Publisher review:Barycentric Lagrange Interpolating Polynomials and Lebesgue Constant computes lagrange interpolating polynomials and Lebesgue function/constant. The first script, barylag.m, performs a barycentric lagrange interpolation on a for a set of given data. This approach follows from a paper by L. N. Trefethen (ref inside script comments), and is much faster than the previous script.
Additionally, it has been vectorized to improve computation time even more. The second script, lebesgue.m is for computing the lebesgue function and constant for a set of nodes. If you want to interpolate data using barylag but are using some unusual set of nodes, use the second script to check the lebesgue constant ensure good numerical conditioning. Requirements: ยท MATLAB Release: R12.1
Barycentric Lagrange Interpolating Polynomials is a Matlab script for Mathematics scripts design by Greg von Winckel.
It runs on following operating system: Windows / Linux / Mac OS / BSD / Solaris.
Operating system:Windows / Linux / Mac OS / BSD / Solaris
Barycentric Lagrange Interpolating Polynomials script details 
