The files in this directory are a potpourri of (mostly) unrelated features contributed to LAMMPS by users. Each feature is a single file (actually a *.cpp and *.h file). More information about each feature can be found by reading its doc page in the LAMMPS doc directory. This link points to the doc page for all LAMMPS commands: http://lammps.sandia.gov/doc/Section_commands.html#3_5\ User-contributed features are listed at the bottom of the fix, compute, pair, etc sections. You should contact the author if you have specific questions about the feature or its code. ------------------------------------------------------------ angle_style cosine/shift, Carsten Svaneborg, science at zqex.dk, 8 Aug 11 angle_style cosine/shift/exp, Carsten Svaneborg, science at zqex.dk, 8 Aug 11 bond_style harmonic/shift, Carsten Svaneborg, science at zqex.dk, 8 Aug 11 bond_style harmonic/shift/cut, Carsten Svaneborg, science at zqex.dk, 8 Aug 11 compute temp/rotate, Laurent Joly (U Lyon, France), ljoly.ulyon at gmail.com, 8 Aug 11 dihedral_style cosine/shift/exp, Carsten Svaneborg, science at zqex.dk, 8 Aug 11 fix addtorque, Laurent Joly (U Lyon, France), ljoly.ulyon at gmail.com, 8 Aug 11 pair dipole/sf, Mario Orsi, orsimario at gmail.com, 8 Aug 11