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FormalGroupLaws :: FormalSeries + FormalSeries

FormalSeries + FormalSeries -- addition of formal series

Synopsis

Description

The sum of the formal series is returned.

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
i3 : t = series(x+y+1,2)

o3 = FormalSeries{x + y + 1, 2}

o3 : FormalSeries
i4 : s + t

                   2
o4 = FormalSeries{x  + 2x + 2y + 1, 2}

o4 : FormalSeries