Gabriele Cosmo
68 lines
1.9 KiB
C++
68 lines
1.9 KiB
C++
// This code implementation is the intellectual property of
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// the GEANT4 collaboration.
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//
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// By copying, distributing or modifying the Program (or any work
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// based on the Program) you indicate your acceptance of this statement,
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// and all its terms.
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//
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// $Id: G4GaussChebyshevQ.hh,v 1.3 2000/11/20 17:26:42 gcosmo Exp $
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// GEANT4 tag $Name: geant4-03-00 $
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//
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// Class description:
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//
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// Class for Gauss-Chebyshev quadrature method
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// Roots of ortogonal polynoms and corresponding weights are calculated based on
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// iteration method (by bisection Newton algorithm). Constant values for initial
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// approximations were derived from the book: M. Abramowitz, I. Stegun, Handbook
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// of mathematical functions, DOVER Publications INC, New York 1965 ; chapters 9,
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// 10, and 22 .
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//
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// ------------------------------ CONSTRUCTORS ----------------------------
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//
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// Constructor for Gauss-Chebyshev quadrature method
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//
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// G4GaussChebyshevQuadrature( function pFunction,
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// G4int nChebyshev )
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//
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//
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//
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// ------------------------------- METHODS -----------------------------------
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//
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// Integrates function pointed by fFunction from a to b by Gauss-Chebyshev quadrature
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// method
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//
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// G4double Integral(G4double a, G4double b) const
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// ------------------------------- HISTORY --------------------------------
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//
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// 13.05.97 V.Grichine (Vladimir.Grichine@cern.ch)
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#ifndef G4GAUSSCHEBYSHEVQ_HH
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#define G4GAUSSCHEBYSHEVQ_HH
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#include "G4VGaussianQuadrature.hh"
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class G4GaussChebyshevQ : public G4VGaussianQuadrature
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{
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public:
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// Constructor/destructor
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G4GaussChebyshevQ( function pFunction,
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G4int nChebyshev ) ;
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~G4GaussChebyshevQ() ;
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// Methods
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G4double Integral(G4double a, G4double b) const ;
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private:
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G4GaussChebyshevQ(const G4GaussChebyshevQ&);
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G4GaussChebyshevQ& operator=(const G4GaussChebyshevQ&);
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};
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#endif
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