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. Author manuscript; available in PMC: 2011 Aug 17.
Published in final edited form as: IET Comput Digit Tech. 2010 May;4(3):184–195. doi: 10.1049/iet-cdt.2009.0013

Table 2. Number of bits per voxel for computing various energy functions.

Energy term Data type Number of bits
Receptor Ligand
attractive van der Waals integer 8 4
repulsive van der Waals integer 4 4
electrostatics fixed point 9 9
pairwise potentials fixed point 9 9