LOCATIONS AND AMPLITUDES OF THE EXTREMA OF THE SIN X X FUNCTION/

Authors
LEBIHAN J
Citation
J. Lebihan, LOCATIONS AND AMPLITUDES OF THE EXTREMA OF THE SIN X X FUNCTION/, Circuits, systems, and signal processing, 16(2), 1997, pp. 241-245
Citations number
3
Categorie Soggetti
Engineering, Eletrical & Electronic
Journal title
Circuits, systems, and signal processing → ACNP
ISSN journal
0278081X
Volume
16
Issue
2
Year of publication
1997
Pages
241 - 245
Database
ISI
SICI code
0278-081X(1997)16:2<241:LAAOTE>2.0.ZU;2-T
Abstract
This paper addresses the calculation of the extrema of the sin x/x fun ction. First the Newton-Raphson method is used, which allows us to obt ain the extrema locations very fast through the use of a recursion for mula. Then a second approach is proposed, which gives the extrema loca tions and the extrema amplitudes in the form of series expansions. Sim ple, accurate algebraic expressions are derived.