File:Quatre fonctions sigmoïdes — four sigmoidal functions.jpg
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Captions
Captions
These four sigmoidal functions (canonical expressions, scaled) are : (blue) y=atan(x) ; (black) y=x/√(1+x²) ; (red) y=logistic.Verhulst(x) ; (green) y=erf(x).
Summary
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| Description |
Français : La mise à l'échelle en x et en y est telle que : les valeurs asymptotiques sont identiques, ±1 ; et la même pente à l'origine (en x=0), est la même pour toutes.
English: The scaling in x and in y is such that : the same asymptotic values are the same, ±1 ; and the slope at the origin, x=0, is the same for all curves. |
| Date | |
| Source | Own work |
| Author | Eric.LEWIN |
(plotted with the Grapher (v.2.7) application from Apple inc.)
Licensing
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I, the copyright holder of this work, hereby publish it under the following license:
This file is licensed under the Creative Commons Attribution 4.0 International license.
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- to share – to copy, distribute and transmit the work
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 11:32, 9 January 2024 | | 826 × 509 (95 KB) | Eric.LEWIN (talk | contribs) | Uploaded own work with UploadWizard |
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