There are five documents within the DOCUMENT subdirectory.
  In summary,

  ex-nonsym.doc, ex-sym.doc  and ex-complex.doc
  -------------  ----------      --------------
  Example Templates of how to invoke the different computational
  modes offered by [D,S]NAUPD, [D,S]SAUPD and [C,Z]NAUPD.

  stat.doc
  --------
  File that gets timing statistics for the different parts
  of the Arnoldi update iteration codes within ARPACK. 

  debug.doc
  ---------
  File that explains the different printing options of the
  Arnoldi update iteration codes within ARPACK.