My code for the Exercise 5 is correct, but I cannot find why I cannot pass the Exercise 6. Thank you very much for help!!

The error code is following:

##
w = [[0.61865617]

[2.09693886]]

b = -0.0016486744297339539

dw = [[ 0.36559207]

[-0.09323194]]

db = -0.18318604774821712

Costs = [array(0.15900538)]

AssertionError Traceback (most recent call last)

in

7 print("Costs = " + str(costs))

8

----> 9 optimize_test(optimize)

~/work/release/W2A2/public_tests.py in optimize_test(target)

73 assert type(costs) == list, “Wrong type for costs. It must be a list”

74 assert len(costs) == 2, f"Wrong length for costs. {len(costs)} != 2"

—> 75 assert np.allclose(costs, expected_cost), f"Wrong values for costs. {costs} != {expected_cost}"

76

77 assert type(grads[‘dw’]) == np.ndarray, f"Wrong type for grads[‘dw’]. {type(grads[‘dw’])} != np.ndarray"

AssertionError: Wrong values for costs. [array(5.80154532), array(0.59716577)] != [5.80154532, 0.31057104]