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Mathematics of Computation

Published by the American Mathematical Society since 1960 (published as Mathematical Tables and other Aids to Computation 1943-1959), Mathematics of Computation is devoted to research articles of the highest quality in computational mathematics.

ISSN 1088-6842 (online) ISSN 0025-5718 (print)

The 2020 MCQ for Mathematics of Computation is 1.78.

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Rational Chebyshev approximations for the Bickley functions $Ki_{n}(x)$
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by J. M. Blair, C. A. Edwards and J. H. Johnson PDF
Math. Comp. 32 (1978), 876-886 Request permission

Corrigendum: Math. Comp. 38 (1982), 657.

Abstract:

This report presents near-minimax rational approximations for the Bickley functions $K{i_1}(x)$ for $x \geqslant 0, K{i_2}(x)$ and $K{i_3}(x)$ for $0 \leqslant x \leqslant 6$, and $K{i_8}(x)$, $K{i_9}(x)$ and $K{i_{10}}(x)$ for $x \geqslant 6$, with relative errors ranging down to ${10^{ - 23}}$. The approximations, combined with the recurrence relation, yield a stable method of computing $K{i_n}(x)$, $n = 1,2, \ldots ,10$, for the complete range of the argument.
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Additional Information
  • © Copyright 1978 American Mathematical Society
  • Journal: Math. Comp. 32 (1978), 876-886
  • MSC: Primary 65D20
  • DOI: https://doi.org/10.1090/S0025-5718-1978-0471262-6
  • MathSciNet review: 0471262