Almost optimal points for rational interpolation with prescribed poles, and rational Gauss-Chebyshev quadrature


This matlab program computes the nodes and weights in rational Gauss-Chebyshev quadrature formulas. Under certain conditions on the poles, these nodes are almost optimal points for rational interpolation with prescribed poles (in the same sense that Chebyshev points are almost optimal for polynomial interpolation)

References

The matlab programe can be downloaded here.


Contact

Joris Van Deun Karl Deckers Adhemar Bultheel
Research Engineer Materialise    UFR de Mathématiques, U. Lille 1    K.U.Leuven, Dept. Computer Science   
Technologielaan 15 Batiment M3 - Bureau 218 B Celestijnenlaan 200A
B-3001 Leuven F-59655 Villeneuve d'Ascq CEDEX   B-3001 Leuven
Joris.Vandeun ’a’ hotmail.com Karl.Deckers ’a’ math.univ-lille1.fr Adhemar.Bultheel ’a’ cs.kuleuven.be
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