Abstract
For various grids on a finite interval we measure the accurarcy of pseudospectral (collocation) differentiation matrices using two parameters. The first one is the rank defficiency of the differentation matrices. The second one quantifies the extent at which such matrices transform a constant vector into the null vector.
Authors
C.I. Gheorghiu
Tiberiu Popoviciu Institute of Numerical Analysis
Tiberiu Popoviciu Institute of Numerical Analysis
Keywords
pseudospectral differentiation; Chebyshev-Gauss-Lobatto grid; Legendre grid; equidistant grid; accuracy; floating-point arithmetic
References
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Paper coordinates
C.I. Gheorghiu, On the accuracy of pseudospectral differentiation, ROMAI J., 10 (2014) no. 1, pp. 55-62.
About this paper
Journal
ROMAI J.
Publisher Name
Paper on journal website
Print ISSN
2065-7714
Online ISSN
1841-5512
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