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21: 27.4 Euler Products and Dirichlet Series
§27.4 Euler Products and Dirichlet Series
… ►if the series on the left is absolutely convergent. … ►Euler products are used to find series that generate many functions of multiplicative number theory. … ►The Riemann zeta function is the prototype of series of the form …called Dirichlet series with coefficients . …22: 1.8 Fourier Series
23: 28.19 Expansions in Series of Functions
§28.19 Expansions in Series of Functions
… ►The series (28.19.2) converges absolutely and uniformly on compact subsets within . …24: 28.30 Expansions in Series of Eigenfunctions
§28.30 Expansions in Series of Eigenfunctions
… ►Then every continuous -periodic function whose second derivative is square-integrable over the interval can be expanded in a uniformly and absolutely convergent series …25: 5.7 Series Expansions
§5.7 Series Expansions
►§5.7(i) Maclaurin and Taylor Series
… ►For 15D numerical values of see Abramowitz and Stegun (1964, p. 256), and for 31D values see Wrench (1968). … ►For 20D numerical values of the coefficients of the Maclaurin series for see Luke (1969b, p. 299). ►§5.7(ii) Other Series
…26: 8.7 Series Expansions
§8.7 Series Expansions
… ►
8.7.6
, .
►For an expansion for in series of Bessel functions that converges rapidly when and () is small or moderate in magnitude see Barakat (1961).
27: 22.10 Maclaurin Series
28: 9.19 Approximations
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§9.19(ii) Expansions in Chebyshev Series
… ►The constants and are chosen numerically, with a view to equalizing the effort required for summing the series. … ►Corless et al. (1992) describe a method of approximation based on subdividing into a triangular mesh, with values of , stored at the nodes. and are then computed from Taylor-series expansions centered at one of the nearest nodes. The Taylor coefficients are generated by recursion, starting from the stored values of , at the node. Similarly for , .
MacLeod (1994) supplies Chebyshev-series expansions to cover for and for . The Chebyshev coefficients are given to 20D.
29: 16.25 Methods of Computation
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►Methods for computing the functions of the present chapter include power series, asymptotic expansions, integral representations, differential equations, and recurrence relations.
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