Gegenbauer.h

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#ifndef GEGENBAUER_H
#define GEGENBAUER_H


// ----------------------------------------------------------------------
//
// Bridge object between C++ code and the GSL Gegenbauer functions
//
// ----------------------------------------------------------------------

#ifndef ZMENVIRONMENT_H
  #include "ZMutility/ZMenvironment.h"
#endif
#include <utility>
#include <vector>

ZM_BEGIN_NAMESPACE( zmsf )      /*  namespace zmsf  {  */

typedef std::vector<double> Dvector;
typedef std::pair<double,double> Dpair;


struct Gegenbauer {

  static double GegenPoly1( const double lambda, const double x );

  static Dpair GegenPoly1Err( const double lambda, const double x );

  static double GegenPoly2( const double lambda, const double x );

  static Dpair GegenPoly2Err( const double lambda, const double x );

  static double GegenPoly3( const double lambda, const double x );

  static Dpair GegenPoly3Err( const double lambda, const double x );

  static double GegenPolyN( const int n, const double lambda, const double x );

  static Dpair GegenPolyNErr( const int n, const double lambda, const double x );

  static Dvector GegenPolyArray( const int nmax, const double lambda, const double x );

  static Dvector GegenPolyArrayErr( const int nmax, const double lambda,
                                             const double x );

};  // Gegenbauer

ZM_END_NAMESPACE( zmsf )        /*  }  // namespace zmsf  */

#endif  /* GEGENBAUER_H */

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