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Optimal efficiency indexes for iterative methods of interpolatory type [PDF]

open access: yesComputer Science Journal of Moldova, 1997
The paper is concerned with the order of convergence and the efficiency index of iterative methods of interpolatory type for solving scalar equations. Some classes of such methods are presented and then, using well defined criteria, the methods having ...
I. Pavaloiu
doaj   +1 more source

An Optimal Derivative Free Family of Chebyshev–Halley’s Method for Multiple Zeros

open access: yesMathematics, 2021
In this manuscript, we introduce the higher-order optimal derivative-free family of Chebyshev–Halley’s iterative technique to solve the nonlinear equation having the multiple roots. The designed scheme makes use of the weight function and one parameter α
Ramandeep Behl   +3 more
doaj   +1 more source

An Optimal Iteration Method for Strongly Nonlinear Oscillators [PDF]

open access: yesJournal of Applied Mathematics, 2012
We introduce a new method, namely, the Optimal Iteration Perturbation Method (OIPM), to solve nonlinear differential equations of oscillators with cubic and harmonic restoring force. We illustrate that OIPM is very effective and convenient and does not require linearization or small perturbation.
Vasile Marinca, Nicolae Herisanu
openaire   +3 more sources

Derivative-Free King’s Scheme for Multiple Zeros of Nonlinear Functions

open access: yesMathematics, 2021
There is no doubt that the fourth-order King’s family is one of the important ones among its counterparts. However, it has two major problems: the first one is the calculation of the first-order derivative; secondly, it has a linear order of convergence ...
Ramandeep Behl   +3 more
doaj   +1 more source

Derivative-Free Optimal Iterative Methods

open access: yesComputational Methods in Applied Mathematics, 2010
AbstractIn this study, we develop an optimal family of derivative-free iterative methods. Convergence analysis shows that the methods are fourth order convergent, which is also verified numerically. The methods require three functional evaluations during each iteration. Though the methods are independent of derivatives, computa-
Sanjay Kumar Khattri, Ravi P. Agarwal
openaire   +2 more sources

Two Optimal Eighth-Order Derivative-Free Classes of Iterative Methods

open access: yesAbstract and Applied Analysis, 2012
Optimization problems defined by (objective) functions for which derivatives are unavailable or available at an expensive cost are emerging in computational science.
F. Soleymani, S. Shateyi
doaj   +1 more source

On efficient iterative schemes for finding all solutions of non-linear engineering problems [PDF]

open access: yesComputational Algorithms and Numerical Dimensions
Nonlinear equations are important in engineering because they may simulate complicated real-world phenomena such as fluid dynamics, material stress, and electrical circuits, where linear assumptions fail.
Mudassir Shams, Nasreen Kausar
doaj   +1 more source

A Data-Driven Parameter Prediction Method for HSS-Type Methods

open access: yesMathematics, 2022
Some matrix-splitting iterative methods for solving systems of linear equations contain parameters that need to be specified in advance, and the choice of these parameters directly affects the efficiency of the corresponding iterative methods. This paper
Kai Jiang, Jianghao Su, Juan Zhang
doaj   +1 more source

Efficient iterative scheme for solving non-linear equations with engineering applications

open access: yesApplied Mathematics in Science and Engineering, 2022
A family of three-step optimal eighth-order iterative algorithm is developed in this paper in order to find single roots of nonlinear equations using the weight function technique.
Mudassir Shams   +3 more
doaj   +1 more source

State Space Model Predictive Control of a Multi Stage Electro-metallurgical Process [PDF]

open access: yesModeling, Identification and Control, 1989
The paper deals with the proposed application of a novel technique for Model Predictive Control to a multistage electrometallurgical process. The novel control technique is based upon high speed repetitive simulation of a non-linear state space model of ...
Jens G. Balchen   +2 more
doaj   +1 more source

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