Plm.hpp

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#ifndef _PLM_HPP_
#define _PLM_HPP_
 
#include <cmath>
 
#include "Nlm.hpp"
 
class Plm
{
    double *_Plm = nullptr;   // Fully-normalized ALFs
    double *_dPlm = nullptr;  // Fully-normalized ALFs co-latitude derivatives
    double *_ddPlm = nullptr; // Fully-normalized ALFs co-latitude 2nd order derivatives
    double theta;             // Co-latitude
    Nlm _Nlm;                 // Normalization constants
    int l_max;                // Maximum degree of ALFs
 
    int lm_idx(int l, int m);
 
public:
    Plm();
    Plm(int l_max, double theta, bool derivatives = false, bool second_derivatives = false);
 
    // Copy constructor
    Plm(const Plm &other);
 
    // Copy assignment operator
    Plm &operator=(const Plm &other);
 
    // Destructor
    ~Plm();
 
    double get_Plm_bar(int l, int m);
 
    double get_Plm(int l, int m);
 
    double get_dPlm_bar(int l, int m);
 
    double get_dPlm(int l, int m);
 
    double get_ddPlm_bar(int l, int m);
 
    double get_ddPlm(int l, int m);
 
    double get_theta() const;
};
 
#endif // _PLM_HPP_