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Bessel (version 0.7-1)

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

Install

install.packages('Bessel')

Monthly Downloads

4,954

Version

0.7-1

License

GPL (>= 2)

Maintainer

Martin Maechler

Last Published

September 28th, 2026

Functions in Bessel (0.7-1)

Airy

Airy Functions (and Their First Derivative)
besselIasym

Asymptotic Expansion of Bessel I(x,nu) and K(x,nu) For Large x
bessJsmlNu

Bessel \(J_\nu(x)\) for Very Small Order \(\nu\)
besselJs

Bessel J() function Simple Series Representation
besselI.nuAsym

Asymptotic Expansion of Bessel I(x,nu) and K(x,nu) for Large nu (and x)
besselIs

Bessel I() function Simple Series Representation
Bessel

Bessel Functions of Complex Arguments I(), J(), K(), and Y()
BesselH

Hankel (H-Bessel) Function (of Complex Argument)
incompleteBesselK

The Incomplete Bessel K Function