Clenshaw–Curtis formula (extended)
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21—30 of 289 matching pages
21: 5.23 Approximations
22: 18.40 Methods of Computation
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►For applications in which the OP’s appear only as terms in series expansions (compare §18.18(i)) the need to compute them can be avoided altogether by use instead of Clenshaw’s algorithm (§3.11(ii)) and its straightforward generalization to OP’s other than Chebyshev.
For further information see Clenshaw (1955), Gautschi (2004, §§2.1, 8.1), and Mason and Handscomb (2003, §2.4).
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23: 33.24 Tables
24: 6.20 Approximations
25: Bibliography L
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Numerical evaluation of integrals containing a spherical Bessel function by product integration.
J. Math. Phys. 22 (7), pp. 1399–1413.
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Algorithm 567: Extended-range arithmetic and normalized Legendre polynomials [A1], [C1].
ACM Trans. Math. Software 7 (1), pp. 141–146.
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26: 25.18 Methods of Computation
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►The principal tools for computing are the expansion (25.2.9) for general values of , and the Riemann–Siegel formula (25.10.3) (extended to higher terms) for .
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27: 33.13 Complex Variable and Parameters
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►The functions , , and may be extended to noninteger values of by generalizing , and supplementing (33.6.5) by a formula derived from (33.2.8) with expanded via (13.2.42).
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28: 3.1 Arithmetics and Error Measures
29: 22.20 Methods of Computation
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►This formula for becomes unstable near .
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►For additional information on methods of computation for the Jacobi and related functions, see the introductory sections in the following books: Lawden (1989), Curtis (1964b), Milne-Thomson (1950), and Spenceley and Spenceley (1947).
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30: Frank W. J. Olver
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►Olver joined NIST in 1961 after having been recruited by Milton Abramowitz to be the author of the Chapter “Bessel Functions of Integer Order” in the Handbook of Mathematical Functions with Formulas, Graphs, and Mathematical Tables, a publication which went on to become the most widely distributed and most highly cited publication in NIST’s history.
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►Fitting capstones to Olver’s long career, these works are on track to extend the legacy of the classic Abramowitz and Stegun handbook well into the 21st century.
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