Results 11 to 20 of about 15,083 (198)

Novel Analytical and Numerical Approximations to the Forced Damped Parametric Driven Pendulum Oscillator: Chebyshev Collocation Method

open access: yesJournal of Mathematics, 2022
In this work, some novel approximate analytical and numerical solutions to the forced damped driven nonlinear (FDDN) pendulum equation and some relation equations of motion on the pivot vertically for arbitrary angles are obtained.
M.R. Alharthi   +3 more
doaj   +1 more source

The Information Bottleneck’s Ordinary Differential Equation: First-Order Root Tracking for the Information Bottleneck

open access: yesEntropy, 2023
The Information Bottleneck (IB) is a method of lossy compression of relevant information. Its rate-distortion (RD) curve describes the fundamental tradeoff between input compression and the preservation of relevant information embedded in the input ...
Shlomi Agmon
doaj   +1 more source

Numerical Scheme based on Non-polynomial Spline Functions for ‎the System of Second Order Boundary Value Problems arising in ‎Various Engineering Applications [PDF]

open access: yesJournal of Applied and Computational Mechanics, 2022
Several applications of computational science and engineering, including population dynamics, optimal control, and physics, reduce to the study of a system of second-order boundary value problems.
Anju Chaurasia   +2 more
doaj   +1 more source

Analytical and Numerical Monotonicity Analyses for Discrete Delta Fractional Operators

open access: yesMathematics, 2022
In this paper, first, we intend to determine the relationship between the sign of Δc0βy(c0+1), for 10 (the monotonicity of y), where Δc0βy(z) will be assumed to be negative for each z∈Nc0T:={c0,c0+1,c0+2,⋯,T} and some T∈Nc0:={c0,c0+1,c0+2,⋯}.
Kamsing Nonlaopon   +5 more
doaj   +1 more source

Explicit Solution of First-Order Differential Equation Using Aitken’s and Newton’s Interpolation Methods

open access: yesEurasian Journal of Science and Engineering, 2023
The struggle to find the analytic solution of several differential equations leads to several issues like difficulty in finding solutions, singularities, convergent issues, and stability.
Salisu Ibrahim
doaj   +1 more source

Highly Efficient Numerical Algorithm for Nonlinear Space Variable-Order Fractional Reaction–Diffusion Models

open access: yesFractal and Fractional, 2023
In this paper, we present a new highly efficient numerical algorithm for nonlinear variable-order space fractional reaction–diffusion equations. The algorithm is based on a new method developed by using the Gaussian quadrature pole rational approximation.
Muhammad Yousuf, Shahzad Sarwar
doaj   +1 more source

Approaches to enthalpy approximation in numerical simulation of two-component alloy solidification

open access: yesComputer Assisted Methods in Engineering and Science, 2023
The paper deals with the numerical modelling of solidification of two- component metal alloys. The numerical model was worked out using the enthalpy formulation of solidification and the finite element method.
Norbert Sczygiol
doaj  

Novel Approximations to the (Un)forced Pendulum–Cart System: Ansatz and KBM Methods

open access: yesMathematics, 2022
In the present investigation, some novel analytical approximations to both unforced and forced pendulum–cart system oscillators are obtained. In our investigation, two accurate and effective approaches, namely, the ansatz method with equilibrium point ...
Weaam Alhejaili   +2 more
doaj   +1 more source

Numerical Approximation of Some Infinite Gaussian Series and Integrals

open access: yesNonlinear Analysis, 2008
The paper deals with numerical computation of the asymptotic variance of the so-called increment ratio (IR) statistic and its modifications. The IR statistic is useful for estimation and hypothesis testing on fractional parameter H ∈ (0, 1) of random ...
M. Stoncelis, M. Vaičiulis
doaj   +1 more source

On numerical stability of continued fractions

open access: yesМатематичні Студії
The paper considers the numerical stability of the backward recurrence algorithm (BR-algorithm) for computing approximants of the continued fraction with complex elements.
V. Hladun   +3 more
doaj   +1 more source

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