
      PM1

      This program discloses material protectable under copyright laws of the United States. Permission to copy
         and modify this software and its documentation is hereby granted, provided that this notice is
         retained thereon and on all copies or modifications. The University of Chicago makes no
         representations as to the suitability and operability of this software for any purpose. It is provided
         "as is"; without express or implied warranty. Permission is hereby granted to use, reproduce, prepare
         derivative works, and to redistribute to others, so long as this original copyright notice is
         retained. Any publication resulting from research that made use of this software should cite this
         document.
      This software was authored by:
      Steven J. Benson Mathematics and Computer Science Division Argonne National Laboratory Argonne IL 60439
      Yinyu Ye Department of Management Science and Engineering Stanford University Stanford, CA U.S.A
      Any questions or comments on the software may be directed to benson@mcs.anl.gov or yinyu-ye@stanford.edu
      Argonne National Laboratory with facilities in the states of Illinois and Idaho, is owned by The United
         States Government, and operated by the University of Chicago under provision of a contract with the
         Department of Energy.
      DISCLAIMER
        THIS PROGRAM WAS PREPARED AS AN ACCOUNT OF WORK SPONSORED BY AN AGENCY OF THE UNITED STATES
             GOVERNMENT. NEITHER THE UNITED STATES GOVERNMENT NOR ANY AGENCY THEREOF, NOR THE UNIVERSITY OF
             CHICAGO, NOR ANY OF THEIR EMPLOYEES OR OFFICERS, MAKES ANY WARRANTY, EXPRESS OR IMPLIED, OR
             ASSUMES ANY LEGAL LIABILITY OR RESPONSIBILITY FOR THE ACCURACY, COMPLETENESS, OR USEFULNESS OF
             ANY INFORMATION, APPARATUS, PRODUCT, OR PROCESS DISCLOSED, OR REPRESENTS THAT ITS USE WOULD
             NOT INFRINGE PRIVATELY OWNED RIGHTS. REFERENCE HEREIN TO ANY SPECIFIC COMMERCIAL PRODUCT,
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             NECESSARILY STATE OR REFLECT THOSE OF THE UNITED STATES GOVERNMENT OR ANY AGENCY THEREOF.