def test_asinh():
    a = asinh(interval(1, 2))
    assert a.start == np.arcsinh(1)
    assert a.end == np.arcsinh(2)

    a = asinh(0.5)
    assert a.start == np.arcsinh(0.5)
    assert a.end == np.arcsinh(0.5)
def test_asinh():
    a = asinh(interval(1, 2))
    assert a.start == np.arcsinh(1)
    assert a.end == np.arcsinh(2)

    a = asinh(0.5)
    assert a.start == np.arcsinh(0.5)
    assert a.end == np.arcsinh(0.5)