def test_sub3():
"""
sub uc 3
"""
u = Vector(3, 1)
v = 1
assert u - v == Vector(2, 0)
def test_multiply3() -> None:
"""
multiply uc 3
"""
u = Vector(3, 1)
v = 3
assert u * v == Vector(9, 3)
def test_add3():
"""
add uc3
"""
u = Vector(3, 1)
v = 3
assert u + v == Vector(6, 4)
def test_to_cartesian1() -> None:
"""
test to_cartesian
"""
v = Vector(3.60555, 2.1588)
actual = v.to_cartesian()
expected = Vector(-2, 3)
assert almost_equal(actual, expected, accuracy=10**-5)
def test_sub2():
"""
sub uc 2
"""
u, v = make_vectors([(2, -1), (1, 0)])
assert subtract(u, v) == Vector(1, -1)
def test_sub1():
"""
sub uc 1
"""
u, v = make_vectors([(2, -1), (1, 0)])
assert u - v == Vector(1, -1)
def test_add2():
"""
add uc 2
"""
u, v = make_vectors([(2, -1), (1, 0)])
assert add(u, v) == Vector(3, -1)
def test_add1():
"""
add uc 1
"""
u, v = make_vectors([(2, -1), (1, 0)])
assert u + v == Vector(3, -1)
def test_multiply2():
"""
multiply uc 2
"""
u, v = make_vectors([(2, -1), (1, 1)])
assert multiply(u, v) == Vector(2, -1)
def test_multiply1():
"""
multiply uc 1
"""
u, v = make_vectors([(2, -1), (1, 1)])
assert u * v == Vector(2, -1)