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Bessel (version 0.7-0)
Computations and Approximations for Bessel Functions
Description
Computations for Bessel function for complex, real and partly 'mpfr' (arbitrary precision) numbers; notably interfacing TOMS 644; approximations for large arguments, experiments, etc.
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Version
Version
0.7-0
0.6-1
0.6-0
0.5-5
0.5-4
0.5-3
Install
install.packages('Bessel')
Monthly Downloads
22,798
Version
0.7-0
License
GPL (>= 2)
Maintainer
Martin Maechler
Last Published
January 11th, 2026
Functions in Bessel (0.7-0)
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besselI.nuAsym
Asymptotic Expansion of Bessel I(x,nu) and K(x,nu) for Large nu (and x)
bI
Bessel I() function Simple Series Representation
besselIasym
Asymptotic Expansion of Bessel I(x,nu) and K(x,nu) For Large x
Airy
Airy Functions (and Their First Derivative)
besselJs
Bessel J() function Simple Series Representation
BesselH
Hankel (H-Bessel) Function (of Complex Argument)
bessJsmlNu
Bessel \(J_\nu(x)\) for Very Small Order \(\nu\)
Bessel
Bessel Functions of Complex Arguments I(), J(), K(), and Y()