remove some explicit back!
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@ -6,16 +6,3 @@ end
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Affine(in::Integer, out::Integer; init = initn) =
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Affine(init(in, out), init(1, out))
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function back!(m::Affine, Δ, x)
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W, b = m.W, m.b
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W.Δx[:] = x' * Δ
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b.Δx[:] = sum(Δ, 1)
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Δ * W.x'
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end
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function update!(m::Affine, η)
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update!(m.W, η)
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update!(m.b, η)
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m
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end
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