Пример #1
0
def test_Monomial():
    m = Monomial((3, 4, 1), (x, y, z))
    n = Monomial((1, 2, 0), (x, y, z))

    assert m.as_expr() == x**3*y**4*z
    assert n.as_expr() == x**1*y**2

    assert m.as_expr(a, b, c) == a**3*b**4*c
    assert n.as_expr(a, b, c) == a**1*b**2

    assert m.exponents == (3, 4, 1)
    assert m.gens == (x, y, z)

    assert n.exponents == (1, 2, 0)
    assert n.gens == (x, y, z)

    assert m == (3, 4, 1)
    assert n != (3, 4, 1)
    assert m != (1, 2, 0)
    assert n == (1, 2, 0)

    assert m[0] == m[-3] == 3
    assert m[1] == m[-2] == 4
    assert m[2] == m[-1] == 1

    assert n[0] == n[-3] == 1
    assert n[1] == n[-2] == 2
    assert n[2] == n[-1] == 0

    assert m[:2] == (3, 4)
    assert n[:2] == (1, 2)

    assert m*n == Monomial((4, 6, 1))
    assert m/n == Monomial((2, 2, 1))

    assert m*(1, 2, 0) == Monomial((4, 6, 1))
    assert m/(1, 2, 0) == Monomial((2, 2, 1))

    assert m.gcd(n) == Monomial((1, 2, 0))
    assert m.lcm(n) == Monomial((3, 4, 1))

    assert m.gcd((1, 2, 0)) == Monomial((1, 2, 0))
    assert m.lcm((1, 2, 0)) == Monomial((3, 4, 1))

    assert m**0 == Monomial((0, 0, 0))
    assert m**1 == m
    assert m**2 == Monomial((6, 8, 2))
    assert m**3 == Monomial((9, 12, 3))

    raises(ExactQuotientFailed, lambda: m/Monomial((5, 2, 0)))
Пример #2
0
def test_Monomial():
    m = Monomial((3, 4, 1), (x, y, z))
    n = Monomial((1, 2, 0), (x, y, z))

    assert m.as_expr() == x**3 * y**4 * z
    assert n.as_expr() == x**1 * y**2

    assert m.as_expr(a, b, c) == a**3 * b**4 * c
    assert n.as_expr(a, b, c) == a**1 * b**2

    assert m.exponents == (3, 4, 1)
    assert m.gens == (x, y, z)

    assert n.exponents == (1, 2, 0)
    assert n.gens == (x, y, z)

    assert m == (3, 4, 1)
    assert n != (3, 4, 1)
    assert m != (1, 2, 0)
    assert n == (1, 2, 0)

    assert m[0] == m[-3] == 3
    assert m[1] == m[-2] == 4
    assert m[2] == m[-1] == 1

    assert n[0] == n[-3] == 1
    assert n[1] == n[-2] == 2
    assert n[2] == n[-1] == 0

    assert m[:2] == (3, 4)
    assert n[:2] == (1, 2)

    assert m * n == Monomial((4, 6, 1))
    assert m / n == Monomial((2, 2, 1))

    assert m * (1, 2, 0) == Monomial((4, 6, 1))
    assert m / (1, 2, 0) == Monomial((2, 2, 1))

    assert m.gcd(n) == Monomial((1, 2, 0))
    assert m.lcm(n) == Monomial((3, 4, 1))

    assert m.gcd((1, 2, 0)) == Monomial((1, 2, 0))
    assert m.lcm((1, 2, 0)) == Monomial((3, 4, 1))

    assert m**0 == Monomial((0, 0, 0))
    assert m**1 == m
    assert m**2 == Monomial((6, 8, 2))
    assert m**3 == Monomial((9, 12, 3))

    raises(ExactQuotientFailed, lambda: m / Monomial((5, 2, 0)))
Пример #3
0
def test_Monomial():
    m = Monomial((3, 4, 1), (x, y, z))
    n = Monomial((1, 2, 0), (x, y, z))

    assert m.as_expr() == x**3 * y**4 * z
    assert n.as_expr() == x**1 * y**2

    assert m.as_expr(a, b, c) == a**3 * b**4 * c
    assert n.as_expr(a, b, c) == a**1 * b**2

    assert m.exponents == (3, 4, 1)
    assert m.gens == (x, y, z)

    assert n.exponents == (1, 2, 0)
    assert n.gens == (x, y, z)

    assert m == (3, 4, 1)
    assert n != (3, 4, 1)
    assert m != (1, 2, 0)
    assert n == (1, 2, 0)
    assert (m == 1) is False

    assert m[0] == m[-3] == 3
    assert m[1] == m[-2] == 4
    assert m[2] == m[-1] == 1

    assert n[0] == n[-3] == 1
    assert n[1] == n[-2] == 2
    assert n[2] == n[-1] == 0

    assert m[:2] == (3, 4)
    assert n[:2] == (1, 2)

    assert m * n == Monomial((4, 6, 1))
    assert m / n == Monomial((2, 2, 1))

    assert m * (1, 2, 0) == Monomial((4, 6, 1))
    assert m / (1, 2, 0) == Monomial((2, 2, 1))

    assert m.gcd(n) == Monomial((1, 2, 0))
    assert m.lcm(n) == Monomial((3, 4, 1))

    assert m.gcd((1, 2, 0)) == Monomial((1, 2, 0))
    assert m.lcm((1, 2, 0)) == Monomial((3, 4, 1))

    assert m**0 == Monomial((0, 0, 0))
    assert m**1 == m
    assert m**2 == Monomial((6, 8, 2))
    assert m**3 == Monomial((9, 12, 3))

    raises(ExactQuotientFailed, lambda: m / Monomial((5, 2, 0)))

    mm = Monomial((1, 2, 3))
    raises(ValueError, lambda: mm.as_expr())
    assert str(mm) == 'Monomial((1, 2, 3))'
    assert str(m) == 'x**3*y**4*z**1'
    raises(NotImplementedError, lambda: m * 1)
    raises(NotImplementedError, lambda: m / 1)
    raises(ValueError, lambda: m**-1)
    raises(TypeError, lambda: m.gcd(3))
    raises(TypeError, lambda: m.lcm(3))
Пример #4
0
def test_Monomial():
    m = Monomial((3, 4, 1), (x, y, z))
    n = Monomial((1, 2, 0), (x, y, z))

    assert m.as_expr() == x**3*y**4*z
    assert n.as_expr() == x**1*y**2

    assert m.as_expr(a, b, c) == a**3*b**4*c
    assert n.as_expr(a, b, c) == a**1*b**2

    assert m.exponents == (3, 4, 1)
    assert m.gens == (x, y, z)

    assert n.exponents == (1, 2, 0)
    assert n.gens == (x, y, z)

    assert m == (3, 4, 1)
    assert n != (3, 4, 1)
    assert m != (1, 2, 0)
    assert n == (1, 2, 0)
    assert (m == 1) is False

    assert m[0] == m[-3] == 3
    assert m[1] == m[-2] == 4
    assert m[2] == m[-1] == 1

    assert n[0] == n[-3] == 1
    assert n[1] == n[-2] == 2
    assert n[2] == n[-1] == 0

    assert m[:2] == (3, 4)
    assert n[:2] == (1, 2)

    assert m*n == Monomial((4, 6, 1))
    assert m/n == Monomial((2, 2, 1))

    assert m*(1, 2, 0) == Monomial((4, 6, 1))
    assert m/(1, 2, 0) == Monomial((2, 2, 1))

    assert m.gcd(n) == Monomial((1, 2, 0))
    assert m.lcm(n) == Monomial((3, 4, 1))

    assert m.gcd((1, 2, 0)) == Monomial((1, 2, 0))
    assert m.lcm((1, 2, 0)) == Monomial((3, 4, 1))

    assert m**0 == Monomial((0, 0, 0))
    assert m**1 == m
    assert m**2 == Monomial((6, 8, 2))
    assert m**3 == Monomial((9, 12, 3))

    raises(ExactQuotientFailed, lambda: m/Monomial((5, 2, 0)))

    mm = Monomial((1, 2, 3))
    raises(ValueError, lambda: mm.as_expr())
    assert str(mm) == 'Monomial((1, 2, 3))'
    assert str(m) == 'x**3*y**4*z**1'
    raises(NotImplementedError, lambda: m*1)
    raises(NotImplementedError, lambda: m/1)
    raises(ValueError, lambda: m**-1)
    raises(TypeError, lambda: m.gcd(3))
    raises(TypeError, lambda: m.lcm(3))