Minimal Numerical Differentiation Formulas
Numerical Analysis
2025-08-26 v2
Abstract
We investigate numerical differentiation formulas on irregular centers in two or more variables that are exact for polynomials of a given order and minimize an absolute seminorm of the weight vector. Error bounds are given in terms of a growth function that carries the information about the geometry of the centers. Specific forms of weighted and weighted least squares minimization are proposed that produce numerical differentiation formulas with particularly good performance in numerical experiments.
Cite
@article{arxiv.1611.05001,
title = {Minimal Numerical Differentiation Formulas},
author = {Oleg Davydov and Robert Schaback},
journal= {arXiv preprint arXiv:1611.05001},
year = {2025}
}