Results 11 to 20 of about 209,471 (303)
The role of numerical integration in numerical homogenization* [PDF]
ESAIM: Proceedings and Surveys, 2015 Finite elements methods (FEMs) with numerical integration play a central role in numerical homogenization methods for partial differential equations with multiple scales, as the effective data in a homogenization problem can only be ...
Abdulle Assyr
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Numerical modelling of double integration with different data spacing: A Python-based approach [PDF]
Mathematics and Computational Sciences, 2023 In this article, an attempt has been made to model the process of double integration for different data spacing. The trapezoidal rule has been used to perform integration, whereas Newton's divided difference handles the inconsistent data points.
Priyanshi Mishra +3 more
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Some applications of Sigmoid functions [PDF]
Iranian Journal of Numerical Analysis and Optimization, 2021 In numerical analysis, the process of fitting a function via given data is called interpolation. Interpolation has many applications in engineering and science.
M. A. Jafari, A. Aminataei
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Mathematics, 2022 The classical radial point interpolation method (RPIM) is a powerful meshfree numerical technique for engineering computation. In the original RPIM, the moving support domain for the quadrature point is usually employed for the field function ...
Tingting Sun +3 more
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An enhanced BEM approach applied to potential problems: a comparative study [PDF]
Numerical Methods in Civil Engineering, 2020 In the present paper, a hybrid analytical/numerical method capable of integrating singular logarithmic functions, as an essential part of the Boundary Element Method (BEM) process, is presented.
Parham Azhir +3 more
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Area of the Intersection between a Sphere and a Cylindrical Plane
Mathematical and Computational Applications, 2022 A proper understanding of the porous structure of packed beds of spheres is imperative in the analysis and design of the processes involving fluid flow and heat and mass transfer. The radial variation in porosity is of specific interest.
Charl Gabriël Du Toit
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Semi-explicit Unconditionally Stable Time Integration method based on Generalized-α technique [PDF]
مهندسی عمران شریف, 2022 In structural dynamic analysis, various time integration techniques have been proposed. Generally, these algorithms discretize the time domain into a finite number of intervals and approximate the displacements, velocities, and accelerations via ...
A.H namadchi +2 more
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Numerical contour integration for loop integrals [PDF]
Computer Physics Communications, 2006 A fully numerical method to calculate loop integrals, a numerical contour-integration method, is proposed. Loop integrals can be interpreted as a contour integral in a complex plane for an integrand with multi-poles in the plane. Stable and efficient numerical integrations an along appropriate contour can be performed for tensor integrals as well as ...
Yoshimi Kurihara, Toyohisa Kaneko
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Кібернетика та комп'ютерні технології, 2020 Introduction. In many applied problems, such as statistical data processing, digital filtering, computed tomography, pattern recognition, and many others, there is a need for numerical integration, moreover, with a given (often quite high) accuracy ...
V.K. Zadiraka +2 more
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Identification of Continuous-Discrete Hidden Markov Models with Multiplicative Observation Noise
Mathematics, 2022 The paper aims to identify hidden Markov model parameters. The unobservable state represents a finite-state Markov jump process. The observations contain Wiener noise with state-dependent intensity.
Andrey Borisov, Andrey Gorshenin
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