Results 21 to 30 of about 192,259 (166)

B-spline method for solving Bratu's problem

open access: yesInternational Journal of Computer Mathematics, 2010
In this paper, we propose a B-spline method for solving the one-dimensional Bratu's problem. The numerical approximations to the exact solution are computed and then compared with other existing methods. The effectiveness and accuracy of the B-spline method is verified for different values of the parameter, below its critical value, where two solutions
Valaristos, Antonios   +4 more
openaire   +2 more sources

Quasi-Newton Methods for Solving Nonlinear Programming Problems [PDF]

open access: yesComputer Science Journal of Moldova, 1996
In the present paper the problem of constrained equality optimization is reduced to sequential solving a series of problems of quadratic programming. The Hessian of the Lagrangian is approximated by a sequence of symmetric positive definite matrices. The
V.Moraru
doaj  

SYSTEMS AND METHODS FOR SOLVING PROBLEMS

open access: yesEuropean Science, 2022
The review considers existing methods of solving problems and systems implementing these processes. Examples of strict problem solving using equations obtained from first principles and tested by long-term practice are given.
Volodymyr Kuklin   +2 more
openaire   +1 more source

Two methods for solving electrostatic problems with azimuthal symmetry [PDF]

open access: yesRevista Brasileira de Ensino de Física
The study of electrostatic phenomena is the gateway to the physics described by Classical Electrodynamics. In this paper, we discuss in detail two methods based on the Uniqueness Theorem for solving electrostatic problems with azimuthal symmetry.
T.E.P. Bueno, U. Camara da Silva
doaj   +2 more sources

Enhanced Robust Univariate Classification Methods for Solving Outliers and Overfitting Problems

open access: yesJournal of ICT, 2023
The robustness of some classical univariate classifiers is hampered if the data are contaminated. Overfitting is another hiccup when the data sets are uncontaminated with a considerable sample size.
Friday Zinzendoff Okwonu   +4 more
doaj   +1 more source

Three-Step Projective Methods for Solving the Split Feasibility Problems

open access: yesMathematics, 2019
In this paper, we focus on studying the split feasibility problem (SFP) in Hilbert spaces. Based on the CQ algorithm involving the self-adaptive technique, we introduce a three-step iteration process for approximating the solution of SFP.
Suthep Suantai   +3 more
doaj   +1 more source

Numerical Methods for Solving Linear Time Varying Quadratic Optimal Control Problems

open access: yesResults in Control and Optimization, 2022
In this article, we discussed linear time varying optimal control problems with quadratic performance index, and approximated control variable, state variable and performance index. There are many different numerical processes for approximating of linear
Adane Akate Ayalew
doaj   +1 more source

Methods for Solving Linear Programming Problems Using Modern Computer Technologies

open access: yesЦифрова платформа: інформаційні технології в соціокультурній сфері, 2018
The purpose of the article is to improve the study of such software products, as systems of the automated engineering’s and economic calculations of Excel and MathCAD which are resulted the detailed decision of optimization task, as to one of major and ...
Iryna Ovcharuk, Volodymyr Ovcharuk
doaj   +1 more source

Alternative methods for solving nonlinear two-point boundary value problems

open access: yesOpen Physics, 2018
In this sequel, the numerical solution of nonlinear two-point boundary value problems (NTBVPs) for ordinary differential equations (ODEs) is found by Bezier curve method (BCM) and orthonormal Bernstein polynomials (OBPs). OBPs will be constructed by Gram-
Ghomanjani Fateme, Shateyi Stanford
doaj   +1 more source

Simple methods of engineering calculation for solving heat transfer problems

open access: yesMathematical Modelling and Analysis, 2003
There are well‐known numerical methods for solving the initial‐boundary value problems for partial differential equations. We mention only some of them: finite difference method (FDM), finite element method (FEM), boundary element method (BEM), Galerkin ...
H. Kalis, I. Kangro
doaj   +1 more source

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