28 lines
473 B
Markdown
28 lines
473 B
Markdown
---
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id:
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aliases: []
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tags:
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- authorship/original
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- destiny/permanent
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- status/incomplete
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- topic/math
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- type/encyclopedia
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title: Sigmoid Functions
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---
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# Sigmoid Functions
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![[sigmoid-function-example.excalidraw]]
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$f'(x)$ is a **sigmoid** function.
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A sigmoid function compresses a function with infinite range to (0,1)
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This is preferable to a floor-ceiling piece-wise function
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since it remains differentiable.
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## Formula
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$$
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\sigma(x) = \frac{1}{1 + e^{-x}}
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$$
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