The structure factor of a discrete set is the Fourier Transform of -scatterers of equal
strengths on all points of ,

**References**

Baake, M.; Grimm, U.; and Warrington, D. H. ``Some Remarks on the Visible Points of a Lattice.''
*J. Phys. A: Math. General* **27**, 2669-2674, 1994.

© 1996-9

1999-05-26