Construction of non-polynomial splines of the first level with fourth order of approximation

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Abstract

Interpolation using Hermite polynomial cubic splines is well known and often used. Here we propose an approximation with the non-polynomial splines with the fourth order of approximation. The splines uses the values of the function and the first derivative of the function in the nodes. We call the approximation as first level approximation because it uses the first derivative of the function. This approximation has the properties of polynomial and trigonometric functions. Here we also have constructed a non-polynomial interpolating spline which has continuous the first and second derivative. This approximation uses the values of the function at the nodes and the values of the first derivative of the function at the ends of the interval [a, b]. Estimates of the approximations are given and the constants included in them are calculated. Numerical examples are given.

Original languageEnglish
Title of host publicationInternational Conference on Numerical Analysis and Applied Mathematics, ICNAAM 2019
EditorsTheodore E. Simos, Theodore E. Simos, Theodore E. Simos, Theodore E. Simos, Theodore E. Simos, Charalambos Tsitouras
PublisherAmerican Institute of Physics
ISBN (Electronic)9780735440258
DOIs
StatePublished - 24 Nov 2020
EventInternational Conference on Numerical Analysis and Applied Mathematics 2019, ICNAAM 2019 - Rhodes, Greece
Duration: 23 Sep 201928 Sep 2019

Publication series

NameAIP Conference Proceedings
Volume2293
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

ConferenceInternational Conference on Numerical Analysis and Applied Mathematics 2019, ICNAAM 2019
CountryGreece
CityRhodes
Period23/09/1928/09/19

Scopus subject areas

  • Physics and Astronomy(all)

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