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SqrtUpParameterTransformation.h
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1 // @(#)root/minuit2:$Id$
2 // Authors: M. Winkler, F. James, L. Moneta, A. Zsenei 2003-2005
3 
4 /**********************************************************************
5  * *
6  * Copyright (c) 2005 LCG ROOT Math team, CERN/PH-SFT *
7  * *
8  **********************************************************************/
9 
10 // Project : LCG
11 // Package : Minuit
12 // Author : Lorenzo.MONETA@cern.ch
13 // Created by: moneta at Thu Apr 8 10:26:22 2004
14 
15 #ifndef ROOT_Minuit2_SqrtUpParameterTransformation
16 #define ROOT_Minuit2_SqrtUpParameterTransformation
17 
18 namespace ROOT {
19 
20 namespace Minuit2 {
21 
22 class MnMachinePrecision;
23 
24 /**
25  * Transformation from external to internal Parameter based on sqrt(1 + x**2)
26  *
27  * This transformation applies for the case of single side Upper Parameter limits
28  */
29 
30 class SqrtUpParameterTransformation /* : public ParameterTransformation */ {
31 
32 public:
33  // create with user defined precision
35 
37 
38  // transformation from internal to external
39  double Int2ext(double Value, double Upper) const;
40 
41  // transformation from external to internal
42  double Ext2int(double Value, double Upper, const MnMachinePrecision &) const;
43 
44  // derivative of transformation from internal to external
45  double DInt2Ext(double Value, double Upper) const;
46 
47 private:
48 };
49 
50 } // namespace Minuit2
51 
52 } // namespace ROOT
53 
54 #endif
ROOT::Minuit2::SqrtUpParameterTransformation::DInt2Ext
double DInt2Ext(double Value, double Upper) const
Definition: SqrtUpParameterTransformation.cxx:40
ROOT::Minuit2::SqrtUpParameterTransformation::~SqrtUpParameterTransformation
~SqrtUpParameterTransformation()
Definition: SqrtUpParameterTransformation.h:36
ROOT::Minuit2::SqrtUpParameterTransformation::Ext2int
double Ext2int(double Value, double Upper, const MnMachinePrecision &) const
Definition: SqrtUpParameterTransformation.cxx:29
ROOT::Minuit2::SqrtUpParameterTransformation::SqrtUpParameterTransformation
SqrtUpParameterTransformation()
Definition: SqrtUpParameterTransformation.h:34
Value
Definition: functioncalls.h:15
ROOT::Minuit2::MnMachinePrecision
Sets the relative floating point (double) arithmetic precision.
Definition: MnMachinePrecision.h:32
ROOT::Minuit2::SqrtUpParameterTransformation::Int2ext
double Int2ext(double Value, double Upper) const
Definition: SqrtUpParameterTransformation.cxx:22
ROOT::Minuit2::SqrtUpParameterTransformation
Transformation from external to internal Parameter based on sqrt(1 + x**2)
Definition: SqrtUpParameterTransformation.h:30
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