Title :
Approximation errors in the computation of Chebyshev expansion coefficients
Author :
Lepschy, A. ; Mian, Gian ; Viaro, Umberto
Author_Institution :
University of Padova, Istituto di Elettrotecnica e di Elettronica, Padova, Italy
Abstract :
Exact and approximate formulas for computing the Chebyshev expansion coefficients of a rational function are analysed. A simple expression is then given for evaluating the approximation errors of a classic numerical quadrature formula.
Keywords :
Chebyshev approximation; error analysis; Chebyshev expansion coefficients; approximation errors; classic numerical quadrature formula; error analysis; rotational function;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19850294
