for large ℜz
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11—20 of 132 matching pages
11: 13.9 Zeros
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►For fixed the large
-zeros of satisfy
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►For fixed and in the large
-zeros of are given by
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►For fixed and in the large
-zeros of are given by
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12: 4.38 Inverse Hyperbolic Functions: Further Properties
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4.38.1
.
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4.38.5
, .
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4.38.7
,
►which requires
to lie between the two rectangular hyperbolas given by
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4.38.13
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13: 11.6 Asymptotic Expansions
14: 11.11 Asymptotic Expansions of Anger–Weber Functions
15: 13.29 Methods of Computation
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►Although the Maclaurin series expansion (13.2.2) converges for all finite values of , it is cumbersome to use when is large owing to slowness of convergence and cancellation.
For large
the asymptotic expansions of §13.7 should be used instead.
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16: 6.18 Methods of Computation
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►For large
or these series suffer from slow convergence or cancellation (or both).
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►For large
and , expansions in inverse factorial series (§6.10(i)) or asymptotic expansions (§6.12) are available.
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, , and can be computed by Miller’s algorithm (§3.6(iii)), starting with initial values , say, where is an arbitrary large integer, and normalizing via .
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17: 13.8 Asymptotic Approximations for Large Parameters
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§13.8(i) Large , Fixed and
… ►When the foregoing results are combined with Kummer’s transformation (13.2.39), an approximation is obtained for the case when is large, and and are bounded. ►§13.8(ii) Large and , Fixed and
… ►For other asymptotic expansions for large and see López and Pagola (2010). … ►For generalizations in which is also allowed to be large see Temme and Veling (2022).18: 10.74 Methods of Computation
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►If or is large compared with , then the asymptotic expansions of §§10.17(i)–10.17(iv) are available.
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►Moreover, because of their double asymptotic properties (§10.41(v)) these expansions can also be used for large
or , whether or not is large.
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►And since there are no error terms they could, in theory, be used for all values of ; however, there may be severe cancellation when is not large compared with .
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19: 10.41 Asymptotic Expansions for Large Order
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10.41.4
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►The series (10.41.3)–(10.41.6) can also be regarded as generalized asymptotic expansions for large
.
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►To establish (10.41.12) we substitute into (10.34.3), with and replaced by , by means of (10.41.13) observing that when is large the effect of replacing by is to replace , , and by , , and , respectively.
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20: Bibliography W
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An asymptotic expansion of with large variable and parameters.
Math. Comp. 27 (122), pp. 429–436.
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