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| import numpy as np | |
| def sigmoid(x): | |
| return 1.0 / (1.0 + np.exp(-x)) | |
| def sigmoid_prime(x): | |
| return x * (1.0 - x) | |
| epochs = 5000 | |
| input_size, hidden_size, output_size = 2, 3, 1 |