Analytic Integration of the Newton Potential over Cuboids and an Application to Fast Multipole Methods

preprint2020arXivOpen access

Abstract

We present simplified formulae for the analytic integration of the Newton potential of polynomials over boxes in two- and three-dimensional space. These are implemented in an easy-to-use C++ library that allows computations in arbitrary precision arithmetic which is also documented here. We describe how these results can be combined with fast multipole methods for general, non-polynomial data.

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