• Pepinsky's Machine is free software and you are encouraged to use, copy, modify, and distribute both the program and its documentation (PDF, 1.1 MBytes).


• If you ever need to reference this program in your publications (but note that you are not required -at least by me- to do so), please use the following citation : Glykos, N.M. (1999), "Pepinsky's Machine : an interactive, graphics-based Fourier synthesis program with applications in teaching and research.", J. Appl. Crystallogr., 32, 821-823.
  Electronic reprint (660 KBytes) : Local copy, or directly from J. Appl. Cryst. 32, 821-823, FREE ITEM, Copyright © International Union of Crystallography.
  

Click here to download the compressed archive : pepinsky.tar.gz (3.1 MBytes). The distribution includes source code, documentation, example scripts, a couple of exercises and pre-compiled executables suitable for Irix, Linux, OSF and solaris.


Once you downloaded the file, do :

The screen should go blue (or black, depending on the architecture), there will be a short pause (few seconds), and then a Patterson function should appear. If all this happens, everything is OK : press <ESC> and have a look at the documentation. If you have an Irix machine and the program complains about a missing library, try the second executable provided with the distribution (with ./pepinsky_IRIX53). If on a Linux machine with the GNOME manager you get an error message from the X server, try running the program from within Window Maker or KDE. If the problem persists, please do mail me a description of it.