def test_pow_2():
a = ad.StartUp(2)
x1 = a.create_variable(2, 'x1')
x2 = a.create_variable(3, 'x2')
x3 = x1**x2
assert x3.val == [8]
assert x3.der[0] == 12
assert np.round(x3.der[1], 2) == 5.55
def test_mul():
a = ad.StartUp(2)
x1 = a.create_variable(3, 'x1')
x2 = a.create_variable(4, 'x2')
x3 = x1 * x2 * x1
assert x3.val == [36]
assert x3.der[0] == 24
assert x3.der[1] == 9
def test_sub_3():
a = ad.StartUp(2)
x1 = a.create_variable(2, 'x1')
x2 = a.create_variable(5, 'x2')
x3 = x2 - x1
assert x3.val == [3]
assert x3.der[0] == -1
assert x3.der[1] == 1
def test_div_3():
a = ad.StartUp(3)
x1 = a.create_variable(10, 'x1')
x2 = a.create_variable(2, 'x2')
x3 = a.create_variable(1, 'x3')
x4 = x1/x2/x3
assert x4.val == [5]
assert x4.der[0] == 0.5
assert x4.der[1] == -2.5
assert x4.der[2] == -5
def test_add_1():
a = ad.StartUp(1)
x1 = a.create_variable(1, 'x1')
x2 = x1 + 2
x3 = 3 + x1
assert x1.val == [1]
assert x1.der == [1]
assert x2.val == [3]
assert x2.der == [1]
assert x3.val == [4]
assert x3.der == [1]
def test_pow_1():
a = ad.StartUp(1)
x1 = a.create_variable(2, 'x1')
x2 = 5**x1
assert x2.val == [25]
assert np.round(x2.der, 2) == 40.24
def test_div_2():
a = ad.StartUp(1)
x1 = a.create_variable(1, 'x1')
x2 = 5/x1
assert x2.val == [5]
assert x2.der[0] == -5
def test_dup_vars():
with np.testing.assert_raises(Exception):
a = ad.StartUp(2)
x1 = a.create_variable(1, 'x1')
x2 = a.create_variable(2, 'x1')
def test_div_1():
a = ad.StartUp(1)
x1 = a.create_variable(1, 'x1')
x2 = x1/5
assert x2.val == [0.2]
assert x2.der[0] == 0.2
def test_sub_2():
a = ad.StartUp(1)
x1 = a.create_variable(2, 'x1')
x2 = 4 - x1
assert x2.val == [2]
assert x2.der == [-1]
def test_sub_1():
a = ad.StartUp(1)
x1 = a.create_variable(2, 'x1')
x2 = x1 - 4
assert x2.val == [-2]
assert x2.der == [1]
def test_not_equal():
a = ad.StartUp(2)
x1 = a.create_variable(4, 'x1')
x2 = a.create_variable(4, 'x2')
x3 = (x1 != x2)
assert x3 == True
def test_equal_2():
a = ad.StartUp(2)
x1 = a.create_variable(4, 'x1')
x3 = (x1 == 5)
assert x3 == False
def test_neg():
a = ad.StartUp(1)
x1 = a.create_variable(1, 'x1')
x2 = -x1
assert x2.val == [-1]
assert x2.der == [-1]