[HTML][HTML] Taylor series based finite difference approximations of higher-degree derivatives

IR Khan, R Ohba - Journal of Computational and Applied Mathematics, 2003 - Elsevier
IR Khan, R Ohba
Journal of Computational and Applied Mathematics, 2003Elsevier
A new type of Taylor series based finite difference approximations of higher-degree
derivatives of a function are presented in closed forms, with their coefficients given by
explicit formulas for arbitrary orders. Characteristics and accuracies of presented
approximations and already presented central difference higher-degree approximations are
investigated by performing example numerical differentiations. It is shown that the presented
approximations are more accurate than the central difference approximations, especially for …
A new type of Taylor series based finite difference approximations of higher-degree derivatives of a function are presented in closed forms, with their coefficients given by explicit formulas for arbitrary orders. Characteristics and accuracies of presented approximations and already presented central difference higher-degree approximations are investigated by performing example numerical differentiations. It is shown that the presented approximations are more accurate than the central difference approximations, especially for odd degrees. However, for even degrees, central difference approximations become attractive, as the coefficients of the presented approximations of even degrees do not correspond to equispaced input samples.
Elsevier
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