Mobius inversion formulas
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21: 4.47 Approximations
§4.47 Approximations
►§4.47(i) Chebyshev-Series Expansions
►Clenshaw (1962) and Luke (1975, Chapter 3) give 20D coefficients for , , , , , , , , . … ►Hart et al. (1968) give , , , , , , , , , , , , , . … ►Luke (1975, Chapter 3) supplies real and complex approximations for , , , , , , . …22: 4.29 Graphics
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§4.29(i) Real Arguments
… ► … ► … ►§4.29(ii) Complex Arguments
… ►The surfaces for the complex hyperbolic and inverse hyperbolic functions are similar to the surfaces depicted in §4.15(iii) for the trigonometric and inverse trigonometric functions. …23: 19.11 Addition Theorems
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§19.11(i) General Formulas
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19.11.5
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19.11.6_5
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§19.11(iii) Duplication Formulas
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19.11.16
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24: 4.1 Special Notation
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►The main purpose of the present chapter is to extend these definitions and properties to complex arguments .
►The main functions treated in this chapter are the logarithm , ; the exponential , ; the circular trigonometric (or just trigonometric) functions , , , , , ; the inverse trigonometric functions , , etc.
; the hyperbolic trigonometric (or just hyperbolic) functions , , , , , ; the inverse hyperbolic functions , , etc.
►Sometimes in the literature the meanings of and are interchanged; similarly for and , etc.
… for and for .
25: 20.11 Generalizations and Analogs
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►If both are positive, then allows inversion of its arguments as a modular transformation (compare (23.15.3) and (23.15.4)):
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►This is Jacobi’s inversion problem of §20.9(ii).
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►Each provides an extension of Jacobi’s inversion problem.
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►Such sets of twelve equations include derivatives, differential equations, bisection relations, duplication relations, addition formulas (including new ones for theta functions), and pseudo-addition formulas.
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26: 19.26 Addition Theorems
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§19.26(i) General Formulas
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19.26.11
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§19.26(iii) Duplication Formulas
… ►The equations inverse to and the two other equations obtained by permuting (see (19.26.19)) are … ►
19.26.25
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27: 22.21 Tables
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►Spenceley and Spenceley (1947) tabulates , , , , for and to 12D, or 12 decimals of a radian in the case of .
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►Tables of theta functions (§20.15) can also be used to compute the twelve Jacobian elliptic functions by application of the quotient formulas given in §22.2.
28: 6.14 Integrals
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6.14.3
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29: 6.18 Methods of Computation
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►For large and , expansions in inverse factorial series (§6.10(i)) or asymptotic expansions (§6.12) are available.
…Also, other ranges of can be covered by use of the continuation formulas of §6.4.
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►For example, the Gauss–Laguerre formula (§3.5(v)) can be applied to (6.2.2); see Todd (1954) and Tseng and Lee (1998).
For an application of the Gauss–Legendre formula (§3.5(v)) see Tooper and Mark (1968).
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30: Bibliography I
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Centre for Experimental and Constructive Mathematics, Simon Fraser University, Canada.
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The method of isomonodromic deformations and relation formulas for the second Painlevé transcendent.
Izv. Akad. Nauk SSSR Ser. Mat. 51 (4), pp. 878–892, 912 (Russian).
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Connection formulae for the fourth Painlevé transcendent; Clarkson-McLeod solution.
J. Phys. A 31 (17), pp. 4073–4113.
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