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Home/ Questions/Q 7763593
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Editorial Team
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Editorial Team
Asked: June 1, 20262026-06-01T14:41:52+00:00 2026-06-01T14:41:52+00:00

What is the inverse of the sigmoid (i.e. standard logistic ) function? sigmoid(x) =

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What is the inverse of the sigmoid (i.e. standard logistic) function?

sigmoid(x) = 1 / (1 + exp(-x))
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  1. Editorial Team
    Editorial Team
    2026-06-01T14:41:54+00:00Added an answer on June 1, 2026 at 2:41 pm

    If

    y = 1 / (1 + exp(-x))
    

    then its inverse is

    x = ln(y / (1 - y))
    
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