chebyshev.hpp

#include <nda/nda.hpp>
#include <cmath>
#include <numbers>

Detailed Description

Provides utilities for Chebyshev polynomial computations.

Definition in file chebyshev.hpp.

Go to the source code of this file.

Functions
nda::vector< double >	triqs::utility::chebyshev_barycentric_weights (long N)
	Compute barycentric weights for Chebyshev points of the first kind.
nda::vector< double >	triqs::utility::chebyshev_points (long N)
	Compute Chebyshev points of the first kind on the interval \( [-1, 1] \).
double	triqs::utility::from_standard_interval (double x, double a, double b)
	Scale a value from the standard interval \( [-1, 1] \) to interval \( [a, b] \).
double	triqs::utility::to_standard_interval (double x, double a, double b)
	Scale a value from interval \( [a, b] \) to the standard interval \( [-1, 1] \).