CyclotomicFactorIndexes -- find indexes of cyclotomic factors of a polynomial |
Syntax |
CyclotomicFactorIndexes(f: RINGELEM): LIST of INT CyclotomicFactors_BeukersSmyth(f: RINGELEM): RECORD CyclotomicFactors(f: RINGELEM): RECORD |
Description |
Example |
/**/ use QQ[z]; /**/ f := (z^2+1)^2 * (z^4+z^2+1); /**/ CyclotomicFactorIndexes(f); [3, 4, 6] /**/ CyclotomicFactors(f); record[RemainingFactor:=1, factors := [z^2+z+1, z^2-z+1, z^2+1], multiplicities := [1, 1, 2]] /**/ CyclotomicFactors_BeukersSmyth(f); record[RemainingFactor:=1, factors := [z^4+z^2+1, z^2+1], multiplicities := [1, 2]] |
See Also |