User's Manual

144
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, & 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 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 based on the Program (independent of
having been made by running the Program). Whether that is
true depends on what the Program does.