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Mathematics of Computation
Mathematics of Computation
ISSN 1088-6842(online) ISSN 0025-5718(print)


A sinc approximation for the indefinite integral

Author: Ralph Baker Kearfott
Journal: Math. Comp. 41 (1983), 559-572
MSC: Primary 65D30; Secondary 41A99
MathSciNet review: 717703
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Abstract: A method for computing $ \smallint _0^xf(t)\;dt,x = (0,1)$ is outlined, where $ f(t)$ may have singularities at $ t = 0$ and $ t = 1$. The method depends on the approximation properties of Whittaker cardinal, or sinc function expansions; the general technique may be used for semi-infinite or infinite intervals in addition to (0,1). Tables of numerical results are given.

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PII: S 0025-5718(1983)0717703-X
Keywords: Indefinite integrals, singular integrals, quadrature, sine functions, Whittaker's cardinal function, approximation theory
Article copyright: © Copyright 1983 American Mathematical Society