def test_ADmath_cotr():
f = ADmath.cot(1)
assert f == 1 / np.tan(1)
def test_ADmath_cot():
f = ADmath.cot(ADnum(1, der=1))
assert f.val == 1 / np.tan(1)
assert f.der == -1 / (np.sin(1)**2)
assert len(f.graph) == 1
def test_ADmath_cotr():
f = ADmath.cot(1)
assert f == 1 / np.tan(1)
def test_ADmath_cot():
f = ADmath.cot(ADnum(1, der=1))
assert f.val == 1 / np.tan(1)
assert f.der == -1 / (np.sin(1)**2)
assert len(f.graph) == 1