/usr/include/CLHEP/GenericFunctions/TrivariateGaussian.hh is in libclhep-dev 2.1.4.1+dfsg-1.
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// $Id: TrivariateGaussian.hh,v 1.2 2003/09/06 14:04:13 boudreau Exp $
//---------------------TrivariateGaussian-----------------------------------//
// //
// Class TrivariateGaussian //
// Joe Boudreau, Petar Maksimovic, November 1999 //
// //
//--------------------------------------------------------------------------//
#ifndef TrivariateGaussian_h
#define TrivariateGaussian_h 1
#include "CLHEP/GenericFunctions/AbsFunction.hh"
#include "CLHEP/GenericFunctions/Parameter.hh"
namespace Genfun {
/**
* @author
* @ingroup genfun
*/
class TrivariateGaussian : public AbsFunction {
FUNCTION_OBJECT_DEF(TrivariateGaussian)
public:
// Constructor
TrivariateGaussian();
// Copy constructor
TrivariateGaussian(const TrivariateGaussian &right);
// Destructor
virtual ~TrivariateGaussian();
// Retreive function value
virtual double operator ()(double argument) const; // Gives an error.
virtual double operator ()(const Argument & a) const; // Must use this one
// Dimensionality
virtual unsigned int dimensionality() const;
// Get the mean of the TrivariateGaussian
Parameter & mean0();
const Parameter & mean0() const;
Parameter & mean1();
const Parameter & mean1() const;
Parameter & mean2();
const Parameter & mean2() const;
// Get the sigma of the TrivariateGaussian
Parameter & sigma0();
const Parameter & sigma0() const;
Parameter & sigma1();
const Parameter & sigma1() const;
Parameter & sigma2();
const Parameter & sigma2() const;
// Get the correlation coefficient:
Parameter & corr01();
const Parameter & corr01() const;
Parameter & corr02();
const Parameter & corr02() const;
Parameter & corr12();
const Parameter & corr12() const;
private:
// It is illegal to assign an adjustable constant
const TrivariateGaussian & operator=(const TrivariateGaussian &right);
// Here is the decay constant
Parameter _mean0;
Parameter _mean1;
Parameter _mean2;
// Here is the sigma
Parameter _sigma0;
Parameter _sigma1;
Parameter _sigma2;
// Here is the correlation coefficient:
Parameter _corr01;
Parameter _corr02;
Parameter _corr12;
};
} // namespace Genfun
#endif
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