Results 51 to 60 of about 10,513 (148)

Dynamic Programming as a Method of Spline Approximation in the CAD Systems of Linear Constructions

open access: yesРоссийский технологический журнал, 2019
Under study is a problem of the line structure routing of roads, railways and other linear constructions. Designing a trace plan and longitudinal profile are considered as non-linear programming tasks.
D. A. Karpov, V. I. Struchenkov
doaj   +1 more source

EfficientL 2 approximation by splines

open access: yesNumerische Mathematik, 1979
LetS N k (t) be the linear space ofk-th order splines on [0, 1] having the simple knotst i determined from a fixed functiont by the rulet i=t(i/N). In this paper we introduce sequences of operators {Q N } N ? =1 fromC k [0, 1] toS N k (t) which are computationally simple and which, asN??, give essentially the best possible approximations tof and its ...
Barrow, D.L., Smith, P.W.
openaire   +2 more sources

Spline coalescence hidden variable fractal interpolation functions

open access: yesJournal of Applied Mathematics, 2006
This paper generalizes the classical spline using a new construction of spline coalescence hidden variable fractal interpolation function (CHFIF). The derivative of a spline CHFIF is a typical fractal function that is self-affine or non-self-affine ...
A. K. B. Chand, G. P. Kapoor
doaj   +1 more source

USING SPLINE FUNCTIONS FOR THE SUBSTANTIATION OF TAX POLICIES BY LOCAL AUTHORITIES [PDF]

open access: yesAnnals of the University of Oradea: Economic Science, 2011
The paper aims to approach innovative financial instruments for the management of public resources. In the category of these innovative tools have been included polynomial spline functions used for budgetary sizing in the substantiating of fiscal and ...
Otgon Cristian, Pop Razvan, Bolos Marcel
doaj  

Approximation of Vehicle Trajectory with B-Spline Curve

open access: yesActa Technologica Agriculturae, 2016
In this contribution, we present the description of a B-spline curve. We deal with creation of its basis function as well as with creation of the curve itself from entered control points.
Páleš Dušan   +3 more
doaj   +1 more source

Study on the Involute Spline Measurement Method

open access: yesJixie chuandong, 2020
The research history and current situation of involute spline is briefly summarized. The new development and application status of involute spline technology in recent years is more systematically introduced.
Lu Qiulong, Wang Yunxiang
doaj  

Surface Spline Approximation on SO(3)

open access: yesApplied and Computational Harmonic Analysis, 2009
The purpose of this article is to introduce a new class of kernels on SO(3) for approximation and interpolation, and to estimate the approximation power of the associated spaces. The kernels we consider arise as linear combinations of Green's functions of certain differential operators on the rotation group. They are conditionally positive definite and
Hangelbroek, Thomas, Schmid, Dominik
openaire   +2 more sources

Tensor spline approximation

open access: yesLinear Algebra and its Applications, 1980
AbstractThe cyclic-shift tensor-factorization interpolation method recently described by de Boor can be used in particular for least-squares fitting of multivariate data on a rectangular grid and for evaluation of the resulting tensor-product splines, taking advantage of existing linear algebra and univariate spline software.
openaire   +1 more source

An exponential spline for solving the fractional riccati differential equation

open access: yesپژوهش‌های ریاضی, 2022
In this Article, proposes an approximation for the solution of the Riccati equation based on the use of exponential spline functions. Then the exponential spline equations are obtained and the differential equation of the fractional Riccati is ...
reza jalilian, hooman emadifar
doaj  

Gamma Splines and Wavelets

open access: yesJournal of Engineering, 2013
In this work we introduce a new family of splines termed as gamma splines for continuous signal approximation and multiresolution analysis. The gamma splines are born by -times convolution of the exponential by itself.
Hannu Olkkonen, Juuso T. Olkkonen
doaj   +1 more source

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