There are small difference between our calculated lattice constants of the soft solids in Table VI and those in Table III. For the soft solids, the curve of energy versus lattice constant is very flat, and the equilibrium lattice constant is hard to resolve. We believe that the results in Table VI are more precise, because for them the integration for the energy was more accurate (accint = 12 in the BAND code) and because these accurate energies were fitted over a narrower range of lattice constants to the chosen equation of state (which is most reliable near equilibrium). In Table III, the energies of the soft solids displayed some small noise and so their equilibrium lattice constants could only be found by fitting to the equation of state over a larger range.

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