Bessel


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Bes·sel

 (bĕs′əl), Friedrich Wilhelm 1784-1846.
Prussian astronomer who recalculated the orbit of Halley's comet (1804), used parallax to measure the distance from Earth to the twin star 61 Cygni (1838), and developed a class of mathematical functions based on his study of planetary perturbation.

Bessel

(ˈbɛsəl)
n
(Biography) Friedrich Wilhelm (ˈfriːdrɪç ˈvɪlhɛlm). 1784–1846, German astronomer and mathematician. He made the first authenticated measurement of a star's distance (1841) and systematized a series of mathematical functions used in physics
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Noun1.Bessel - German mathematician and astronomer who made accurate measurements of stellar distances and who predicted the existence on an 8th planet (1784-1846)
References in periodicals archive ?
1) If [upsilon] [not equal to] n, n [member of] N, then the general solution of the Bessel ODE is
1) is easily solved using Bessel functions, see the references above; for completeness we give this solution in Appendix A.
It is very quiet, there is no noticeable odor that comes from it, and there is no emission," says Allen Bessel of Transition Science, which is planning to launch the technology in Canada.
n] (x) is Bessel function of the first kind of the order n and [Y.
Thanks for Sarah Breger's interview with Paul Bessel on the history of Freemasonry--it presents a model of how to have a dispassionate and informed discussion about an esoteric subject ("The True Story of Jews and Freemasons," January/February 2010).
Goia, Irina, Columbia University, Bessel and volatility-stabilized processes.
2]] refers to Bessel equation, the singularity type [2/x]-[[l(l + 1)]/[x.
What makes this book essential reading is the compelling way in which Bessel interweaves the history from below with the history from above.
Since the modified Bessel functions are exponentially suppressed at infinity, the only contribution comes from the lower limit
alpha]/2] and [b'1-[alpha]/2] obtained from the scaled Bessel distribution for a two-sided size-[alpha] test using [[?
AAAI Life Member Thorsten Bernd Karl Joachims (Cornell University) has been elected the recipient of a Fraunhofer Bessel Research Award.
As a general example, modified expansions for confluent hypergeometric functions are considered in Section 3, and as particular cases expansions for the incomplete gamma function [GAMMA](a, z) and the modified Bessel function [K.