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Zhurnal Vychislitel'noi Matematiki i Matematicheskoi Fiziki, 2008, Volume 48, Number 7, Pages 1181–1186
(Mi zvmmf4558)
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This article is cited in 3 scientific papers (total in 3 papers)
Determining the multiplicity of a root of a nonlinear algebraic equation
N. N. Kalitkina, I. P. Poshivaylob a Institute of Mathematical Modeling, Russian Academy of Sciences, Miusskaya pl. 4a, Moscow, 125047, Russia
b Moscow State Institute of Electronic Engineering (Technical University), Zelenograd, Moscow, 124498, Russia
Abstract:
Newton's method is most frequently used to find the roots of a nonlinear algebraic equation. The convergence domain of Newton's method can be expanded by applying a generalization known as the continuous analogue of Newton's method. For the classical and generalized Newton methods, an effective root-finding technique is proposed that simultaneously determines root multiplicity. Roots of high multiplicity (up to 10) can be calculated with a small error. The technique is illustrated using numerical examples.
Key words:
nonlinear algebraic equation, numerical root finding, root multiplicity determination, generalized Newton method.
Received: 30.03.2007 Revised: 29.01.2008
Citation:
N. N. Kalitkin, I. P. Poshivaylo, “Determining the multiplicity of a root of a nonlinear algebraic equation”, Zh. Vychisl. Mat. Mat. Fiz., 48:7 (2008), 1181–1186; Comput. Math. Math. Phys., 48:7 (2008), 1113–1118
Linking options:
https://www.mathnet.ru/eng/zvmmf4558 https://www.mathnet.ru/eng/zvmmf/v48/i7/p1181
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