Weber%E2%80%93Schafheitlin%20discontinuous%20integrals
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11: 10.15 Derivatives with Respect to Order
12: 11.15 Approximations
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Luke (1975, pp. 416–421) gives Chebyshev-series expansions for , , , and , , for ; , , , and , , ; the coefficients are to 20D.
Newman (1984) gives polynomial approximations for for , , and rational-fraction approximations for for , . The maximum errors do not exceed 1.2×10β»βΈ for the former and 2.5×10β»βΈ for the latter.
13: 10.2 Definitions
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Bessel Function of the Second Kind (Weber’s Function)
… βΊWhether or not is an integer has a branch point at . … βΊExcept in the case of , the principal branches of and are two-valued and discontinuous on the cut ; compare §4.2(i). βΊBoth and are real when is real and . βΊFor fixed each branch of is entire in . …14: 11.1 Special Notation
§11.1 Special Notation
… βΊFor the functions , , , , , and see §§10.2(ii), 10.25(ii). βΊThe functions treated in this chapter are the Struve functions and , the modified Struve functions and , the Lommel functions and , the Anger function , the Weber function , and the associated Anger–Weber function .15: Bibliography H
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The Laplace transform for expressions that contain a probability function.
Bul. Akad. Ε tiince RSS Moldoven. 1973 (2), pp. 78–80, 93 (Russian).
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Integrals containing the Fresnel functions and
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Bul. Akad. Ε tiince RSS Moldoven. 1975 (3), pp. 48–60, 93 (Russian).
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Integrals that contain a probability function of complicated arguments.
Bul. Akad. Ε tiince RSS Moldoven. 1976 (1), pp. 80–84, 96 (Russian).
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Some properties and applications of the repeated integrals of the error function.
Proc. Manchester Lit. Philos. Soc. 80, pp. 85–102.
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Diffraction and Weber functions.
SIAM J. Appl. Math. 57 (6), pp. 1702–1715.
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16: 6.2 Definitions and Interrelations
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§6.2(i) Exponential and Logarithmic Integrals
… βΊ … βΊThe logarithmic integral is defined by … βΊ§6.2(ii) Sine and Cosine Integrals
… βΊ …17: Bibliography
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Regular and irregular Coulomb wave functions expressed in terms of Bessel-Clifford functions.
J. Math. Physics 33, pp. 111–116.
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Algorithm 511: CDC 6600 subroutines IBESS and JBESS for Bessel functions and , ,
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ACM Trans. Math. Software 3 (1), pp. 93–95.
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Algorithm 683: A portable FORTRAN subroutine for exponential integrals of a complex argument.
ACM Trans. Math. Software 16 (2), pp. 178–182.
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Mathematical Methods for Physicists.
6th edition, Elsevier, Oxford.
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Quadratic differentials and asymptotics of Laguerre polynomials with varying complex parameters.
J. Math. Anal. Appl. 416 (1), pp. 52–80.
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18: 10.24 Functions of Imaginary Order
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βΊand , are linearly independent solutions of (10.24.1):
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βΊIn consequence of (10.24.6), when is large and comprise a numerically satisfactory pair of solutions of (10.24.1); compare §2.7(iv).
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βΊFor graphs of and see §10.3(iii).
βΊFor mathematical properties and applications of and , including zeros and uniform asymptotic expansions for large , see Dunster (1990a).
In this reference and are denoted respectively by and .
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19: 10.1 Special Notation
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βΊThe main functions treated in this chapter are the Bessel functions , ; Hankel functions , ; modified Bessel functions , ; spherical Bessel functions , , , ; modified spherical Bessel functions , , ; Kelvin functions , , , .
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βΊA common alternative notation for is .
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βΊFor older notations see British Association for the Advancement of Science (1937, pp. xix–xx) and Watson (1944, Chapters 1–3).