# This is not an executable script. This is the notice of # license and warranty for ASCEND IV. The authors of ASCEND # will consider other licensing arrangements on a # case-by-case basis. This license applies to all ASCEND # interface, compiler, general, utility, model, and solver # programs, but not to third # party software subsystems (Tcl/Tk/solving codes) that we # may call. # # GNU GENERAL PUBLIC LICENSE # Version 2, June 1991 # Copyright (C) 1989, 1991 # Free Software Foundation, Inc. # 675 Mass Ave, Cambridge, MA 02139, USA # Everyone is permitted to copy and distribute verbatim # copies of this license document, but changing it is not # allowed. # Preamble # The licenses for most software are designed to take away # your freedom to share and change it. By contrast, the GNU # General Public License is intended to guarantee your # freedom to share and change free software--to make sure the # software is free for all its users. This General Public # License applies to most of the Free Software Foundation's # software and to any other program whose authors commit to # using it. (Some other Free Software Foundation software is # covered by the GNU Library General Public License # instead.) You can apply it to your programs, too. # When we speak of free software, we are referring to # freedom, not price. Our General Public Licenses are # designed to make sure that you have the freedom to # distribute copies of free software (and charge for this # service if you wish), that you receive source code or can # get it if you want it, that you can change the software or # use pieces of it in new free programs; and that you know # you can do these things. # To protect your rights, we need to make restrictions that # forbid anyone to deny you these rights or to ask you to # surrender the rights. These restrictions translate to # certain responsibilities for you if you distribute copies # of the software, or if you modify it. # For example, if you distribute copies of such a program, # whether gratis or for a fee, you must give the recipients # all the rights that you have. You must make sure that # they, too, receive or can get the source code. And you # must show them these terms so they know their rights. # We protect your rights with two steps: (1) copyright the # software, and (2) offer you this license which gives you # legal permission to copy, distribute and/or modify the # software. # Also, for each author's protection and ours, we want to # make certain that everyone understands that there is no # warranty for this free software. If the software is # modified by someone else and passed on, we want its # recipients to know that what they have is not the original, # so that any problems introduced by others will not reflect # on the original authors' reputations. # Finally, any free program is threatened constantly by # software patents. We wish to avoid the danger that # redistributors of a free program will individually obtain # patent licenses, in effect making the program proprietary. # To prevent this, we have made it clear that any patent must # be licensed for everyone's free use or not licensed at # all. # The precise terms and conditions for copying, distribution # and modification follow. # GNU GENERAL PUBLIC LICENSE # TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND # MODIFICATION # 0. This License applies to any program or other work # which contains a notice placed by the copyright holder # saying it may be distributed under the terms of this # General Public License. The "Program", below, refers to # any such program or work, and a "work based on the Program" # means either the Program or any derivative work under # copyright law: that is to say, a work containing the # Program or a portion of it, either verbatim or with # modifications and/or translated into another language. # (Hereinafter, translation is included without limitation in # the term "modification".) Each licensee is addressed as # "you". # Activities other than copying, distribution and # modification are not covered by this License; they are # outside its scope. The act of running the Program is not # restricted, and the output from the Program is covered only # if its contents constitute a work based on the Program # (independent of having been made by running the Program). # Whether that is true depends on what the Program does. # 1. You may copy and distribute verbatim copies of the # Program's source code as you receive it, in any medium, # provided that you conspicuously and appropriately publish # on each copy an appropriate copyright notice and disclaimer # of warranty; keep intact all the notices that refer to this # License and to the absence of any warranty; and give any # other recipients of the Program a copy of this License # along with the Program. # You may charge a fee for the physical act of transferring a # copy, and you may at your option offer warranty protection # in exchange for a fee. # 2. You may modify your copy or copies of the Program or # any portion of it, thus forming a work based on the # Program, and copy and distribute such modifications or work # under the terms of Section 1 above, provided that you also # meet all of these conditions: # a) You must cause the modified files to carry prominent # notices stating that you changed the files and the date # of any change. # b) You must cause any work that you distribute or # publish, that in whole or in part contains or is # derived from the Program or any part thereof, to be # licensed as a whole at no charge to all third parties # under the terms of this License. # c) If the modified program normally reads commands # interactively when run, you must cause it, when started # running for such interactive use in the most ordinary # way, to print or display an announcement including an # appropriate copyright notice and a notice that there is # no warranty (or else, saying that you provide a # warranty) and that users may redistribute the program # under these conditions, and telling the user how to # view a copy of this License. (Exception: if the # Program itself is interactive but does not normally # print such an announcement, your work based on the # Program is not required to print an announcement.) # These requirements apply to the modified work as a whole. # If identifiable sections of that work are not derived from # the Program, and can be reasonably considered independent # and separate works in themselves, then this License, and # its terms, do not apply to those sections when you # distribute them as separate works. But when you distribute # the same sections as part of a whole which is a work based # on the Program, the distribution of the whole must be on # the terms of this License, whose permissions for other # licensees extend to the entire whole, and thus to each and # every part regardless of who wrote it. # Thus, it is not the intent of this section to claim rights # or contest your rights to work written entirely by you; # rather, the intent is to exercise the right to control the # distribution of derivative or collective works based on the # Program. # In addition, mere aggregation of another work not based on # the Program with the Program (or with a work based on the # Program) on a volume of a storage or distribution medium # does not bring the other work under the scope of this # License. # 3. You may copy and distribute the Program (or a work # based on it, under Section 2) in object code or executable # form under the terms of Sections 1 and 2 above provided # that you also do one of the following: # a) Accompany it with the complete corresponding # machine-readable source code, which must be distributed # under the terms of Sections 1 and 2 above on a medium # customarily used for software interchange; or, # b) Accompany it with a written offer, valid for at # least three years, to give any third party, for a # charge no more than your cost of physically performing # source distribution, a complete machine-readable copy # of the corresponding source code, to be distributed # under the terms of Sections 1 and 2 above on a medium # customarily used for software interchange; or, # c) Accompany it with the information you received as to # the offer to distribute corresponding source code. # (This alternative is allowed only for noncommercial # distribution and only if you received the program in # object code or executable form with such an offer, in # accord with Subsection b above.) # The source code for a work means the preferred form of the # work for making modifications to it. For an executable # work, complete source code means all the source code for # all modules it contains, plus any associated interface # definition files, plus the scripts used to control # compilation and installation of the executable. However, # as a special exception, the source code distributed need # not include anything that is normally distributed (in # either source or binary form) with the major components # (compiler, kernel, and so on) of the operating system on # which the executable runs, unless that component itself # accompanies the executable. # If distribution of executable or object code is made by # offering access to copy from a designated place, then # offering equivalent access to copy the source code from the # same place counts as distribution of the source code, even # though third parties are not compelled to copy the source # along with the object code. # 4. You may not copy, modify, sublicense, or distribute # the Program except as expressly provided under this # License. Any attempt otherwise to copy, modify, sublicense # or distribute the Program is void, and will automatically # terminate your rights under this License. However, parties # who have received copies, or rights, from you under this # License will not have their licenses terminated so long as # such parties remain in full compliance. # 5. You are not required to accept this License, since you # have not signed it. However, nothing else grants you # permission to modify or distribute the Program or its # derivative works. These actions are prohibited by law if # you do not accept this License. Therefore, by modifying or # distributing the Program (or any work based on the # Program), you indicate your acceptance of this License to # do so, and all its terms and conditions for copying, # distributing or modifying the Program or works based on # it. # 6. Each time you redistribute the Program (or any work # based on the Program), the recipient automatically receives # a license from the original licensor to copy, distribute or # modify the Program subject to these terms and conditions. # You may not impose any further restrictions on the # recipients' exercise of the rights granted herein. You are # not responsible for enforcing compliance by third parties # to this License. # 7. If, as a consequence of a court judgment or allegation # of patent infringement or for any other reason (not limited # to patent issues), conditions are imposed on you (whether # by court order, agreement or otherwise) that contradict the # conditions of this License, they do not excuse you from the # conditions of this License. If you cannot distribute so as # to satisfy simultaneously your obligations under this # License and any other pertinent obligations, then as a # consequence you may not distribute the Program at all. For # example, if a patent license would not permit royalty-free # redistribution of the Program by all those who receive # copies directly or indirectly through you, then the only # way you could satisfy both it and this License would be to # refrain entirely from distribution of the Program. # If any portion of this section is held invalid or # unenforceable under any particular circumstance, the # balance of the section is intended to apply and the section # as a whole is intended to apply in other circumstances. # It is not the purpose of this section to induce you to # infringe any patents or other property right claims or to # contest validity of any such claims; this section has the # sole purpose of protecting the integrity of the free # software distribution system, which is implemented by # public license practices. Many people have made generous # contributions to the wide range of software distributed # through that system in reliance on consistent application # of that system; it is up to the author/donor to decide if # he or she is willing to distribute software through any # other system and a licensee cannot impose that choice. # This section is intended to make thoroughly clear what is # believed to be a consequence of the rest of this License. # 8. If the distribution and/or use of the Program is # restricted in certain countries either by patents or by # copyrighted interfaces, the original copyright holder who # places the Program under this License may add an explicit # geographical distribution limitation excluding those # countries, so that distribution is permitted only in or # among countries not thus excluded. In such case, this # License incorporates the limitation as if written in the # body of this License. # 9. The Free Software Foundation may # publish revised and/or new versions of the General Public # License from time to time. Such new versions will be # similar in spirit to the present version, but may differ in # detail to address new problems or concerns. # Each version is given a distinguishing version number. If # the Program specifies a version number of this License # which applies to it and "any later version", you have the # option of following the terms and conditions either of that # version or of any later version published by the Free # Software Foundation. If the Program does not specify a # version number of this License, you may choose any version # ever published by the Free Software Foundation. # 10. If you wish to incorporate parts of the Program into # other free programs whose distribution conditions are # different, write to the author to ask for permission. For # software which is copyrighted by the Free Software # Foundation, write to the Free Software Foundation; we # sometimes make exceptions for this. Our decision will be # guided by the two goals of preserving the free status of # all derivatives of our free software and of promoting the # sharing and reuse of software generally. # NO WARRANTY # 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE # IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY # APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING # THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE # PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER # EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A # PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND # PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM # PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY # SERVICING, REPAIR OR CORRECTION. # 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR # AGREED TO IN WRITING WILL ANY COPYRIGHT HOLDER, OR ANY # OTHER PARTY WHO MAY MODIFY AND/OR REDISTRIBUTE THE PROGRAM # AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING # ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES # ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM # (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING # RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD # PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY # OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS # BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. # END OF TERMS AND CONDITIONS # How to Apply These Terms to Your New Programs # If you develop a new program, and you want it to be of # the greatest possible use to the public, the best way to # achieve this is to make it free software which everyone can # redistribute and change under these terms. # To do so, attach the following notices to the program. # It is safest to attach them to the start of each source # file to most effectively convey the exclusion of warranty; # and each file should have at least the "copyright" line and # a pointer to where the full notice is found. # /* # # Copyright (C) 19yy # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2 of the License, or # (at your option) any later version. # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # You should have received a copy of the GNU General Public License # along with this program; if not, write to the Free Software # Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. # */ # Also add information on how to contact you by electronic # and paper mail. # If the program is interactive, make it output a short # notice like this when it starts in an interactive mode: # Gnomovision version 69, Copyright (C) 19yy name of author # Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. # This is free software, and you are welcome to redistribute it # under certain conditions; type `show c' for details. # The hypothetical commands `show w' and `show c' should show # the appropriate parts of the General Public License. Of # course, the commands you use may be called something other # than `show w' and `show c'; they could even be mouse-clicks # or menu items--whatever suits your program. # You should also get your employer (if you work as a # programmer) or your school, if any, to sign a "copyright # disclaimer" for the program, if necessary. Here is a # sample; alter the names: # Yoyodyne, Inc., hereby disclaims all copyright interest # in the program `Gnomovision' (which makes passes at # compilers) written by James Hacker. # , 1 April 1989 # Ty Coon, President of Vice # This General Public License does not permit incorporating # your program into proprietary programs. If your program is # a subroutine library, you may consider it more useful to # permit linking proprietary applications with the library. # If this is what you want to do, use the GNU Library General # Public License instead of this License.