def test_id(x):
"""
Write a test that ensures some other property holds for your functions.
"""
assert operators.id(x) == x
assert_close(x, operators.neg(operators.neg(x)))
if x != 0:
assert_close(x, operators.inv(operators.inv(x)))
def test_inv(x):
"""
Write a test that ensures some other property holds for your functions.
"""
if x != 0:
assert_close(operators.mul(x, operators.inv(x)), 1)
assert_close(operators.add(x, operators.neg(x)), 0)
def test_other(x, y):
"""
Write a test that ensures some other property holds for your functions.
"""
r1 = operators.mul(operators.neg(x), y)
r2 = operators.mul(operators.mul(-1.0, y), operators.mul(1.0, x))
assert_close(r1, r2)
def test_same_as_python(x, y):
"Check that the main operators all return the same value of the python version"
assert_close(mul(x, y), x * y)
assert_close(add(x, y), x + y)
assert_close(neg(x), -x)
assert_close(max(x, y), x if x > y else y)
if x != 0.0:
assert_close(inv(x), 1.0 / x)
def test_other():
"""
Write a test that ensures some other property holds for your functions.
"""
a = 10.0
assert operators.neg(a) == -10.0
assert operators.mul(a, -1) == -1 * a
def test_add_and_mul(x, y):
assert_close(operators.mul(x, y), x * y)
assert_close(operators.add(x, y), x + y)
assert_close(operators.neg(x), -x)
def test_other(x):
"""
Difference of identical numbers is 0
"""
assert_close(operators.add(x, operators.neg(x)), 0.)
def test_other(x):
"""
Write a test that ensures some other property holds for your functions.
"""
assert operators.neg(x) == operators.mul(-1, x)
def test_other(a):
"""
Write a test that ensures some other property holds for your functions.
"""
assert a == operators.neg(operators.neg(a))
assert_close(operators.sigmoid(-a), 1 - operators.sigmoid(a))
