o5 = B o5 : PolynomialRing |
i6 : f = y^4*(3*z^3-z^2-1) - y^3*z^7 + y + z^12 12 3 7 4 3 4 2 4 o6 = z - y z + 3y z - y z - y + y o6 : B |
i7 : (lf,cf) = topCoefficients f 4 3 2 o7 = (y , 3z - z - 1) o7 : Sequence |