Results 21 to 30 of about 3,221,012 (201)
Axioms, 2023 This paper is presented in the context of sensitivity analysis (SA) of large-scale data assimilation (DA) models. We studied consistency, convergence, stability and roundoff error propagation of the reduced-space optimization technique arising in ...
Luisa D’Amore, Rosalba Cacciapuoti
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Propagation of internal errors in explicit Runge--Kutta methods and internal stability of SSP and extrapolation methods [PDF]
, 2014 In practical computation with Runge--Kutta methods, the stage equations are not satisfied exactly, due to roundoff errors, algebraic solver errors, and so forth.
Ketcheson, David I. +2 more
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Where the really hard problems aren’t
Operations Research Perspectives, 2020 Not all problem instances in combinatorial optimization are equally hard. One famous study “Where the Really Hard Problems Are” shows that for three decision problems and one optimization problem, computational costs can vary dramatically for equally ...
Joeri Sleegers +3 more
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Error Analysis of Band Matrix Method [PDF]
, 1984 Numerical error in the solution of the band matrix method based on the elimination method in single precision is investigated theoretically and experimentally, and the behaviour of the truncation error and the roundoff error is clarified.
Soga, Akira, Taniguchi, Takeo
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Scaling Turbulent Combustion Fields in Explosions
Applied Sciences, 2020 We considered the topic of explosions from spherical high-explosive (HE) charges. We studied how the turbulent combustion fields scale. On the basis of theories of dimensional analysis by Bridgman and similarity theories of Sedov and Barenblatt, we found
Allen Kuhl, David Grote, John Bell
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Parts of the Whole: Error Estimation for Science Students
Numeracy, 2017 It is important for science students to understand not only how to estimate error sizes in measurement data, but also to see how these errors contribute to errors in conclusions they may make about the data. Relatively small errors in measurement, errors
Dorothy Wallace
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An Introduction to Affine Arithmetic
Trends in Computational and Applied Mathematics, 2003 Affine arithmetic (AA) is a model for self-validated computation which, like standard interval arithmetic (IA), produces guaranteed enclosures for computed quantities, taking into account any uncertainties in the input data as well as all internal ...
J. Stolfi, L.H. de Figueiredo
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Solution of Dense Linear Systems via Roundoff-Error-Free Factorization Algorithms
ACM Transactions on Mathematical Software, 2018 Exact solving of systems of linear equations (SLEs) is a fundamental subroutine within number theory, formal verification of mathematical proofs, and exact-precision mathematical programming.
Adolfo R. Escobedo +2 more
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Computation of the inverse Laplace Transform based on a Collocation method which uses only real values [PDF]
, 2007 We develop a numerical algorithm for inverting a Laplace transform (LT), based on Laguerre polynomial series expansion of the inverse function under the assumption that the LT is known on the real axis only.
A. MurliI +3 more
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On fully discrete collocation methods for solving weakly singular integral equations
Mathematical Modelling and Analysis, 2009 A popular class of methods for solving weakly singular integral equations is the class of piecewise polynomial collocation methods. In order to implement those methods one has to compute exactly certain integrals that determine the linear system to be ...
Raul Kangro, Inga Kangro
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