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31: Guide to Searching the DLMF
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Table 1: Query Examples
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►Wildcards allow matching patterns and marking parts of an expression that don’t matter (as for example, which variable name the author uses for a function):
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►You can use in math queries all the symbols and commands defined in LaTeX (you can omit the ), and some additional convenient ones, as well as the special functions’ names:
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►The syntax of the special functions can be LaTeX-like or as employed in widely used computer algebra systems.
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►DLMF search is generally case-insensitive except when it is important to be case-sensitive, as when two different special functions have the same standard names but one name has a lower-case initial and the other is has an upper-case initial, such as si and Si, gamma and Gamma.
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Query | Matching records contain |
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J_n@(z)= |
the math fragment , emphasizing more that is a function. |
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32: 29.20 Methods of Computation
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►The eigenvalues , , and the Lamé functions
, , can be calculated by direct numerical methods applied to the differential equation (29.2.1); see §3.7.
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►A third method is to approximate eigenvalues and Fourier coefficients of Lamé functions by eigenvalues and eigenvectors of finite matrices using the methods of §§3.2(vi) and 3.8(iv).
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33: Bibliography E
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Interlacing properties of the zeros of Bessel functions.
Atti Sem. Mat. Fis. Univ. Modena XLII (2), pp. 525–529.
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The zeros of the complementary error function.
Numer. Algorithms 49 (1-4), pp. 153–157.
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On Lamé functions.
Philos. Mag. (7) 31, pp. 123–130.
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On algebraic Lamé functions.
Philos. Mag. (7) 32, pp. 348–350.
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Integral equations for Heun functions.
Quart. J. Math., Oxford Ser. 13, pp. 107–112.
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34: 28.19 Expansions in Series of Functions
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►Let be a normal value (§28.12(i)) with respect to , and be a function that is analytic on a doubly-infinite open strip that contains the real axis.
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28.19.1
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28.19.3
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35: Sidebar 21.SB2: A two-phase solution of the Kadomtsev–Petviashvili equation (21.9.3)
36: 4.40 Integrals
37: 11.1 Special Notation
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►The 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
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38: 8.2 Definitions and Basic Properties
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►The general values of the incomplete gamma functions
and are defined by
…However, when the integration paths do not cross the negative real axis, and in the case of (8.2.2) exclude the origin, and take their principal values; compare §4.2(i).
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8.2.5
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►The function
is entire in and .
When , is an entire function of , and is meromorphic with simple poles at , , with residue .
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39: 5.12 Beta Function
40: 8.23 Statistical Applications
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►The functions
and are used extensively in statistics as the probability integrals of the gamma distribution; see Johnson et al. (1994, pp. 337–414).
…The function
and its normalization play a similar role in statistics in connection with the beta distribution; see Johnson et al. (1995, pp. 210–275).
In queueing theory the Erlang loss function is used, which can be expressed in terms of the reciprocal of ; see Jagerman (1974) and Cooper (1981, pp. 80, 316–319).
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