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CASTEP: Supports atom positions fixed in Cartesian space and fixed lattice parameters, but ignores all combinations of constraints on the x, y, and z components of Cartesian atom positions and geometric constraints
DMol3: Supports atom positions fixed in Cartesian space, partial constraints on the x, y, or z components of Cartesian atom positions, and fixed interatomic distances, angles, and torsions, but ignores constraints on fractional positions and lattice parameters.

Note. DMol3 cannot change lattice geometry.

[ Last edited by lei0736 on 2008-5-11 at 12:48 ]
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