ginger-cpp/autocorr_8hpp_source.html

#pragma once


#include <utility>

#include <vector>


#include "rootfinding.hpp"


extern auto initial_autocorr(const std::vector<double>& coeffs) -> std::vector<Vec2>;


extern auto pbairstow_autocorr_st(const std::vector<double>& coeffs, std::vector<Vec2>& vrs,

                                  const ginger::Options& options) -> std::pair<unsigned int, bool>;


inline auto pbairstow_autocorr(const std::vector<double>& coeffs, std::vector<Vec2>& vrs,

                               const ginger::Options& options) -> std::pair<unsigned int, bool> {

    return pbairstow_autocorr_st(coeffs, vrs, options);

}


extern void extract_autocorr(Vec2& vr);


extern auto poly_from_autocorr_factors(const std::vector<Vec2>& vrs) -> std::vector<double>;

make_vdc_table
constexpr auto make_vdc_table() -> std::array< double, N >
Helper to generate a constexpr table of VdCorput<Base> values.
Definition aberth.hpp:21

pbairstow_autocorr_st
auto pbairstow_autocorr_st(const std::vector< double > &coeffs, std::vector< Vec2 > &vrs, const ginger::Options &options) -> std::pair< unsigned int, bool >
Single-threading Bairstow's method (specific for auto-correlation function)

extract_autocorr
void extract_autocorr(Vec2 &vr)
Extract autocorrelation quadratic factor.

poly_from_autocorr_factors
auto poly_from_autocorr_factors(const std::vector< Vec2 > &vrs) -> std::vector< double >
Reconstruct a monic polynomial from its autocorrelation quadratic factors.

pbairstow_autocorr
auto pbairstow_autocorr(const std::vector< double > &coeffs, std::vector< Vec2 > &vrs, const ginger::Options &options) -> std::pair< unsigned int, bool >
Definition autocorr.hpp:65

initial_autocorr
auto initial_autocorr(const std::vector< double > &coeffs) -> std::vector< Vec2 >
Initial guess for the parallel Bairstow method (specific for auto-correlation function)

ginger::Options
Definition config.hpp:19

ginger::Vector2
Vector2.
Definition vector2.hpp:19

rootfinding.hpp
Parallel Bairstow root-finding methods for real polynomials.