def test_log_n3(self):
x = 0.123
a = nthderiv.log(x, n=3)
b = 2 / np.power(x, 3)
assert_allclose(a, b)
def test_log_n1(self):
x = 0.123
a = nthderiv.log(x, n=1)
b = 1 / x
assert_allclose(a, b)
def test_log_n2(self):
x = 0.123
a = nthderiv.log(x, n=2)
b = -1 / np.square(x)
assert_allclose(a, b)
def test_log_n0(self):
x = 0.123
a = nthderiv.log(x, n=0)
b = np.log(x)
assert_allclose(a, b)
def test_log_n3(self):
x = 0.123
a = nthderiv.log(x, n=3)
b = 2 / np.power(x, 3)
assert_allclose(a, b)
def test_log_n2(self):
x = 0.123
a = nthderiv.log(x, n=2)
b = -1 / np.square(x)
assert_allclose(a, b)
def test_log_n1(self):
x = 0.123
a = nthderiv.log(x, n=1)
b = 1 / x
assert_allclose(a, b)
def test_log_n0(self):
x = 0.123
a = nthderiv.log(x, n=0)
b = np.log(x)
assert_allclose(a, b)