Package libai.common.functions
Class Sigmoid
- java.lang.Object
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- libai.common.functions.Sigmoid
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- All Implemented Interfaces:
java.io.Serializable
,Function
public class Sigmoid extends java.lang.Object implements Function
Sigmoid function: f(x) = 1/(1+e^-x) The first derivate of the sigmoid function S(x) S'(x) = S(x)*(1-S(x))- See Also:
- Serialized Form
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Constructor Summary
Constructors Constructor Description Sigmoid()
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description double
eval(double x)
Function to evaluate.Function
getDerivate()
Evaluate the first derivate of this function f'(x)
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Method Detail
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eval
public double eval(double x)
Description copied from interface:Function
Function to evaluate.
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getDerivate
public Function getDerivate()
Description copied from interface:Function
Evaluate the first derivate of this function f'(x)- Specified by:
getDerivate
in interfaceFunction
- Returns:
- a new Function object with the derivate function.
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