User's Manual

118
We protect your rights with two steps: (1) copyright the software,
and(2)oer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 modied 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 reect
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eect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
modication follow.
Terms & conditions for copying, distribution, & modication
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 modications and/or translated into another language.
(Hereinafter, translation is included without limitation in the
term “modication”.) Each licensee is addressed as “you”.
Activities other than copying, distribution and modication 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