function.cls

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VERSION 1.0 CLASS
BEGIN
  MultiUse = -1  'True
  Persistable = 0  'NotPersistable
  DataBindingBehavior = 0  'vbNone
  DataSourceBehavior  = 0  'vbNone
  MTSTransactionMode  = 0  'NotAnMTSObject
END
Attribute VB_Name = "Function"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = True
Attribute VB_PredeclaredId = False
Attribute VB_Exposed = True

Public Function AddFunction(i As Integer, x As Double)

    Select Case i
        Case 0
            AddFunction = 1 / (1 + Exp(-x))
        Case 1
            AddFunction = (1 - Exp(-x)) / (1 + Exp(-x))
    End Select
    
End Function

Public Function FunctionX(i As Integer) As String

    Select Case i
        Case 0
            FunctionX = "f(x)=1 / (1 + Exp(-x))"
        Case 1
            FunctionX = "f(x)=(1 - Exp(-x)) / (1 + Exp(-x))"
    End Select
    
End Function

Public Function GetNum()

    GetNum = 2
    
End Function

Public Function DaoShuX(i As Integer, x As Double)
    
    Select Case i
        Case 0
            DaoShuX = Exp(-x) / (1 + Exp(-x)) ^ 2
        Case 1
            DaoShuX = 2 * Exp(-x) / (1 + Exp(-x)) ^ 2
    End Select
    
End Function