Discrepancy in particle coordinates using rigid/small style in a linear molecule (trimer) model

Please reformat using triple backquotes (```) for quoting from input files. As such this is useless since the forum software recognizes characters like $ or * or _ as indicators for applying text style formatting.

Please see Please Read This First: Guidelines and Suggestions for posting LAMMPS questions for details on this (and other things :wink:)