MnPosDef.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_MnPosDef
#define ROOT_Minuit2_MnPosDef

namespace ROOT {

   namespace Minuit2 {


class MinimumState;
class MinimumError;
class MnMachinePrecision;

/**
   Force the covariance matrix to be positive defined
   by adding extra terms in the diagonal
 */
class MnPosDef {

public:

  MnPosDef() {}

  ~MnPosDef() {}

  MinimumState operator()(const MinimumState&, const MnMachinePrecision&) const;
  MinimumError operator()(const MinimumError&, const MnMachinePrecision&) const;
private:

};

  }  // namespace Minuit2

}  // namespace ROOT

#endif  // ROOT_Minuit2_MnPosDef