Module interpolation1d 

1D interpolation functionality for SparseIR

This module provides efficient 1D interpolation using Legendre polynomials with pre-computed collocation matrices.

Structs

Interpolate1D

1D interpolator with pre-computed Legendre polynomial coefficients

Functions

evaluate_interpolated_polynomial

Evaluate interpolated polynomial at point x using coefficient vector

evaluate_legendre_basis

Evaluate Legendre polynomial basis functions at point x

interpolate_1d_legendre

1D polynomial interpolation using Legendre collocation matrix

legendre_collocation_matrix

Create Legendre collocation matrix (inverse of Vandermonde matrix)