Results 111 to 120 of about 1,594 (139)

Surface Reconstruction by the Multiquadric Function

2012 Fourth International Conference on Computational and Information Sciences, 2012
A new experimental method was introduced in this paper, in which the Multiquadric function interpolation with scattered data points was used for surface reconstruction. Through the comparison of experiments and error analysis, we get the relative efficient proportion of interpolation nodes.
openaire   +1 more source

The shape preserving ang high accuracy approximation with multiquadric

Applied Mathematics, 1996
Given scattered data \(\{x_j,f_j\}\), the authors investigate some representations in terms of the radial function \(\varphi_j= [c^2+ |x-x_j|^2]^{1/2}\) and, for constant \(x_{j+1}-x_j=h\), the symmetric difference \(\psi_i=(\varphi_{i+1}- 2\varphi_i+\varphi_{i-1})/2h\). The coefficients of the approximating functions are divided differences.
Wu, Zongmin, Liu, Jianpin
openaire   +1 more source

Multiquadric Solution for Shallow Water Equations

Journal of Hydraulic Engineering, 1999
A computational algorithm based on the multiquadric, which is a continuously differentiable radial basis function, is devised to solve the shallow water equations. The numerical solutions are evaluated at scattered collocation points and the spatial partial derivatives are formed directly from partial derivatives of the radial basis function, not by ...
Yiu-Chung Hon, Kwok Fai Cheung, Xian-Zhong Mao, Edward J. Kansa   +3 more
openaire   +1 more source

A Robust Multiquadric Method for Digital Elevation Model Construction

Mathematical Geosciences, 2013
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Chen, Chuanfa, Li, Yanyan
openaire   +2 more sources

A Multiquadric Interpolation Method for Solving Initial Value Problems

Journal of Scientific Computing, 1997
The authors propose a new interpolation method for the numerical solution of the initial value problem for an \(n\)th order linear ordinary differential equation. The method is based on the application of the multiquadric scheme for global interpolation of the solution and then on the collocation to obtain the equations for the unknown coefficients ...
Hon, Y. C., Mao, X. Z.
openaire   +1 more source

The approximate solution of charged particle motion equations in oscillating magnetic fields using the local multiquadrics collocation method

Engineering computations, 2019
P. Assari, F. Asadi-Mehregan
semanticscholar   +1 more source

Stable multiquadric approximation by local thinning

2010
In this paper our concern is the recovery of a highly regular function by a discrete set $X$ of data with arbitrary distribution. We consider the case of a nonstationary multiquadric interpolant that presents numerical breakdown. Therefore we propose a global least squares multiquadric approximant with a center set $T$ of maximal size and obtained by a
M Bozzini, L Lenarduzzi
openaire   +4 more sources

Approximate Interpolation by Neural Networks with the Inverse Multiquadric Functions

2007
For approximate interpolation, a type of single-hidden layer feedforward neural networks with the inverse multiquadric activation function is presented in this paper. We give a new and quantitative proof of the fact that a single layer neural networks with n+1 hidden neurons can learn n + 1 distinct samples with zero error.
openaire   +1 more source

Construction of three-dimensional black-hole initial data via multiquadrics.

Physical Review D, Particles and fields, 1992
Dubal
semanticscholar   +1 more source

Analysis of composite plates by trigonometric shear deformation theory and multiquadrics

, 2005
A. Ferreira, C. Roque, R. Jorge
semanticscholar   +1 more source