This constructs an object of the class FormalSeries out of an element of a PolynomialRing and an integer representing the precision.
i1 : R=ZZ[x,y] o1 = R o1 : PolynomialRing |
i2 : s = series(x^2+x+y,2) 2 o2 = FormalSeries{x + x + y, 2} o2 : FormalSeries |
Note that the polynomial is automatically truncated at the precision.
i3 : t = series(x^3+x^2+x+y,2) 2 o3 = FormalSeries{x + x + y, 2} o3 : FormalSeries |