general elliptic functions
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21: 19.16 Definitions
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§19.16(i) Symmetric Integrals
… ►§19.16(ii)
… ►The -function is often used to make a unified statement of a property of several elliptic integrals. … ►For generalizations and further information, especially representation of the -function as a Dirichlet average, see Carlson (1977b). … ►§19.16(iii) Various Cases of
…22: 15.17 Mathematical Applications
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§15.17(ii) Conformal Mappings
… ►Hypergeometric functions, especially complete elliptic integrals, also play an important role in quasiconformal mapping. … ►Harmonic analysis can be developed for the Jacobi transform either as a generalization of the Fourier-cosine transform (§1.14(ii)) or as a specialization of a group Fourier transform. … ►Quadratic transformations give insight into the relation of elliptic integrals to the arithmetic-geometric mean (§19.22(ii)). …23: 23.7 Quarter Periods
24: Bibliography B
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Numerical calculation of elliptic integrals and elliptic functions. III.
Numer. Math. 13 (4), pp. 305–315.
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25: 23.22 Methods of Computation
§23.22 Methods of Computation
►§23.22(i) Function Values
… ►§23.22(ii) Lattice Calculations
… ►Then a pair of generators and can be chosen in an almost canonical way as follows. … ►If , then
23.22.2
There are 4 possible pairs (, ), corresponding to the 4 rotations of a square lattice. The lemniscatic case occurs when and .
26: 19.14 Reduction of General Elliptic Integrals
§19.14 Reduction of General Elliptic Integrals
… ►More generally in (19.14.4), … ►§19.14(ii) General Case
►Legendre (1825–1832) showed that every elliptic integral can be expressed in terms of the three integrals in (19.1.2) supplemented by algebraic, logarithmic, and trigonometric functions. …27: Software Index
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►‘✓’ indicates that a software package implements the functions in a section; ‘a’ indicates available functionality through optional or add-on packages; an empty space indicates no known support.
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►In the list below we identify four main sources of software for computing special functions.
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Commercial Software.
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►The following are web-based software repositories with significant holdings in the area of special functions.
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Open Source | With Book | Commercial | |||||||||||||||||||||||
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22 Jacobian Elliptic Functions | |||||||||||||||||||||||||
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Such software ranges from a collection of reusable software parts (e.g., a library) to fully functional interactive computing environments with an associated computing language. Such software is usually professionally developed, tested, and maintained to high standards. It is available for purchase, often with accompanying updates and consulting support.
28: Bibliography W
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Evaluating elliptic functions and their inverses.
Comput. Math. Appl. 39 (3-4), pp. 131–136.
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Infinitely differentiable generalized logarithmic and exponential functions.
Math. Comp. 57 (196), pp. 723–733.
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Elliptic Functions According to Eisenstein and Kronecker.
Classics in Mathematics, Springer-Verlag, Berlin.
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On a generalization of the functions
x, x, x, x.
Quart. J. Pure Appl. Math. 42, pp. 316–342.
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The asymptotic expansion of the generalized Bessel function.
Proc. London Math. Soc. (2) 38, pp. 257–270.
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