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GNU Free Documentation License {#gnu-free-documentation-license .chapter} +================================= + +Version 1.3, 3 November 2008 + ++--------------------------------------+--------------------------------------+ +| | ``` {.display} | +| | Copyright © 2000, 2001, 2002, 2007, | +| | 2008 Free Software Foundation, Inc. | +| | http://fsf.org/ | +| | | +| | Everyone is permitted to copy and di | +| | stribute verbatim copies | +| | of this license document, but changi | +| | ng it is not allowed. | +| | ``` | ++--------------------------------------+--------------------------------------+ + +1. **PREAMBLE** + + The purpose of this License is to make a manual, textbook, or other + functional and useful document *free* in the sense of freedom: to + assure everyone the effective freedom to copy and redistribute it, + with or without modifying it, either commercially + or noncommercially. Secondarily, this License preserves for the + author and publisher a way to get credit for their work, while not + being considered responsible for modifications made by others. + + This License is a kind of “copyleft”, which means that derivative + works of the document must themselves be free in the same sense. It + complements the GNU General Public License, which is a copyleft + license designed for free software. + + We have designed this License in order to use it for manuals for + free software, because free software needs free documentation: a + free program should come with manuals providing the same freedoms + that the software does. But this License is not limited to software + manuals; it can be used for any textual work, regardless of subject + matter or whether it is published as a printed book. We recommend + this License principally for works whose purpose is instruction + or reference. + +2. **APPLICABILITY AND DEFINITIONS** + + This License applies to any manual or other work, in any medium, + that contains a notice placed by the copyright holder saying it can + be distributed under the terms of this License. Such a notice grants + a world-wide, royalty-free license, unlimited in duration, to use + that work under the conditions stated herein. The “Document”, below, + refers to any such manual or work. Any member of the public is a + licensee, and is addressed as “you”. 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If your rights have been terminated and not + permanently reinstated, receipt of a copy of some or all of the same + material does not give you any rights to use it. + +11. **FUTURE REVISIONS OF THIS LICENSE** + + The Free Software Foundation may publish new, revised versions of + the GNU Free Documentation 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. See + <http://www.gnu.org/copyleft/>. + + Each version of the License is given a distinguishing + version number. If the Document specifies that a particular numbered + version of this License “or any later version” applies to it, you + have the option of following the terms and conditions either of that + specified version or of any later version that has been published + (not as a draft) by the Free Software Foundation. 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A + “Massive Multiauthor Collaboration” (or “MMC”) contained in the site + means any set of copyrightable works thus published on the MMC site. + + “CC-BY-SA” means the Creative Commons Attribution-Share Alike 3.0 + license published by Creative Commons Corporation, a not-for-profit + corporation with a principal place of business in San Francisco, + California, as well as future copyleft versions of that license + published by that same organization. + + “Incorporate” means to publish or republish a Document, in whole or + in part, as part of another Document. + + An MMC is “eligible for relicensing” if it is licensed under this + License, and if all works that were first published under this + License somewhere other than this MMC, and subsequently incorporated + in whole or in part into the MMC, (1) had no cover texts or + invariant sections, and (2) were thus incorporated prior to November + 1, 2008. + + The operator of an MMC Site may republish an MMC contained in the + site under CC-BY-SA on the same site at any time before August 1, + 2009, provided the MMC is eligible for relicensing. + +ADDENDUM: How to use this License for your documents {#addendum-how-to-use-this-license-for-your-documents .heading} +---------------------------------------------------- + +To use this License in a document you have written, include a copy of +the License in the document and put the following copyright and license +notices just after the title page: + ++--------------------------------------+--------------------------------------+ +| | ``` {.smallexample} | +| | Copyright (C) year your name. | +| | Permission is granted to copy, distr | +| | ibute and/or modify this document | +| | under the terms of the GNU Free Docu | +| | mentation License, Version 1.3 or | +| | any later version published by the F | +| | ree Software Foundation; with | +| | no Invariant Sections, no Front-Cove | +| | r Texts, and no Back-Cover Texts. | +| | A copy of the license is included in | +| | the section entitled | +| | ``GNU Free Documentation License''. | +| | ``` | ++--------------------------------------+--------------------------------------+ + +If you have Invariant Sections, Front-Cover Texts and Back-Cover Texts, +replace the “with…Texts.” line with this: + ++--------------------------------------+--------------------------------------+ +| | ``` {.smallexample} | +| | with the Invariant Sections bein | +| | g list their titles, with | +| | the Front-Cover Texts being list | +| | , and with the Back-Cover Texts | +| | being list. | +| | ``` | ++--------------------------------------+--------------------------------------+ + +If you have Invariant Sections without Cover Texts, or some other +combination of the three, merge those two alternatives to suit the +situation. + +If your document contains nontrivial examples of program code, we +recommend releasing these examples in parallel under your choice of free +software license, such as the GNU General Public License, to permit +their use in free software. + +------------------------------------------------------------------------ + +This document was generated by *tonghuix* on *March 25, 2016* using +[*texi2html 1.82*](http://www.nongnu.org/texi2html/).\ |