Erinevus lehekülje "Sigmoidfunktsioonid" redaktsioonide vahel

resümee puudub
The standard logistic function has an easily calculated derivative:
 
: <math>{\displaystyle f(x)={\frac {1}{1+e^{-x}}}={\frac {e^{x}}{1+e^{x}}}} {\displaystyle f(x)={\frac {1}{1+e^{-x}}}={\frac {e^{x}}{1+e^{x}}}}
 
{\displaystyle {\frac {d}{dx}}f(x)={\frac {e^{x}\cdot (1+e^{x})-e^{x}\cdot e^{x}}{(1+e^{x})^{2}}}} {\displaystyle {\frac {d}{dx}}f(x)={\frac {e^{x}\cdot (1+e^{x})-e^{x}\cdot e^{x}}{(1+e^{x})^{2}}}}