Results 41 to 50 of about 2,749,932 (104)

Optimal quadrature formulas with derivatives in Sobolev space

open access: yes, 2014
In the present paper the problem of construction of optimal quadrature formulas in the sense of Sard in the space $L_2^{(m)}(0,1)$is considered. Here the quadrature sum consists of values of the integrand at nodes and values of the first and the third derivatives of the integrand at the end points of the integration interval.
Shadimetov, Kh. M.   +2 more
openaire   +2 more sources

On Stratified Extensions of Gauss-Laguerre and Gauss-Hermite Quadrature Formulas.

open access: yes, 2001
For the practical estimation of the error of Gauss–Laguerre and Gauss–Hermite quadrature formulas, it is well known that real positive Kronrod formulas do not exist.
Ehrich, S.
core  

Some Optimal Quadrature Formulas and Error Bounds [PDF]

open access: yes, 2012
The corrected quadrature rules are considered and the estimations of error involving the second derivative are given. The numerical examples which provides that the approximation in corrected rule of a optimal quadrature formula in sense Nikolski is ...
Maria Acu, Ana, Babos, Alina
core  

Quadrature Formulas

open access: yes, 2007
= 1 ( = n) if x 1 6= a (x n 6= b). Here K x denotes the derivative with respect to the first variable. Formulas which satisfy these conditions are called Wilf formulas.
Constructed From
core  

Newton-Cotes Quadrature Formulas

open access: yes, 2014
This Demonstration shows the Newton–Cotes quadrature formulas of integration and their application to the integration of sin(x)Componente Curricular::Educação Superior::Ciências Exatas e da Terra ...
Sevilla, Eugenio Bravo
core  

Optimal cubature formulas for approximate integrals of functions defined on a sphere in three-dimensional space

open access: yes
The development of effective methods of approximate calculation of integrals using optimal cubature formulas and optimal quadrature formulas with trigonometric weights for defined functions on a sphere, the creation of new algorithms for approximate ...
Otadavlat Nasriddinov   +5 more
core   +1 more source

Newton-Cotes Quadrature Formulas

open access: yes, 2016
This Demonstration shows the Newton–Cotes quadrature formulas of integration and their application to the integration of sin(x)Componente Curricular::Educação Superior::Ciências Exatas e da Terra ...
Sevilla, Eugenio Bravo
core  

Asymptotic bit cost of quadrature formulas obtained by variable transformation

open access: yes, 1997
In this paper, the asymptotic bit operation cost of a family of quadrature formulas, especially suitable for evaluation of improper integrals, is studied.
Favati P
core   +1 more source

Newton-Cotes Quadrature Formulas

open access: yes, 2008
This Demonstration shows the Newton–Cotes quadrature formulas of integration and their application to the integration of sin(x)Componente Curricular::Educação Superior::Ciências Exatas e da Terra ...
Sevilla, Eugenio Bravo
core  

The numerical solution of a Fredholm integral equations of the second kind by the weighted optimal quadrature formula

open access: yes
This work considers the optimal quadrature formula in a Hilbert space for the numerical approximation of the integral equations. It discusses the sequence of solving integral equations with quadrature formulas.
Abdullo Hayotov, Samandar Babaev
core   +1 more source

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