Results 61 to 70 of about 39,512 (228)

Computational solutions of conformable space-time derivatives dynamical wave equations: Analytical mathematical techniques

open access: yesResults in Physics, 2020
In this article, the instigator sets up the profuse traveling wave solutions four types of fractional nonlinear equations in the sense of conformable derivatives by using the novel form of modified mathematical technique.
Asghar Ali   +2 more
doaj   +1 more source

Methods of smoothing applied to differences in star positions in observational catalogues [PDF]

open access: yesSerbian Astronomical Journal, 1998
Three different methods, Whittaker - Robinson - Vondrak (WRV), cubic spline (SPL) and Expansion of the Elementary Trigonometric and Exponential Functions (ETE), are applied to differences in star positions of five observational catalogues in ...
Popović N.
doaj   +1 more source

BKM: a new hardware algorithm for complex elementary functions [PDF]

open access: yes, 1994
A new algorithm for computing the complex logarithm and exponential functions is proposed. This algorithm is based on shift-and-add elementary steps, and it generalizes some algorithms by Briggs and De Lugish (1970), as well as the CORDIC algorithm.
Bajard, Jean-Claude   +2 more
core   +3 more sources

PID‐Like Robust Control of Non‐Minimum Phase Robotic Manipulators

open access: yesInternational Journal of Robust and Nonlinear Control, EarlyView.
ABSTRACT This paper proposes an output‐feedback tracking controller for non‐minimum phase nonlinear systems with unknown uncertainties and external disturbances, where not all states are measurable, and the zero dynamics are unstable. The approach combines a backstepping‐based stabilizing state‐feedback law with a cascade extended high‐gain observer ...
Mohammad Al Saaideh   +2 more
wiley   +1 more source

COMPARATIVE STUDY OF NONLINEAR ROOT FINDING USING IMPROVISED SECANT METHODS

open access: yesMalaysian Journal of Computing, 2023
he nonlinear transcendental or algebraic equation problem is one of the important research areas in numerical analysis, and the iterative methods are playing an important role to find approximate solutions.
Nurul Nabilah Rosli   +3 more
doaj   +1 more source

Interest Rate Pegs and the Reversal Puzzle: On the Role of Anticipation

open access: yesJournal of Money, Credit and Banking, EarlyView.
Abstract We revisit the reversal puzzle: a counterintuitive contraction of inflation in response to an interest rate peg. We show that its occurrence is intimately related to the degree of agents' anticipation. If agents perfectly anticipate the peg, reversals occur depending on the duration of the peg.
RAFAEL GERKE   +2 more
wiley   +1 more source

Comment on "New Methods for Old Coulomb Few-Body Problems"

open access: yes, 2005
In this Comment on the above mentioned paper by F. E. Harris, A. M. Frolov, and V. H. Smith, we briefly review our contributions to development of new methods for solution of the Coulomb four-body problem. We show that our research group, headed by Prof.
Frolov   +22 more
core   +1 more source

Function Art: Linking Mathematics, Technology, and Visual Arts

open access: yesSchool Science and Mathematics, EarlyView.
ABSTRACT This study investigated students' understanding of mathematical functions and strategies to create artwork using GeoGebra. It was framed by the principles of constructionism and examined how students use functions in creating artworks. We gathered data from students' artworks using the Algebra view and the Construction Protocol in the GeoGebra
Guillermo Bautista Jr   +5 more
wiley   +1 more source

Forced Response Analysis of Dynamic Systems With Inertia Nonlinearity by Applying the Multiharmonic Balance Method

open access: yesPAMM, Volume 26, Issue 1, March 2026.
ABSTRACT Nonlinear mechanical vibrations under harmonic forcing can be well approximated by Fourier series. For a finite number of harmonics, the error is minimized over one period of vibration. This technique, known as multiharmonic balance method (MHBM), is today widely used in academics as well as industrial applications, e.g., for friction‐damped ...
Sebastian Tatzko   +2 more
wiley   +1 more source

Dispersion relation for water waves with non-constant vorticity

open access: yes, 2012
We derive the dispersion relation for linearized small-amplitude gravity waves for various choices of non-constant vorticity. To the best of our knowledge, this relation is only known explicitly in the case of constant vorticity.
Constantin   +4 more
core   +1 more source

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