Results 21 to 30 of about 380,680 (312)

Runtime Abstract Interpretation for Numerical Accuracy and Robustness

open access: yes, 2021
Verification of numerical accuracy properties in modern software remains an important and challenging task. One of its difficulties is related to unstable tests, where the execution can take different branches for real and floating-point numbers.
Védrine, Franck   +3 more
openaire   +2 more sources

Bathymetry Development and Flow Analyses Using Two-Dimensional Numerical Modeling Approach for Lake Victoria

open access: yesFluids, 2019
This study explored two-dimensional (2D) numerical hydrodynamic model simulations of Lake Victoria. Several methods were developed in Matlab to build the lake topography.
Seema Paul   +5 more
doaj   +1 more source

Numerical methods for time-fractional convection-diffusion problems with high-order accuracy

open access: yesOpen Mathematics, 2021
In this paper, we consider the numerical method for solving the two-dimensional time-fractional convection-diffusion equation with a fractional derivative of order α\alpha ...
Dong Gang, Guo Zhichang, Yao Wenjuan
doaj   +1 more source

Numerical study of flow around flat plate using higher-order accuracy scheme [PDF]

open access: yesE3S Web of Conferences, 2023
Analytical methods exist to solve the problems of hydromechanics and heat transfer, but it is not possible to obtain the solution to some inhomogeneous and nonlinear problems of hydromechanics and heat transfer by analytical methods. The solution to such
Madaliev Murodil   +4 more
doaj   +1 more source

A whole high-accuracy numerical calculation system for the 1D Poisson equation by the interpolation finite difference method

open access: yesAIP Advances, 2022
The interpolation finite difference method (IFDM) allows free numerical analysis of elliptic partial differential equations over arbitrary domains. Conventionally, in the finite difference method (FDM), the calculation is performed using the second-order
Tsugio Fukuchi
doaj   +1 more source

A Higher-Order Numerical Scheme for Two-Dimensional Nonlinear Fractional Volterra Integral Equations with Uniform Accuracy

open access: yes, 2022
In this paper, based on the modified block-by-block method, we propose a higher-order numerical scheme for two-dimensional nonlinear fractional Volterra integral equations with uniform accuracy. This approach involves discretizing the domain into a large
Zi-Qiang Wang, Jun-Ying Cao, Qin Liu
core   +1 more source

Transformation of a PID Controller for Numerical Accuracy

open access: yesElectronic Notes in Theoretical Computer Science, 2015
AbstractNumerical programs performing floating-point computations are very sensitive to the way formulas are written. Several techniques have been proposed concerning the transformation of expressions in order to improve their accuracy and now we aim at going a step further by automatically transforming larger pieces of code containing several ...
Nasrine Damouche   +2 more
openaire   +3 more sources

Conducting Web-Based Experiments for Numerical Cognition Research

open access: yesJournal of Cognition, 2019
It is becoming increasingly popular and straightforward to collect data in cognitive psychology through web-based studies. In this paper, I review issues around web-based data collection for the purpose of numerical cognition research.
Arnold R. Kochari
doaj   +1 more source

A kernel derivative free SPH method

open access: yesResults in Applied Mathematics, 2023
Based on smooth particle hydrodynamics (SPH) method, this paper proposes the concept of kernel function moment and studies its properties, and puts forward the KDF-SPH (Kernel Derivative Free SPH: KDF-SPH) method.
Dongyan Feng, Rahmatjan Imin
doaj   +1 more source

High-accuracy numerical simulation of 2D transport problems

open access: yesShui kexue jinzhan, 2012
An operator-splitting algorithm for the two-dimensional convection-dispersion equation is developed.The governing equations are split into two successive initial value problems,which include a pure convection problem and a pure dispersion problem.For any
SHAO Jun-rong   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy