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. Author manuscript; available in PMC: 2012 Jul 1.
Published in final edited form as: Comput Phys Commun. 2011 Jul 1;182(7):1455–1462. doi: 10.1016/j.cpc.2011.03.014

Figure 2.

Figure 2

Coarse-graining the electrostatic potential by geometric partitioning and superposition. The sequence of figures illustrate the process of building partitioning schemes that insure convergence at (a) 1, (b,c) 2, and (d) 3 specified control points.