Results 31 to 40 of about 2,105 (196)

Crystallization of Random Trigonometric Polynomials [PDF]

open access: yesJournal of Statistical Physics, 2006
10 pages, 3 ...
Farmer, David W., Yerrington, Mark
openaire   +2 more sources

Periodic solutions for first-order cubic non-autonomous differential equation with bifurcation analysis

open access: yesJournal of Taibah University for Science, 2020
This article deals with the development of the number of periodic solutions for ordinary differential equations. We investigated focal values for first-order non-autonomous differential equation for periodic solutions from a fine focus $\mathfrak {z}=0 $.
Saima Akram   +4 more
doaj   +1 more source

First-year university students’ understanding of function concepts encountered in Grade 12 Mathematics: a case study

open access: yesPerspectives in Education, 2023
This article focuses on first-year university students’ understanding of concepts related to third-degree polynomial and trigonometric functions that they encountered during their study of Grade 12 mathematics.
Aneshkumar Maharaj
doaj   +1 more source

Nonperiodic Trigonometric Polynomial Approximation [PDF]

open access: yesJournal of Scientific Computing, 2013
The suitable basis functions for approximating periodic function are periodic, trigonometric functions. When the function is not periodic, a viable alternative is to consider polynomials as basis functions. In this paper we will point out the inadequacy of polynomial approximation and suggest to switch from powers of $x$ to powers of $\sin(px)$ where ...
openaire   +3 more sources

On polynomials with simple trigonometric formulas [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2004
We show that the sequences of polynomials with zeros cot(mπ/(n + 2)) and tan(mπ/(n + 2)) are not orthogonal sequences with respect to any integral inner product. We give an algebraic formula for these polynomials, that is simpler than the formula originally derived by Cvijovic and Klinowski (1998).
openaire   +2 more sources

Approximation of classes B^ω_p,θ of periodic functions of several variables by polynomials with spectrum from cubic areas (in Ukrainian) [PDF]

open access: yesМатематичні Студії, 2011
We have obtained exact order estimates for error of approximation of classes B^ω_p,θ of periodic functions of several variables by trigonometric polynomials with spectrum from cubic areas.
S. A. Stasyuk
doaj  

C2 quadratic trigonometric polynomial curves with local bias

open access: yes, 2005
Quadratic trigonometric polynomial curves with local bias are presented in this paper. The quadratic trigonometric polynomial curves have C2 continuity with a non-uniform knot vector and any value of the bias, while the quadratic B-spline curves have C1 ...
Han, Xuli
core   +1 more source

Backpropagation Through Soft Body: Investigating Information Processing in Brain–Body Coupling Systems

open access: yesAdvanced Robotics Research, EarlyView.
This study explores how information processing is distributed between brains and bodies through a codesign approach. Using the “backpropagation through soft body” framework, brain–body coupling agents are developed and analyzed across several tasks in which output is generated through the agents’ physical dynamics.
Hiroki Tomioka   +3 more
wiley   +1 more source

Universal centers in the cubic trigonometric Abel equation

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2014
We study the center problem for the trigonometric Abel equation $d \rho/ d \theta= a_1 (\theta) \rho^2 + a_2(\theta) \rho^3,$ where $a_1(\theta)$ and $a_2(\theta)$ are cubic trigonometric polynomials in $\theta$.
Jaume Giné   +2 more
doaj   +1 more source

New Drain Spacing Formulas Using the Variational Iteration Method

open access: yesIrrigation and Drainage, EarlyView.
ABSTRACT In this study, the drain spacing is computed using the variational iteration method (VIM) to the linearized Boussinesq equation. By applying at most two iterations of the VIM method under three different initial condition scenarios, three equations for drain spacing calculation were derived. These equations predict values of drain spacing that
George Kargas   +2 more
wiley   +1 more source

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