K. For any section Entitled “Acknowledgements” or “Dedications”, Preserve the Title of the section, and preserve in the section all the substance
and tone of each of the contributor acknowledgements and/or dedications given therein.
L. Preserve all the Invariant Sections of the Document, unaltered in their text and in their titles. Section numbers or the equivalent are not considered
part of the section titles.
M. Delete any section Entitled “Endorsements”. Such a section may not be included in the Modied Version.
N. Do not retitle any existing section to be Entitled “Endorsements” or to conict in title with any Invariant Section.
O. Preserve any Warranty Disclaimers.
If the Modied Version includes new front-matter sections or appendices that qualify as Secondary Sections and contain no material copied from
the Document, you may at your option designate some or all of these sections as invariant. To do this, add their titles to the list of Invariant Sections
in the Modied Version’s license notice. These titles must be distinct from any other section titles.
You may add a section Entitled “Endorsements”, provided it contains nothing but endorsements of your Modied Version by various parties--for
example, statements of peer review or that the text has been approved by an organization as the authoritative denition of a standard.
You may add a passage of up to ve words as a Front-Cover Text, and a passage of up to 25 words as a Back-Cover Text, to the end of the list of
Cover Texts in the Modied Version. Only one passage of Front-Cover Text and one of Back-Cover Text may be added by (or through arrangements
made by) any one entity. If the Document already includes a cover text for the same cover, previously added by you or by arrangement made by
the same entity you are acting on behalf of, you may not add another; but you may replace the old one, on explicit permission from the previous
publisher that added the old one.
The author(s) and publisher(s) of the Document do not by this License give permission to use their names for publicity for or to assert or imply
endorsement of any Modied Version.
COMBINING DOCUMENTS
You may combine the Document with other documents released under this License, under the terms dened in section 4 above for modied versions,
provided that you include in the combination all of the Invariant Sections of all of the original documents, unmodied, and list them all as Invariant
Sections of your combined work in its license notice, and that you preserve all their Warranty Disclaimers.
The combined work need only contain one copy of this License, and multiple identical Invariant Sections may be replaced with a single copy. If
there are multiple Invariant Sections with the same name but dierent contents, make the title of each such section unique by adding at the end
of it, in parentheses, the name of the original author or publisher of that section if known, or else a unique number. Make the same adjustment to
the section titles in the list of Invariant Sections in the license notice of the combined work.
In the combination, you must combine any sections Entitled “History” in the various original documents, forming one section Entitled “History”;
likewise combine any sections Entitled “Acknowledgements”, and any sections Entitled “Dedications”. You must delete all sections Entitled “En-
dorsements”.
COLLECTIONS OF DOCUMENTS
You may make a collection consisting of the Document and other documents released under this License, and replace the individual copies of this
License in the various documents with a single copy that is included in the collection, provided that you follow the rules of this License for verbatim
copying of each of the documents in all other respects.
You may extract a single document from such a collection, and distribute it individually under this License, provided you insert a copy of this License
into the extracted document, and follow this License in all other respects regarding verbatim copying of that document.
AGGREGATION WITH INDEPENDENT WORKS
A compilation of the Document or its derivatives with other separate and independent documents or works, in or on a volume of a storage or distri-
bution medium, is called an “aggregate” if the copyright resulting from the compilation is not used to limit the legal rights of the compilation’s
users beyond what the individual works permit. When the Document is included in an aggregate, this License does not apply to the other works in
the aggregate which are not themselves derivative works of the Document.
If the Cover Text requirement of section 3 is applicable to these copies of the Document, then if the Document is less than one half of the entire
aggregate, the Document’s Cover Texts may be placed on covers that bracket the Document within the aggregate, or the electronic equivalent of
covers if the Document is in electronic form. Otherwise they must appear on printed covers that bracket the whole aggregate.
TRANSLATION
Translation is considered a kind of modication, so you may distribute translations of the Document under the terms of section 4. Replacing Invariant
Sections with translations requires special permission from their copyright holders, but you may include translations of some or all Invariant Sections
in addition to the original versions of these Invariant Sections. You may include a translation of this License, and all the license notices in the Doc-
ument, and any Warranty Disclaimers, provided that you also include the original English version of this License and the original versions of those
notices and disclaimers. In case of a disagreement between the translation and the original version of this License or a notice or disclaimer, the
original version will prevail.
If a section in the Document is Entitled “Acknowledgements”, “Dedications”, or “History”, the requirement (section 4) to Preserve its Title (section
1) will typically require changing the actual title.
TERMINATION
You may not copy, modify, sublicense, or distribute the Document except as expressly provided for under this License. Any other attempt to copy,
modify, sublicense or distribute the Document 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.
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 dier 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 species 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 specied version or of any later version
that has been published (not as a draft) by the Free Software Foundation. If the Document does not specify a version number of this License, you
may choose any version ever published (not as a draft) by the Free Software Foundation.
Help and Troubleshooting 269
