1 School of Mathematics, KNT University of Technology, Tehran, Iran. 2 Department of Mathematics, College of Basic Sciences, Karaj branch Islamic Azad University ...

Approximation of classes of ψ -integrals of periodic functions of many variables by rectangular linear means of their Fourier series. Ukr Math J. (2005) 57: 678 – 86. 10.1007/s11253-005-0219-2 ...

SOME of the electron repulsion integrals [ϕaχb|θcψd]=∫ϕa* (1)χb (1)r−112θ*cψd (2) d (1)d (2) which arise in the molecular orbital theory based on linear combinations of atomic orbitals are ...

Abstract: The concepts of the lower approximation integral, the upper approximation integral and rough integrals are given on the basis of function rough sets. Based on these concepts, the relation of ...

Approximation theory in variable exponent Lebesgue spaces explores how well functions can be approximated when the underlying integrability exponent varies pointwise. Unlike classical Lᵖ spaces with a ...

Abstract: In this paper, we approximate the integration of continuous fuzzy real number valued function of one and two variables. To do this, we use Bernstein-type ...

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This package supports computing singular integrals involving Hilbert/Stieltjes/Cauchy, log, and power law kernels.

Learn how to approximate the integral of a function using the Reimann sum approximation. Reimann sum is an approximation of the area under a curve or between two curves by dividing it into multiple ...