Exponentially fitted interpolation formulas using three unequally spaced nodes
Commun. Korean Math. Soc.
Published online September 29, 2021
Kyung Joong Kim
Korea Aerospace University
Abstract : Our aim is to construct exponentially fitted interpolation
formulas using three unequally spaced nodes for an
$\omega$-dependent function. The coefficients of the formulas are
determined by solving a linear system, and some of the properties
of these coefficients are obtained. Numerical results are
illustrated with respect to the determinant of the coefficient
matrix of the linear system. The errors regarding the formulas are
analyzed numerically and approached theoretically.
Keywords : exponentially fitted, interpolation
MSC numbers : 65D05
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