acceleration%20of%20convergence
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1: 3.8 Nonlinear Equations
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►The rule converges locally and is cubically convergent.
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►Consider and .
We have and .
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►The convergence of iterative methods
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2: 3.9 Acceleration of Convergence
§3.9 Acceleration of Convergence
… ► ►The transformation is accelerating if it is limit-preserving and if … ►This transformation is accelerating if is a linearly convergent sequence, i. … ►For applications to asymptotic expansions, see §2.11(vi), Olver (1997b, pp. 540–543), and Weniger (1989, 2003).3: 17.18 Methods of Computation
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►Method (1) is applicable within the circles of convergence of the defining series, although it is often cumbersome owing to slowness of convergence and/or severe cancellation.
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►Method (1) can sometimes be improved by application of convergence acceleration procedures; see §3.9.
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4: 20 Theta Functions
Chapter 20 Theta Functions
…5: 18.40 Methods of Computation
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►These quadrature weights and abscissas will then allow construction of a convergent sequence of approximations to , as will be considered in the following paragraphs.
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►Results of low ( to decimal digits) precision for are easily obtained for to .
Gautschi (2004, p. 119–120) has explored the limit via the Wynn -algorithm, (3.9.11) to accelerate convergence, finding four to eight digits of precision in , depending smoothly on , for , for an example involving first numerator Legendre OP’s.
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►Convergence is .
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►Further, exponential convergence in , via the Derivative Rule, rather than the power-law convergence of the histogram methods, is found for the inversion of Gegenbauer, Attractive, as well as Repulsive, Coulomb–Pollaczek, and Hermite weights and zeros to approximate for these OP systems on and respectively, Reinhardt (2018), and Reinhardt (2021b), Reinhardt (2021a).
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6: Bibliography
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Exact linearization of a Painlevé transcendent.
Phys. Rev. Lett. 38 (20), pp. 1103–1106.
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On the degrees of irreducible factors of higher order Bernoulli polynomials.
Acta Arith. 62 (4), pp. 329–342.
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Study of nuclear structure by electromagnetic excitation with accelerated ions.
Rev. Mod. Phys. 28, pp. 432–542.
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Repeated integrals and derivatives of Bessel functions.
SIAM J. Math. Anal. 20 (1), pp. 169–175.
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Shanks’ convergence acceleration transform, Padé approximants and partitions.
J. Combin. Theory Ser. A 43 (1), pp. 70–84.
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7: Bibliography W
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The Nahm equations, finite-gap potentials and Lamé functions.
J. Phys. A 20 (10), pp. 2679–2683.
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Nonlinear sequence transformations for the acceleration of convergence and the summation of divergent series.
Computer Physics Reports 10 (5-6), pp. 189–371.
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8: 15.19 Methods of Computation
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►The Gauss series (15.2.1) converges for .
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►However, by appropriate choice of the constant in (15.15.1) we can obtain an infinite series that converges on a disk containing .
Moreover, it is also possible to accelerate convergence by appropriate choice of .
►Large values of or , for example, delay convergence of the Gauss series, and may also lead to severe cancellation.
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9: 8 Incomplete Gamma and Related
Functions
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10: 28 Mathieu Functions and Hill’s Equation
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