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

#include <special_functions.h>

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

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

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

Detailed Description

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

Definition at line 88 of file special_functions.h.

Constructor & Destructor Documentation

anm_wrapper()

template<int N>

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

inlineconstexpr

Definition at line 91 of file special_functions.h.

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

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Member Function Documentation

operator()()

template<int N>

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

inlineconstexpr

Definition at line 110 of file special_functions.h.

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

Member Data Documentation

Anm

template<int N>

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

Definition at line 90 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