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package nn
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import (
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"math"
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)
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var sigmoid = func(i, j int, x float64) float64 { return 1 / (1 + math.Exp(-x)) }
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var sigmoidToDerivative = func(y float64) float64 { return y * (1 - y) }
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var derivateSigmoid = func(i, j int, y float64) float64 { return y * (1 - y) }
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