User's Manual

Table Of Contents

132

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) 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