Trigonometry.h

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#ifndef TRIGONOMETRY_H
#define TRIGONOMETRY_H


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

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

ZM_BEGIN_NAMESPACE( zmsf )      /*  namespace zmsf  {  */

typedef std::pair<double,double> Dpair;
typedef std::complex<double> Dcomplex;
typedef std::pair<Dcomplex,Dcomplex> Cpair;


struct Trigonometry {

  static double Sin( const double x );

  static Dpair SinErr( const double x ); 

  static double Cos( const double x );

  static Dpair CosErr( const double x );

  static double Hypot( const double x, double y );

  static Dpair HypotErr( const double x, double y );

  static Dcomplex Sin( const Dcomplex z );

  static Cpair SinErr( const Dcomplex z ); 

  static Dcomplex Cos( const Dcomplex z );

  static Cpair CosErr( const Dcomplex z ); 

  static Dcomplex lnSin( const Dcomplex x );

  static Cpair lnSinErr( const Dcomplex x );

  static double Sinc( const double x );

  static Dpair SincErr( const double x );

  static double lnSinh( const double x );

  static Dpair lnSinhErr( const double x );

  static double lnCosh( const double x );

  static Dpair lnCoshErr( const double x );

  static Dpair PolarToRect( Dpair rtheta );

  static Dpair PolarToRectErr( Dpair rtheta, double& dx, double& dy );

  static Dpair RectToPolar( Dpair xy );

  static Dpair RectToPolarErr( Dpair xy, double& dr, double& dtheta );

  static Dpair Sin( const double x, const double dx );

  static Dpair Cos( const double x, const double dx );

  static double StandardizeSymm( const double theta );

  static Dpair StandardizeSymmErr( const double theta );

  static double StandardizePos( const double theta );

  static Dpair StandardizePosErr( const double theta );

};  // Trigonometry

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

#endif  /* TRIGONOMETRY_H */

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