MnEigen.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_MnEigen
#define ROOT_Minuit2_MnEigen
 
#include "Minuit2/MnConfig.h"
#include <vector>
 
namespace ROOT {
 
namespace Minuit2 {
 
class MnUserCovariance;
 
/**
   API class for calculating the eigenvalues of symmetric matrix
 */
 
class MnEigen {
public:
   /// calculate the eigenvalues
   std::vector<double> operator()(const MnUserCovariance &) const;
};
 
} // namespace Minuit2
 
} // namespace ROOT
 
#endif // ROOT_Minuit2_MnEigen