Some efficient seventh-order derivative-free families in root-finding

Autor: Fazlollah Soleymani
Jazyk: angličtina
Rok vydání: 2013
Předmět:
Zdroj: Opuscula Mathematica, Vol 33, Iss 1, Pp 163-173 (2013)
Druh dokumentu: article
ISSN: 1232-9274
DOI: 10.7494/OpMath.2013.33.1.163
Popis: The interest in efficient root-finding iterations is nowadays growing and influenced by the widespread use of high-speed computers. On the other hand, the calculation of derivatives is often hard, when the problems are formulated in terms of nonlinear equations and as a result, the importance of derivative-free methods emerges. For these reasons, some efficient three-step families of iterations for solving nonlinear equations are suggested, where the analytical proofs show their seventh-order error equations consuming only four function evaluations per iteration. We employ hard numerical test problems to illustrate the accuracy of the new methods from the families.
Databáze: Directory of Open Access Journals