A New Formula of Numerical Integration Based on Legendre Wavelets

Autor: Leila Bouzid, Naima Lahmar-Ablaoui
Rok vydání: 2021
Předmět:
Zdroj: 2021 International Conference on Recent Advances in Mathematics and Informatics (ICRAMI).
Popis: This work aims to establish a new numerical formula to estimate the simple integral\begin{equation*}I = \int_a^b f (t)dt,\end{equation*}where f a given function integrable over a bounded interval [a,b].This formula is based on the decomposition of the function f in the Hilbertian basis of L2(]0,l[), formed by Legendre wavelets.Illustrative examples have been discussed to demonstrate the validity and applicability of the formula, the results obtained have been compared with those given by the three generalized Newton-cotes formulas; the formula of the midpoint, of the trapeze and of Simpson.
Databáze: OpenAIRE