Optimal smoothing for N-body codes

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Title: Optimal smoothing for N-body codes
Author: Merritt, David
Abstract: In any collisionless N-body code, there is an optimal choice for the smoothing parameter that minimizes the average error in the force evaluations. We show how to compute the optimal softening length in a direct-summation code and demonstrate that it varies roughly as N−1/3. (Refer to PDF file for exact formulas).
Description: Archived in: arXiv:astro-ph/9511146 v2 1 Feb 1996 AND Rutgers Astrophysics Preprint Series No. 181
Record URI: http://hdl.handle.net/1850/1684
Date: 1996-06

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