relation to sine and cosine integrals
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21: 19.14 Reduction of General Elliptic Integrals
§19.14 Reduction of General Elliptic Integrals
… ►In (19.14.1)–(19.14.3) both the integrand and are assumed to be nonnegative. … ►The classical method of reducing (19.2.3) to Legendre’s integrals is described in many places, especially Erdélyi et al. (1953b, §13.5), Abramowitz and Stegun (1964, Chapter 17), and Labahn and Mutrie (1997, §3). …A similar remark applies to the transformations given in Erdélyi et al. (1953b, §13.5) and to the choice among explicit reductions in the extensive table of Byrd and Friedman (1971), in which one limit of integration is assumed to be a branch point of the integrand at which the integral converges. …22: Bibliography H
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Une -intégrale de Selberg et Askey.
SIAM J. Math. Anal. 19 (6), pp. 1475–1489.
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Certain integrals that contain a probability function.
Bul. Akad. Štiince RSS Moldoven. 1975 (2), pp. 86–88, 95 (Russian).
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Sums with cylindrical functions that reduce to the probability function and to related functions.
Bul. Akad. Shtiintse RSS Moldoven. 1978 (3), pp. 80–84, 95 (Russian).
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Elliptic Integrals.
Dover Publications Inc., New York.
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Spherical Bessel expansions of sine, cosine, and exponential integrals.
Appl. Numer. Math. 34 (1), pp. 95–98.
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23: Bibliography B
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Tables Relating to the Radial Mathieu Functions. Vol. 1: Functions of the First Kind.
U.S. Government Printing Office, Washington, D.C..
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Tables Relating to the Radial Mathieu Functions. Vol. 2: Functions of the Second Kind.
U.S. Government Printing Office, Washington, D.C..
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Discrete Cosine and Sine Transforms. General Properties, Fast Algorithms and Integer Approximations.
Elsevier/Academic Press, Amsterdam.
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Numerical calculation of the sine, cosine and Fresnel integrals.
Numer. Math. 9 (5), pp. 380–385.
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On a generalization of Barton’s integral and related integrals of complete elliptic integrals.
Math. Proc. Cambridge Philos. Soc. 101 (1), pp. 1–5.
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24: 19.2 Definitions
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§19.2(i) General Elliptic Integrals
… ►§19.2(ii) Legendre’s Integrals
… ►§19.2(iii) Bulirsch’s Integrals
… ►Lastly, corresponding to Legendre’s incomplete integral of the third kind we have … ►§19.2(iv) A Related Function:
…25: 1.8 Fourier Series
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►Here is related to
and in (1.8.1), (1.8.2) by , for and .
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►As
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►(1.8.10) continues to apply if either or or both are infinite and/or has finitely many singularities in , provided that the integral converges uniformly (§1.5(iv)) at , and the singularities for all sufficiently large .
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►Then the series (1.8.1) converges to the sum
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►It follows from definition (1.14.1) that the integral in (1.8.14) is equal to
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26: 14.19 Toroidal (or Ring) Functions
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►This form of the differential equation arises when Laplace’s equation is transformed into toroidal coordinates
, which are related to Cartesian coordinates by
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§14.19(iii) Integral Representations
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14.19.4
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14.19.5
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27: 22.20 Methods of Computation
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►and the inverse sine has its principal value (§4.23(ii)).
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►Four iterations of (22.20.1) lead to
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§22.20(vi) Related Functions
… ►Alternatively, Sala (1989) shows how to apply the arithmetic-geometric mean to compute . … ►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). …28: 36.13 Kelvin’s Ship-Wave Pattern
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►In a reference frame where the ship is at rest we use polar coordinates and with in the direction of the velocity of the water relative to the ship.
Then with denoting the acceleration due to gravity, the wave height is approximately given by
…The integral is of the form of the real part of (36.12.1) with , , , , and
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►When , that is, everywhere except close to the ship, the integrand oscillates rapidly.
…The wake is a caustic of the “rays” defined by the dispersion relation (“Hamiltonian”) giving the frequency as a function of wavevector :
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