Results 11 to 20 of about 92,147 (297)

Fourier Series Formalization in ACL2(r) [PDF]

open access: yesElectronic Proceedings in Theoretical Computer Science, 2015
We formalize some basic properties of Fourier series in the logic of ACL2(r), which is a variant of ACL2 that supports reasoning about the real and complex numbers by way of non-standard analysis.
Cuong K. Chau   +2 more
doaj   +6 more sources

An extension of the method of brackets. Part 1 [PDF]

open access: yesOpen Mathematics, 2017
The method of brackets is an efficient method for the evaluation of alarge class of definite integrals on the half-line. It is based on a small collection of rules, some of which are heuristic.
Gonzalez Ivan   +3 more
doaj   +4 more sources

Relation of the Cyclotomic Equation with the Harmonic and Derived Series [PDF]

open access: yesThe Scientific World Journal, 2015
We associate some (old) convergent series related to definite integrals with the cyclotomic equation xm-1=0, for several natural numbers m; for example, for m=3, x3-1=(x-1)(1+x+x2) leads to ∫01dx(1/(1+x+x2))=π/(33)=(1-1/2)+(1/4-1/5)+(1/7-1/8)+⋯.
Luis J. Boya, Cristian Rivera
doaj   +7 more sources

Definite Integrals Involving Combinations of Powers and Logarithmic Functions of Complicated Arguments Expressed in Terms of the Hurwitz Zeta Function

open access: yesJournal of Mathematics, 2021
In this manuscript, the authors derive closed formula for definite integrals of combinations of powers and logarithmic functions of complicated arguments and express these integrals in terms of the Hurwitz zeta functions.
Robert Reynolds, Allan Stauffer
doaj   +1 more source

Derivation of some integrals in Gradshteyn and Ryzhik

open access: yesAIMS Mathematics, 2021
In this work we present derivations of the formula listed in entry 4.113 in the sixth edition of Gradshteyn and Rhyzik's table of integrals. We evaluate two definite integrals of the formandin terms of the Lerch function where $ k $, $ a $, $ z $ and
Robert Reynolds, Allan Stauffer
doaj   +1 more source

The definite integrals of 2- refined neutrosophic functions and its properties [PDF]

open access: yesNeutrosophic Sets and Systems
This article aims to study the definite integrals of 2- refined neutrosophic functions and its properties. The definite integrals of 2- refined neutrosophic functions are defined in this study, and a set of theories are presented, including the ...
Yaser Ahmad Alhasan   +2 more
doaj   +1 more source

The Logarithmic Transform of a Polynomial Function Expressed in Terms of the Lerch Function

open access: yesMathematics, 2021
This is a collection of definite integrals involving the logarithmic and polynomial functions in terms of special functions and fundamental constants. All the results in this work are new.
Robert Reynolds, Allan Stauffer
doaj   +1 more source

A Lost Theorem: Definite Integrals in Asymptotic Setting [PDF]

open access: yes, 2008
We present a simple yet rigorous theory of integration that is based on two axioms rather than on a construction involving Riemann sums. With several examples we demonstrate how to set up integrals in applications of calculus without using Riemann sums ...
Cavalcante, Ray, Todorov, Todor D.
core   +3 more sources

Definite integrals involving product of logarithmic functions and logarithm of square root functions expressed in terms of special functions

open access: yesAIMS Mathematics, 2020
The derivation of integrals in the table of Gradshteyn and Ryzhik in terms of closed form solutions is always of interest. We evaluate several of these definite integrals of the form $\int_{0}^{\infty}\ln^k(\alpha y)\ln(R(y))dy$ in terms of a special ...
Robert Reynolds, Allan Stauffer
doaj   +1 more source

On some summation formulas

open access: yesDemonstratio Mathematica, 2022
In this note, we derive a finite summation formula and an infinite summation formula involving Harmonic numbers of order up to some order by means of several definite integrals.
Kim Taekyun   +3 more
doaj   +1 more source

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