New families of higher order iterative methods for solving equations

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

In this paper, several one-parameter families of root-finding algorithms that have higher order convergence to simple and/or multiple roots have been derived. Specifically, the rth root iterations for simple and multiple zeros are analyzed. The rth root iteration family is an infinite family of rth order methods for every positive integer r, and uses only the first r - 1 derivatives. This family includes Newton's method and the square root iteration as the first and second member, respectively. In addition, this work provides analyses and generalizations of Halley's and Laguerre's iterations, and develops a procedure of deriving higher order methods of any desired order. Many important properties of the rth root iteration family and its variants are established. Some of these variants maintain a high order of convergence for multiple roots whether the multiplicity is known or not. Based on individual methods, disks containing at least one zero are derived.

Original languageEnglish (US)
Title of host publicationProceedings of the 45th IEEE Conference on Decision and Control 2006, CDC
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages6379-6384
Number of pages6
ISBN (Print)1424401712, 9781424401710
DOIs
StatePublished - 2006
Event45th IEEE Conference on Decision and Control 2006, CDC - San Diego, CA, United States
Duration: Dec 13 2006Dec 15 2006

Publication series

NameProceedings of the IEEE Conference on Decision and Control
ISSN (Print)0743-1546
ISSN (Electronic)2576-2370

Other

Other45th IEEE Conference on Decision and Control 2006, CDC
Country/TerritoryUnited States
CitySan Diego, CA
Period12/13/0612/15/06

Keywords

  • Halley's method
  • Hansen-patrick's family
  • Konig's family
  • Laguerre's method
  • Newton's method
  • Order of convergence
  • Root-finding
  • Schwartz derivative
  • Square root iteration
  • Zeros of analytic functions
  • Zeros of polynomials
  • rth root iterations

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