static Polynomial[] remainder(Polynomial s, Polynomial p, Generic t[]) { Polynomial zero = s.valueOf(JsclInteger.valueOf(0)); Generic a[] = Basis.augment(t, s.remainderUpToCoefficient(p).elements()); Variable unk[] = Basis.augmentUnknown(new Variable[] {}, p.elements()); { Variable u = unk[unk.length - 1]; System.arraycopy(unk, 0, unk, 1, unk.length - 1); unk[0] = u; } Generic be[][] = Linearization.compute( Basis.compute(a, unk, Monomial.lexicographic, 0, Basis.DEGREE).elements(), unk); for (int i = 0; i < be.length; i++) { Polynomial r = substitute(p, be[i], unk); try { return new Polynomial[] {zero, r, s.divide(r)}; } catch (NotDivisibleException e) { } } return new Polynomial[] {s, zero, zero}; }
static Polynomial substitute(Polynomial p, Generic a[], Variable unk[]) { Generic s[] = new Generic[] {p.genericValue()}; return p.valueOf( Basis.compute(Basis.augment(a, s), Basis.augmentUnknown(unk, s)).elements()[0]); }