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**Up:** The Reciprocal Lattice
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- 4.1 Scalar product of direct and reciprocal lattice vectors
- 4.2 Vector product of two direct lattice vectors
- 4.3 Indices of the set of lattice planes parallel to two direct lattice rows
- 4.4 Zone axis of two sets of direct lattice planes
- 4.5 Reciprocity of F and I lattices

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Crystallography**