23-Jul-2022 17:28:28 neural_network_test(): Demonstrate back propagation. Using learning rate eta = 0.05 Number of iterations = 1000000 ans = 2 1 ans = 3 1 ans = 2 1 ans = 2 1 ans = 3 1 ans = 2 1 ans = 1 2 Graphics saved as "neural_network.png" Initial cost = 5.21536 Final cost = 0 neural_network_test(): Normal end of execution. 23-Jul-2022 17:28:33