Results 11 to 20 of about 7,840 (182)

Scaling Turbulent Combustion Fields in Explosions

open access: yesApplied 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
doaj   +1 more source

Parts of the Whole: Error Estimation for Science Students

open access: yesNumeracy, 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
doaj   +1 more source

An Introduction to Affine Arithmetic

open access: yesTrends 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
doaj   +1 more source

Computation of the inverse Laplace Transform based on a Collocation method which uses only real values [PDF]

open access: yes, 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
core   +1 more source

On fully discrete collocation methods for solving weakly singular integral equations

open access: yesMathematical 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
doaj   +1 more source

Optimal Controller and Filter Realisations using Finite-precision, Floating- point Arithmetic. [PDF]

open access: yes, 2005
The problem of reducing the fragility of digital controllers and filters implemented using finite-precision, floating-point arithmetic is considered.
Chen, Sheng   +3 more
core   +1 more source

Self-similar Singularity of a 1D Model for the 3D Axisymmetric Euler Equations [PDF]

open access: yes, 2015
We investigate the self-similar singularity of a 1D model for the 3D axisymmetric Euler equations, which is motivated by a particular singularity formation scenario observed in numerical computation.
Hou, Thomas Y., Liu, Pengfei
core   +5 more sources

Quantization in Control Systems and Forward Error Analysis of Iterative Numerical Algorithms [PDF]

open access: yes, 2010
The use of control theory to study iterative algorithms, which can be considered as dynamical systems, opens many opportunities to find new tools for analysis of algorithms.
Constantinides, GA   +2 more
core   +2 more sources

Round-Off Error Suppression by Statistical Averaging

open access: yesAxioms
Regarding round-off errors as random is often a necessary simplification to describe their behavior. Assuming, in addition, the symmetry of their distributions, we show that one can, in unstable (ill-conditioned) computer calculations, suppress their ...
Andrej Liptaj
doaj   +1 more source

A Model for Understanding Numerical Stability

open access: yes, 2005
We present a model of roundoff error analysis that combines simplicity with predictive power. Though not considering all sources of roundoff within an algorithm, the model is related to a recursive roundoff error analysis and therefore capable of ...
Bornemann, Folkmar
core   +1 more source

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