fmm::detail::knm_wrapper< N > Struct Template Reference

#include <special_functions.h>

Collaboration diagram for fmm::detail::knm_wrapper< N >:

Public Member Functions
constexpr	knm_wrapper ()
constexpr double	operator() (int n, int m) const

Public Attributes
std::array< double, N *(N+1)/2 >	Knm

Detailed Description

template<int N>
struct fmm::detail::knm_wrapper< N >

Definition at line 57 of file special_functions.h.

Constructor & Destructor Documentation

knm_wrapper()

template<int N>

constexpr fmm::detail::knm_wrapper< N >::knm_wrapper ( )

inlineconstexpr

Definition at line 60 of file special_functions.h.

                                    : Knm()
        {
            Knm[0] = 1.0;
            for (int n = 1; n < N; ++n)
            {
                for (int m = 0; m <= n - 1; ++m)
                    Knm[n * (n + 1) / 2 + m] = Knm[n * (n - 1) / 2 + m] * (n - m) / (n + m);
                Knm[n * (n + 1) / 2 + n] = Knm[n * (n + 1) / 2 + n - 1] / (2 * n);
            }
            for (int n = 1; n < N; ++n)
            {
                for (int m = 0; m <= n; ++m)
#ifdef FMM_CONSTEXPR_MATH
                    Knm[n * (n + 1) / 2 + m] = constexpr_sqrt(Knm[n * (n + 1) / 2 + m]);
#else
                    Knm[n * (n + 1) / 2 + m] = sqrt(Knm[n * (n + 1) / 2 + m]);
#endif
            }
        }

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Member Function Documentation

operator()()

template<int N>

constexpr double fmm::detail::knm_wrapper< N >::operator() ( int  n, int  m  ) const

inlineconstexpr

Definition at line 79 of file special_functions.h.

        {
            return Knm[n * (n + 1) / 2 + m];
        }

Member Data Documentation

Knm

template<int N>

std::array<double, N * (N + 1) / 2> fmm::detail::knm_wrapper< N >::Knm

Definition at line 59 of file special_functions.h.

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The documentation for this struct was generated from the following file:

• VMfmm/common/special_functions.h