SinParameterTransformation.h

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// @(#)root/minuit2:$Id$
// Authors: M. Winkler, F. James, L. Moneta, A. Zsenei   2003-2005
 
/**********************************************************************
 *                                                                    *
 * Copyright (c) 2005 LCG ROOT Math team,  CERN/PH-SFT                *
 *                                                                    *
 **********************************************************************/
 
#ifndef ROOT_Minuit2_SinParameterTransformation
#define ROOT_Minuit2_SinParameterTransformation
 
namespace ROOT {
 
namespace Minuit2 {
 
class MnMachinePrecision;
 
/**
   class for the transformation for double-limited parameter
   Using a sin function one goes from a double-limited parameter range to
   an unlimited one
 */
class SinParameterTransformation {
 
public:
   SinParameterTransformation() {}
 
   ~SinParameterTransformation() {}
 
   double Int2ext(double Value, double Upper, double Lower) const;
   double Ext2int(double Value, double Upper, double Lower, const MnMachinePrecision &) const;
   double DInt2Ext(double Value, double Upper, double Lower) const;
 
private:
};
 
} // namespace Minuit2
 
} // namespace ROOT
 
#endif // ROOT_Minuit2_SinParameterTransformation