Results 11 to 20 of about 852,005 (184)

A stochastic roundoff error analysis for the convolution [PDF]

open access: yesMathematics of Computation, 1992
We study the accuracy of an algorithm which computes the convolution via Radix-2 fast Fourier transforms. Upper bounds are derived for the expected value and the variance of the accompanying linear forms in terms of the expected value and variance of the relative roundoff errors for the elementary operations of addition and multiplication.
Daniela Calvetti
openaire   +2 more sources

Degeneracy in the presence of roundoff errors [PDF]

open access: yesLinear Algebra and its Applications, 1988
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
R. Fletcher, Fletcher, R.
openaire   +2 more sources

Certified Roundoff Error Bounds Using Semidefinite Programming [PDF]

open access: yesACM Transactions on Mathematical Software, 2017
Roundoff errors cannot be avoided when implementing numerical programs with finite precision. The ability to reason about rounding is especially important if one wants to explore a range of potential representations, for instance, for FPGAs or custom hardware implementations.
Victor Magron   +2 more
openaire   +6 more sources

Fast and Accurate GPU-Accelerated Computation of Two-Electron Four-Center Coulomb Repulsion Integrals. [PDF]

open access: yesJ Comput Chem
Our GPU software rapidly and accurately computes two‐electron, four‐center Coulomb repulsion integrals using Slater‐type orbitals. It involves applying a simple transformation to eliminate the Coulomb singularity and using the trapezoidal quadrature rule. The quadrature rule converges rapidly, as demonstrated in this graph.
Kaur A   +7 more
europepmc   +2 more sources

Implementation of affine arithmetic using floating-point arithmetic: how to handle roundoff errors

open access: yes, 2014
International audienceAffine arithmetic is one of the extensions of interval arithmetic, which aimsat counteracting the variable dependency problem.
Ninin, Jordan, Revol, Nathalie
core   +7 more sources

Optimum structures of digital controllers in sampled-data systems: a roundoff noise analysis [PDF]

open access: yes, 2002
In this paper, the effect of roundoff noise in a digital controller is analyzed for a sampled-data system in which the digital controller is implemented in a state-space realization. A new measure, called averaged roundoff noise gain, is derived.
J. Wu   +7 more
core   +2 more sources

Rigorous Roundoff Error Analysis of Probabilistic Floating-Point Computations [PDF]

open access: yes, 2021
We present a detailed study of roundoff errors in probabilistic floating-point computations. We derive closed-form expressions for the distribution of roundoff errors associated with a random variable, and we prove that roundoff errors are generally ...
Constantinides, G   +3 more
core   +2 more sources

Sensitivity Analysis of the Data Assimilation-Driven Decomposition in Space and Time to Solve PDE-Constrained Optimization Problems

open access: yesAxioms, 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
doaj   +1 more source

Reducing roundoff errors in numerical integration of planetary ephemeris [PDF]

open access: yes, 2023
Modern lunar-planetary ephemerides are numerically integrated on the observational timespan of more than 100 years (with the last 20 years having very precise astrometrical data).
Pavlov, Dmitry   +2 more
core   +1 more source

Estimación del error en cierta clase de métodos numéricos combinados de estrategia recorrectora

open access: yesRevista de Matemática: Teoría y Aplicaciones, 2009
This paper shows an analysis of the order for the approximation and roundoff errors in combined numerical scheme with recorrector strategy of Adams–Moulton– Bashfort family.
Aymée Marrero, Marta Lourdes Baguer
doaj   +1 more source

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