License

    (C) COPYRIGHT 2004 UNIVERSITY OF CHICAGO

    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, PROCESS, OR SERVICE BY TRADE NAME, TRADEMARK,
        MANUFACTURER, OR OTHERWISE, DOES NOT NECESSARILY CONSTITUTE OR IMPLY ITS ENDORSEMENT,
        RECOMMENDATION, OR FAVORING BY THE UNITED STATES GOVERNMENT OR ANY AGENCY THEREOF. THE
        VIEW AND OPINIONS OF AUTHORS EXPRESSED HEREIN DO NOT NECESSARILY STATE OR REFLECT THOSE OF
        THE UNITED STATES GOVERNMENT OR ANY AGENCY THEREOF.