/usr/include/CLHEP/GenericFunctions/Gaussian.hh is in libclhep-dev 2.1.4.1+dfsg-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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// $Id: Gaussian.hh,v 1.2 2003/09/06 14:04:13 boudreau Exp $
//---------------------Gaussian---------------------------------------------//
// //
// Class Gaussian //
// Joe Boudreau, Petar Maksimovic, November 1999 //
// //
//--------------------------------------------------------------------------//
#ifndef Gaussian_h
#define Gaussian_h 1
#include "CLHEP/GenericFunctions/AbsFunction.hh"
#include "CLHEP/GenericFunctions/Parameter.hh"
namespace Genfun {
/**
* @author
* @ingroup genfun
*/
class Gaussian : public AbsFunction {
FUNCTION_OBJECT_DEF(Gaussian)
public:
// Constructor
Gaussian();
// Copy constructor
Gaussian(const Gaussian &right);
// Destructor
virtual ~Gaussian();
// Retreive function value
virtual double operator ()(double argument) const;
virtual double operator ()(const Argument & a) const {return operator() (a[0]);}
// Get the mean of the Gaussian
Parameter & mean();
const Parameter & mean() const;
// Get the sigma of the Gaussian
Parameter & sigma();
const Parameter & sigma() const;
// Derivative.
Derivative partial (unsigned int) const;
// Does this function have an analytic derivative?
virtual bool hasAnalyticDerivative() const {return true;}
private:
// It is illegal to assign an adjustable constant
const Gaussian & operator=(const Gaussian &right);
// Here is the decay constant
Parameter _mean;
// Here is the sigma
Parameter _sigma;
};
} // namespace Genfun
#endif
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