flag_core.h

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// FLAG package
// Copyright (C) 2012
// Boris Leistedt & Jason McEwen

#ifndef FLAG_CORE
#define FLAG_CORE

#include <complex.h>


void flag_core_allocate_flmn(complex double **flmn, int L, int N);

void flag_core_allocate_f_real(double **f, int L, int N);

void flag_core_allocate_f(complex double **f, int L, int N);

int flag_core_flmn_size(int L, int N);

int flag_core_f_size_mw(int L, int N);

void flag_core_analysis(complex double *flmn, const complex double *f, int L, double tau, int N, int spin);

 void flag_core_synthesis(complex double *f, const complex double *flmn, const double *nodes, int Nnodes, int L, double tau, int N, int spin);

void flag_core_fourierbessel_analysis(complex double *flmn, const complex double *f, int L, double tau, int N);
void flag_core_fourierbessel_synthesis(complex double *f, const complex double *flmn, const double *nodes, int Nnodes, int L, double tau, int N);


void flag_core_analysis_real(complex double *flmn, const double *f, int L, double tau, int N);

void flag_core_synthesis_real(double *f, const complex double *flmn, const double *nodes, int Nnodes, int L, double tau, int N);


double j_ell(double X, int l);

void flag_spherbessel_basis(double *jell, const int ell, const double *nodes, int Nnodes);


#endif