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RealRoots :: SylvesterSequence(RingElement,RingElement)

SylvesterSequence(RingElement,RingElement)

Synopsis

Description

This computes the Sylvester sequence of two univariate polynomials f and g in the same ring

i1 : R = QQ[t]

o1 = R

o1 : PolynomialRing
i2 : f = (t+1)*(t+2)

      2
o2 = t  + 3t + 2

o2 : R
i3 : g = (t+2)

o3 = t + 2

o3 : R
i4 : SylvesterSequence(f,g)

o4 = {t + 1, 1, 0}

o4 : List

See also