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| """ | |
| Sigmoid activation function | |
| """ | |
| function sigmoid(Z) | |
| A = 1 ./ (1 .+ exp.(.-Z)) | |
| return (A = A, Z = Z) | |
| end | |
| """ | |
| ReLU activation function | |
| """ | |
| function relu(Z) | |
| A = max.(0, Z) | |
| return (A = A, Z = Z) | |
| end |
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