Python sin示例

示例#1

文件： test_interval_functions.py 项目： KonstantinTogoi/sympy

def test_sin():
    a = sin(interval(0, np.pi / 4))
    assert a.start == np.sin(0)
    assert a.end == np.sin(np.pi / 4)

    a = sin(interval(-np.pi / 4, np.pi / 4))
    assert a.start == np.sin(-np.pi / 4)
    assert a.end == np.sin(np.pi / 4)

    a = sin(interval(np.pi / 4, 3 * np.pi / 4))
    assert a.start == np.sin(np.pi / 4)
    assert a.end == 1

    a = sin(interval(7 * np.pi / 6, 7 * np.pi / 4))
    assert a.start == -1
    assert a.end == np.sin(7 * np.pi / 6)

    a = sin(interval(0, 3 * np.pi))
    assert a.start == -1
    assert a.end == 1

    a = sin(interval(np.pi / 3, 7 * np.pi / 4))
    assert a.start == -1
    assert a.end == 1

    a = sin(np.pi / 4)
    assert a.start == np.sin(np.pi / 4)
    assert a.end == np.sin(np.pi / 4)

    a = sin(interval(1, 2, is_valid=False))
    assert a.is_valid is False

示例#2

文件： test_interval_functions.py 项目： zabatistas/sympy

def test_sin():
    a = sin(interval(0, np.pi / 4))
    assert a.start == np.sin(0)
    assert a.end == np.sin(np.pi / 4)

    a = sin(interval(-np.pi / 4, np.pi / 4))
    assert a.start == np.sin(-np.pi / 4)
    assert a.end == np.sin(np.pi / 4)

    a = sin(interval(np.pi / 4, 3 * np.pi / 4))
    assert a.start == np.sin(np.pi / 4)
    assert a.end == 1

    a = sin(interval(7 * np.pi / 6, 7 * np.pi / 4))
    assert a.start == -1
    assert a.end == np.sin(7 * np.pi / 6)

    a = sin(interval(0, 3 * np.pi))
    assert a.start == -1
    assert a.end == 1

    a = sin(interval(np.pi / 3, 7 * np.pi / 4))
    assert a.start == -1
    assert a.end == 1

    a = sin(np.pi / 4)
    assert a.start == np.sin(np.pi / 4)
    assert a.end == np.sin(np.pi / 4)

    a = sin(interval(1, 2, is_valid=False))
    assert a.is_valid is False