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FormalGroupLaws :: truncate(FormalSeries,ZZ)

truncate(FormalSeries,ZZ) -- truncate formal series

Synopsis

Description

This function truncates the formal series s at the precision n.

i1 : R=ZZ[x,y]

o1 = R

o1 : PolynomialRing
i2 : s = series(x^7+x^2+x+y,7)

                   7    2
o2 = FormalSeries{x  + x  + x + y, 7}

o2 : FormalSeries
i3 : truncate(s,4)

                   2
o3 = FormalSeries{x  + x + y, 4}

o3 : FormalSeries