Results 231 to 240 of about 559 (266)

Approximate quadratures of the circle [PDF]

open access: yesJournal of the Franklin Institute, 1879
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Pliny Earle Chase
exaly   +2 more sources
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Gaussian quadratures for approximate of fuzzy integrals

Applied Mathematics and Computation, 2005
The authors discuss the Gaussian quadrature for fuzzy integration. Several examples are given.
Tofigh Allahviranloo, M Otadi
exaly   +2 more sources

Padé approximation and gaussian quadrature

Bulletin of the Australian Mathematical Society, 1974
For certain types of formal power series, including the series of Stieltjes, we prove that the [n, n+j], j ≥ −1, Padé approximants coincide with certain gaussian quadrature formulae and hence, convergence of these approximants follows immediately.
Allen, G. D.   +4 more
openaire   +2 more sources

Quadrature approximation properties of the spiral-phase quadrature transform

2011 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2011
The notion of the 1-D analytic signal is well understood and has found many applications. At the heart of the analytic signal concept is the Hilbert transform. The problem in extending the concept of analytic signal to higher dimensions is that there is no unique multidimensional definition of the Hilbert transform.
Haricharan Aragonda   +1 more
openaire   +1 more source

Infinite-Dimensional Quadrature and Approximation of Distributions

Foundations of Computational Mathematics, 2008
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Jakob Creutzig   +3 more
openaire   +2 more sources

On realizations of an approximation random quadrature formula

USSR Computational Mathematics and Mathematical Physics, 1983
The coefficients \(c=\int f(x)\Phi(x)\mu(dx)\) of the least square approximation of f according to a system \(\Phi =(\phi_ 1,...,\phi_ m)\) of \(\mu\)-orthonormalized functions \(\{\phi_ k\}^ m_ 1\) satisfy a linear system of equations. The authors propose to approximate the integrals c by the solution \(\hat c\) of an approximation of this system ...
Zakharov, V. V., Koryakin, A. I.
openaire   +2 more sources

Asymptotic approximations from quadrature rules

Physical Review A, 1992
We examine the ability of one- and two-point Gauss-Laguerre quadratures in correctly describing the asymptotic behavior of Fourier transforms. We illustrate the effectiveness of this method with the example of the neon atomic form factor and compare it to the results obtained from the familiar expansion in terms of inverse powers of the independent ...
, Sagar, , Schmider, , Smith
openaire   +2 more sources

Cross approximation-based quadrature filter

2016 IEEE 55th Conference on Decision and Control (CDC), 2016
The Gauss-Hermite quadrature filter (GHQF) can achieve arbitrary degree of accuracy and high stability, but it suffers from heavy computational burden. Alternative high accurate filters, such as high-degree cubature Kalman filter (CKF) and high-degree sparse-grid quadrature filter (SGQF), can greatly reduce the computational cost but may have stability
Zhong Wang 0002, Yan Li 0096
openaire   +1 more source

Gaussian quadratures for approximate of fuzzy multiple integrals

Applied Mathematics and Computation, 2006
The authors use Gaussian methods with positive coefficients to study fuzzy multiple integrals. They ilustrate the introduced algorithms by solving some numerical examples.
Tofigh Allahviranloo, M Otadi
exaly   +2 more sources

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