structure factor

Calculate structure factor based on positions of scatterers in real-space.

Calculate structure factor based on positions of scatterers in real-space. Functions for one and two dimensions.

You supply system size and scatterer positions on a integer lattice, function returns structure factor and momentum-space coordinates for plotting. Two or three dimensional plot is also created with appropriate axis labels.

See
http://en.wikipedia.org/wiki/Structure_factor
for more background.

Calculations for systems with length larger than 100 take a long time since loops are not vectorized. This is because the purpose is educational rather than for use with data from actual experiments.