C++ (Cpp) gsl_sf_ellint_RF示例

示例#1

文件： test_ellint_rf.cpp 项目： LancelotGHX/Simula

int main()
{
#include "ellint_rf_data.ipp"
#include "ellint_rf_xxx.ipp"
#include "ellint_rf_xyy.ipp"
#include "ellint_rf_0yy.ipp"
#include "ellint_rf_xy0.ipp"

   add_data(ellint_rf_data);
   add_data(ellint_rf_xxx);
   add_data(ellint_rf_xyy);
   add_data(ellint_rf_0yy);
   add_data(ellint_rf_xy0);

   unsigned data_total = data.size();

   screen_data([](const std::vector<double>& v){  return boost::math::ellint_rf(v[0], v[1], v[2]);  }, [](const std::vector<double>& v){ return v[3];  });


#if defined(TEST_GSL) && !defined(COMPILER_COMPARISON_TABLES)
   screen_data([](const std::vector<double>& v){  return gsl_sf_ellint_RF(v[0], v[1], v[2], GSL_PREC_DOUBLE);  }, [](const std::vector<double>& v){ return v[3];  });
#endif

   unsigned data_used = data.size();
   std::string function = "ellint_rf[br](" + boost::lexical_cast<std::string>(data_used) + "/" + boost::lexical_cast<std::string>(data_total) + " tests selected)";
   std::string function_short = "ellint_rf";

   double time;

   time = exec_timed_test([](const std::vector<double>& v){  return boost::math::ellint_rf(v[0], v[1], v[2]);  });
   std::cout << time << std::endl;
#if !defined(COMPILER_COMPARISON_TABLES) && (defined(TEST_GSL) || defined(TEST_RMATH))
   report_execution_time(time, std::string("Library Comparison with ") + std::string(compiler_name()) + std::string(" on ") + platform_name(), function, boost_name());
#endif
   report_execution_time(time, std::string("Compiler Comparison on ") + std::string(platform_name()), function_short, compiler_name() + std::string("[br]") + boost_name());
   //
   // Boost again, but with promotion to long double turned off:
   //
#if !defined(COMPILER_COMPARISON_TABLES)
   if(sizeof(long double) != sizeof(double))
   {
      time = exec_timed_test([](const std::vector<double>& v){  return boost::math::ellint_rf(v[0], v[1], v[2], boost::math::policies::make_policy(boost::math::policies::promote_double<false>()));  });
      std::cout << time << std::endl;
#if !defined(COMPILER_COMPARISON_TABLES) && (defined(TEST_GSL) || defined(TEST_RMATH))
      report_execution_time(time, std::string("Library Comparison with ") + std::string(compiler_name()) + std::string(" on ") + platform_name(), function, boost_name() + "[br]promote_double<false>");
#endif
      report_execution_time(time, std::string("Compiler Comparison on ") + std::string(platform_name()), function_short, compiler_name() + std::string("[br]") + boost_name() + "[br]promote_double<false>");
   }
#endif


#if defined(TEST_GSL) && !defined(COMPILER_COMPARISON_TABLES)
   time = exec_timed_test([](const std::vector<double>& v){  return gsl_sf_ellint_RF(v[0], v[1], v[2], GSL_PREC_DOUBLE);  });
   std::cout << time << std::endl;
   report_execution_time(time, std::string("Library Comparison with ") + std::string(compiler_name()) + std::string(" on ") + platform_name(), function, "GSL " GSL_VERSION);
#endif

   return 0;
}

示例#2

文件： sf_ellint.hpp 项目： fujiisoup/MyLibrary

      /**
       * C++ version of gsl_sf_ellint_RF().
       * Carlson's symmetric basis of functions
       *
       * RF(x,y,z) = 1/2 Integral[(t+x)^(-1/2) (t+y)^(-1/2) (t+z)^(-1/2), {t,0,Inf}]
       * @param x A real number
       * @param y A real number
       * @param z A real number
       * @param mode The mode
       * @return The function value
       */
      inline double RF( double x, double y, double z, mode_t mode ){
	return gsl_sf_ellint_RF( x, y, z, mode ); }