Python canonical_representation Exemples

Exemple #1

Fichier : test_risch.py Projet : ChaliZhg/sympy

def test_canonical_representation():
    DE = DifferentialExtension(extension={'D': [Poly(1, x), Poly(1 + t**2, t)]})
    assert canonical_representation(Poly(x - t, t), Poly(t**2, t), DE) == \
        (Poly(0, t), (Poly(0, t),
        Poly(1, t)), (Poly(-t + x, t),
        Poly(t**2, t)))
    DE = DifferentialExtension(extension={'D': [Poly(1, x), Poly(t**2 + 1, t)]})
    assert canonical_representation(Poly(t**5 + t**3 + x**2*t + 1, t),
    Poly((t**2 + 1)**3, t), DE) == \
        (Poly(0, t), (Poly(t**5 + t**3 + x**2*t + 1, t),
        Poly(t**6 + 3*t**4 + 3*t**2 + 1, t)), (Poly(0, t), Poly(1, t)))

Exemple #2

Fichier : test_risch.py Projet : ndfcampbell/sympy

def test_canonical_representation():
    DE = DifferentialExtension(extension={'D': [Poly(1, x), Poly(1 + t**2, t)]})
    assert canonical_representation(Poly(x - t, t), Poly(t**2, t), DE) == \
        (Poly(0, t), (Poly(0, t),
        Poly(1, t)), (Poly(-t + x, t),
        Poly(t**2, t)))
    DE = DifferentialExtension(extension={'D': [Poly(1, x), Poly(t**2 + 1, t)]})
    assert canonical_representation(Poly(t**5 + t**3 + x**2*t + 1, t),
    Poly((t**2 + 1)**3, t), DE) == \
        (Poly(0, t), (Poly(t**5 + t**3 + x**2*t + 1, t),
        Poly(t**6 + 3*t**4 + 3*t**2 + 1, t)), (Poly(0, t), Poly(1, t)))