Logarithm.h

Go to the documentation of this file.

#ifndef LOGARITHM_H
#define LOGARITHM_H

// ----------------------------------------------------------------------
//
// Bridge object between C++ code and the GSL logarithm 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 Logarithm {

  static double Log( const double x );

  static Dpair LogErr( const double x );

  static double LogAbs( const double x );

  static Dpair LogAbsErr( const double x );

  static Dcomplex Log( const Dcomplex z );

  static Cpair LogErr( const Dcomplex z );

  static double Log1p( const double x );

  static Dpair Log1pErr( const double x );

  static double Log1pm( const double x );

  static Dpair Log1pmErr( const double x ); 

};  // Logarithm

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

#endif  /* LOGARITHM_H */

---