backward%20recursion%20method
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11: 3.10 Continued Fractions
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Backward Recurrence Algorithm
… ►( is the backward difference operator.) … ►For further information on the preceding algorithms, including convergence in the complex plane and methods for accelerating convergence, see Blanch (1964) and Lorentzen and Waadeland (1992, Chapter 3). …12: Mathematical Introduction
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►In addition, there is a comprehensive account of the great variety of analytical methods that are used for deriving and applying the extremely important asymptotic properties of the special functions, including double asymptotic properties (Chapter 2 and §§10.41(iv), 10.41(v)).
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►All of the special function chapters contain sections that describe available methods for computing the main functions in the chapter, and most also provide references to numerical tables of, and approximations for, these functions.
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complex plane (excluding infinity). | |
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(or ) | backward difference operator: . (See also del operator in the Notations section.) |
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13: 18.40 Methods of Computation
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A numerical approach to the recursion coefficients and quadrature abscissas and weights
… ►and these can be used for the recursion coefficients …See Gautschi (1983) for examples of numerically stable and unstable use of the above recursion relations, and how one can then usefully differentiate between numerical results of low and high precision, as produced thereby. … ►Results of low ( to decimal digits) precision for are easily obtained for to . … ►where the coefficients are defined recursively via , and …14: Bibliography G
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Algorithm 726: ORTHPOL — a package of routines for generating orthogonal polynomials and Gauss-type quadrature rules.
ACM Trans. Math. Software 20 (1), pp. 21–62.
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Recursive computation of the repeated integrals of the error function.
Math. Comp. 15 (75), pp. 227–232.
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A note on the recursive calculation of incomplete gamma functions.
ACM Trans. Math. Software 25 (1), pp. 101–107.
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Algorithm 939: computation of the Marcum Q-function.
ACM Trans. Math. Softw. 40 (3), pp. 20:1–20:21.
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Mutual integrability, quadratic algebras, and dynamical symmetry.
Ann. Phys. 217 (1), pp. 1–20.
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15: Browsers
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16: 27.15 Chinese Remainder Theorem
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►Their product has 20 digits, twice the number of digits in the data.
…These numbers, in turn, are combined by the Chinese remainder theorem to obtain the final result , which is correct to 20 digits.
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►Details of a machine program describing the method together with typical numerical results can be found in Newman (1967).
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17: 8 Incomplete Gamma and Related
Functions
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18: 28 Mathieu Functions and Hill’s Equation
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