def test_is_strictly_increasing():
assert is_strictly_increasing(4 * x**3 - 6 * x**2 - 72 * x + 30,
Interval.Ropen(-oo, -2))
assert is_strictly_increasing(4 * x**3 - 6 * x**2 - 72 * x + 30,
Interval.Lopen(3, oo))
assert is_strictly_increasing(4 * x**3 - 6 * x**2 - 72 * x + 30,
Interval.open(-2, 3)) is False
assert is_strictly_increasing(-x**2, Interval(0, oo)) is False
def test_is_strictly_increasing():
"""Test whether is_strictly_increasing returns correct value."""
assert is_strictly_increasing(4 * x**3 - 6 * x**2 - 72 * x + 30,
Interval.Ropen(-oo, -2))
assert is_strictly_increasing(4 * x**3 - 6 * x**2 - 72 * x + 30,
Interval.Lopen(3, oo))
assert not is_strictly_increasing(4 * x**3 - 6 * x**2 - 72 * x + 30,
Interval.open(-2, 3))
assert not is_strictly_increasing(-x**2, Interval(0, oo))
assert not is_strictly_decreasing(1)
def test_is_strictly_increasing():
"""Test whether is_strictly_increasing returns correct value."""
assert is_strictly_increasing(
4*x**3 - 6*x**2 - 72*x + 30, Interval.Ropen(-oo, -2))
assert is_strictly_increasing(
4*x**3 - 6*x**2 - 72*x + 30, Interval.Lopen(3, oo))
assert not is_strictly_increasing(
4*x**3 - 6*x**2 - 72*x + 30, Interval.open(-2, 3))
assert not is_strictly_increasing(-x**2, Interval(0, oo))
assert not is_strictly_decreasing(1)
def test_is_strictly_increasing():
assert is_strictly_increasing(4*x**3 - 6*x**2 - 72*x + 30, Interval.Ropen(-oo, -2))
assert is_strictly_increasing(4*x**3 - 6*x**2 - 72*x + 30, Interval.Lopen(3, oo))
assert is_strictly_increasing(4*x**3 - 6*x**2 - 72*x + 30, Interval.open(-2, 3)) is False
assert is_strictly_increasing(-x**2, Interval(0, oo)) is False