COIN-OR::LEMON - Graph Library

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1<appendix id="gfdl">
2<title>GNU Free Documentation License</title>
3<subtitle>Version 1.2, November 2002</subtitle>
5<blockquote id="fsf-copyright">
6 <para>Copyright (C) 2000,2001,2002  Free Software Foundation, Inc.
759 Temple Place, Suite 330, Boston, MA  02111-1307  USA
8Everyone is permitted to copy and distribute verbatim copies
9of this license document, but changing it is not allowed.</para>
12<section id="gfdl-0"><title>PREAMBLE</title>
14<para>The purpose of this License is to make a manual, textbook, or
15other functional and useful document "free" in the sense of freedom: to
16assure everyone the effective freedom to copy and redistribute it, with
17or without modifying it, either commercially or noncommercially.
18Secondarily, this License preserves for the author and publisher a way
19to get credit for their work, while not being considered responsible for
20modifications made by others.</para>
22<para>This License is a kind of "copyleft", which means that derivative
23works of the document must themselves be free in the same sense.  It
24complements the GNU General Public License, which is a copyleft license
25designed for free software.</para>
27<para>We have designed this License in order to use it for manuals for
28free software, because free software needs free documentation: a free
29program should come with manuals providing the same freedoms that the
30software does.  But this License is not limited to software manuals; it
31can be used for any textual work, regardless of subject matter or
32whether it is published as a printed book.  We recommend this License
33principally for works whose purpose is instruction or reference.</para>
36<section id="gfdl-1"><title>APPLICABILITY AND DEFINITIONS</title>
38<para id="gfdl-doc">This License applies to any manual or other work, in
39any medium, that contains a notice placed by the copyright holder saying
40it can be distributed under the terms of this License.  Such a notice
41grants a world-wide, royalty-free license, unlimited in duration, to use
42that work under the conditions stated herein.  The "Document", below,
43refers to any such manual or work.  Any member of the public is a
44licensee, and is addressed as "you".  You accept the license if you
45copy, modify or distribute the work in a way requiring permission under
46copyright law.</para>
48<para id="gfdl-mod-ver">A "Modified Version" of the Document means any
49work containing the Document or a portion of it, either copied verbatim,
50or with modifications and/or translated into another language.</para>
52<para id="gfdl-secnd-sect">A "Secondary Section" is a named appendix or
53a front-matter section of the Document that deals exclusively with the
54relationship of the publishers or authors of the Document to the
55Document's overall subject (or to related matters) and contains nothing
56that could fall directly within that overall subject.  (Thus, if the
57Document is in part a textbook of mathematics, a Secondary Section may
58not explain any mathematics.)  The relationship could be a matter of
59historical connection with the subject or with related matters, or of
60legal, commercial, philosophical, ethical or political position
61regarding them.</para>
63<para id="gfdl-inv-sect">The "Invariant Sections" are certain Secondary
64Sections whose titles are designated, as being those of Invariant
65Sections, in the notice that says that the Document is released under
66this License.  If a section does not fit the above definition of
67Secondary then it is not allowed to be designated as Invariant.  The
68Document may contain zero Invariant Sections.  If the Document does not
69identify any Invariant Sections then there are none.</para>
71<para id="gfdl-cov-text">The "Cover Texts" are certain short passages of
72text that are listed, as Front-Cover Texts or Back-Cover Texts, in the
73notice that says that the Document is released under this License.  A
74Front-Cover Text may be at most 5 words, and a Back-Cover Text may be at
75most 25 words.</para>
77<para id="gfdl-transparent">A "Transparent" copy of the Document means a
78machine-readable copy, represented in a format whose specification is
79available to the general public, that is suitable for revising the
80document straightforwardly with generic text editors or (for images
81composed of pixels) generic paint programs or (for drawings) some widely
82available drawing editor, and that is suitable for input to text
83formatters or for automatic translation to a variety of formats suitable
84for input to text formatters.  A copy made in an otherwise Transparent
85file format whose markup, or absence of markup, has been arranged to
86thwart or discourage subsequent modification by readers is not
87Transparent.  An image format is not Transparent if used for any
88substantial amount of text.  A copy that is not "Transparent" is called
91<para>Examples of suitable formats for Transparent copies include plain
92ASCII without markup, Texinfo input format, LaTeX input format, SGML or
93XML using a publicly available DTD, and standard-conforming simple HTML,
94PostScript or PDF designed for human modification.  Examples of
95transparent image formats include PNG, XCF and JPG.  Opaque formats
96include proprietary formats that can be read and edited only by
97proprietary word processors, SGML or XML for which the DTD and/or
98processing tools are not generally available, and the machine-generated
99HTML, PostScript or PDF produced by some word processors for output
100purposes only.</para>
102<para id="gfdl-title-page">The "Title Page" means, for a printed book,
103the title page itself, plus such following pages as are needed to hold,
104legibly, the material this License requires to appear in the title page.
105For works in formats which do not have any title page as such, "Title
106Page" means the text near the most prominent appearance of the work's
107title, preceding the beginning of the body of the text.</para>
109<para id="gfdl-entitled">A section "Entitled XYZ" means a named subunit
110of the Document whose title either is precisely XYZ or contains XYZ in
111parentheses following text that translates XYZ in another language.
112(Here XYZ stands for a specific section name mentioned below, such as
113"Acknowledgements", "Dedications", "Endorsements", or "History".)  To
114"Preserve the Title" of such a section when you modify the Document
115means that it remains a section "Entitled XYZ" according to this
118<para>The Document may include Warranty Disclaimers next to the notice
119which states that this License applies to the Document.  These Warranty
120Disclaimers are considered to be included by reference in this License,
121but only as regards disclaiming warranties: any other implication that
122these Warranty Disclaimers may have is void and has no effect on the
123meaning of this License.</para>
126<section id="gfdl-2"><title>VERBATIM COPYING</title>
128<para>You may copy and distribute the Document in any medium, either
129commercially or noncommercially, provided that this License, the
130copyright notices, and the license notice saying this License applies to
131the Document are reproduced in all copies, and that you add no other
132conditions whatsoever to those of this License.  You may not use
133technical measures to obstruct or control the reading or further copying
134of the copies you make or distribute.  However, you may accept
135compensation in exchange for copies.  If you distribute a large enough
136number of copies you must also follow the conditions in section 3.
139<para>You may also lend copies, under the same conditions stated above,
140and you may publicly display copies.</para>
143<section id="gfdl-3"><title>COPYING IN QUANTITY</title>
145<para>If you publish printed copies (or copies in media that commonly
146have printed covers) of the Document, numbering more than 100, and the
147Document's license notice requires Cover Texts, you must enclose the
148copies in covers that carry, clearly and legibly, all these Cover Texts:
149Front-Cover Texts on the front cover, and Back-Cover Texts on the back
150cover.  Both covers must also clearly and legibly identify you as the
151publisher of these copies.  The front cover must present the full title
152with all words of the title equally prominent and visible.  You may add
153other material on the covers in addition.  Copying with changes limited
154to the covers, as long as they preserve the title of the Document and
155satisfy these conditions, can be treated as verbatim copying in other
158<para>If the required texts for either cover are too voluminous to fit
159legibly, you should put the first ones listed (as many as fit
160reasonably) on the actual cover, and continue the rest onto adjacent
163<para>If you publish or distribute Opaque copies of the Document
164numbering more than 100, you must either include a machine-readable
165Transparent copy along with each Opaque copy, or state in or with each
166Opaque copy a computer-network location from which the general
167network-using public has access to download using public-standard
168network protocols a complete Transparent copy of the Document, free of
169added material.  If you use the latter option, you must take reasonably
170prudent steps, when you begin distribution of Opaque copies in quantity,
171to ensure that this Transparent copy will remain thus accessible at the
172stated location until at least one year after the last time you
173distribute an Opaque copy (directly or through your agents or retailers)
174of that edition to the public.</para>
176<para>It is requested, but not required, that you contact the authors of
177the Document well before redistributing any large number of copies, to
178give them a chance to provide you with an updated version of the
182<section id="gfdl-4"><title>MODIFICATIONS</title>
184<para>You may copy and distribute a Modified Version of the Document
185under the conditions of sections 2 and 3 above, provided that you
186release the Modified Version under precisely this License, with the
187Modified Version filling the role of the Document, thus licensing
188distribution and modification of the Modified Version to whoever
189possesses a copy of it.  In addition, you must do these things in the
190Modified Version:</para>
192<orderedlist id="gfdl-modif-cond" numeration="upperalpha">
193<listitem><simpara>Use in the Title Page (and on the covers, if any) a
194  title distinct from that of the Document, and from those of previous
195  versions (which should, if there were any, be listed in the History
196  section of the Document).  You may use the same title as a previous
197  version if the original publisher of that version gives permission.
199<listitem><simpara>List on the Title Page, as authors, one or more
200  persons or entities responsible for authorship of the modifications in
201  the Modified Version, together with at least five of the principal
202  authors of the Document (all of its principal authors, if it has fewer
203  than five), unless they release you from this requirement.
205<listitem><simpara>State on the Title page the name of the publisher of
206  the Modified Version, as the publisher.</simpara></listitem>
207<listitem><simpara>Preserve all the copyright notices of the Document.
209<listitem><simpara>Add an appropriate copyright notice for your
210  modifications adjacent to the other copyright notices.
212<listitem><simpara>Include, immediately after the copyright notices, a
213  license notice giving the public permission to use the Modified
214  Version under the terms of this License, in the form shown in the
215  <link linkend="gfdl-addendum">Addendum</link> below.
217<listitem><simpara>Preserve in that license notice the full lists of
218  Invariant Sections and required Cover Texts given in the Document's
219  license notice.</simpara></listitem>
220<listitem><simpara>Include an unaltered copy of this License.
222<listitem><simpara>Preserve the section Entitled "History", Preserve its
223  Title, and add to it an item stating at least the title, year, new
224  authors, and publisher of the Modified Version as given on the Title
225  Page.  If there is no section Entitled "History" in the Document,
226  create one stating the title, year, authors, and publisher of the
227  Document as given on its Title Page, then add an item describing the
228  Modified Version as stated in the previous sentence.
230<listitem><simpara>Preserve the network location, if any, given in the
231  Document for public access to a Transparent copy of the Document, and
232  likewise the network locations given in the Document for previous
233  versions it was based on.  These may be placed in the "History"
234  section.  You may omit a network location for a work that was
235  published at least four years before the Document itself, or if the
236  original publisher of the version it refers to gives permission.
238<listitem><simpara>For any section Entitled "Acknowledgements" or
239  "Dedications", Preserve the Title of the section, and preserve in the
240  section all the substance and tone of each of the contributor
241  acknowledgements and/or dedications given therein.
243<listitem><simpara>Preserve all the Invariant Sections of the Document,
244  unaltered in their text and in their titles.  Section numbers or the
245  equivalent are not considered part of the section titles.
247<listitem><simpara>Delete any section Entitled "Endorsements".
248  Such a section may not be included in the Modified Version.
250<listitem><simpara>Do not retitle any existing section to be Entitled
251  "Endorsements" or to conflict in title with any Invariant Section.
253<listitem><simpara>Preserve any Warranty Disclaimers.
257<para>If the Modified Version includes new front-matter sections or
258appendices that qualify as Secondary Sections and contain no material
259copied from the Document, you may at your option designate some or all
260of these sections as invariant.  To do this, add their titles to the
261list of Invariant Sections in the Modified Version's license notice.
262These titles must be distinct from any other section titles.</para>
264<para>You may add a section Entitled "Endorsements", provided it
265contains nothing but endorsements of your Modified Version by various
266parties--for example, statements of peer review or that the text has
267been approved by an organization as the authoritative definition of a
270<para>You may add a passage of up to five words as a Front-Cover Text,
271and a passage of up to 25 words as a Back-Cover Text, to the end of the
272list of Cover Texts in the Modified Version.  Only one passage of
273Front-Cover Text and one of Back-Cover Text may be added by (or through
274arrangements made by) any one entity.  If the Document already includes
275a cover text for the same cover, previously added by you or by
276arrangement made by the same entity you are acting on behalf of, you may
277not add another; but you may replace the old one, on explicit permission
278from the previous publisher that added the old one.</para>
280<para>The author(s) and publisher(s) of the Document do not by this
281License give permission to use their names for publicity for or to
282assert or imply endorsement of any Modified Version.</para>
285<section id="gfdl-5"><title>COMBINING DOCUMENTS</title>
287<para>You may combine the Document with other documents released under
288this License, under the terms defined in <link linkend="gfdl-4">section
2894</link> above for modified versions, provided that you include in the
290combination all of the Invariant Sections of all of the original
291documents, unmodified, and list them all as Invariant Sections of your
292combined work in its license notice, and that you preserve all their
293Warranty Disclaimers.</para>
295<para>The combined work need only contain one copy of this License, and
296multiple identical Invariant Sections may be replaced with a single
297copy.  If there are multiple Invariant Sections with the same name but
298different contents, make the title of each such section unique by adding
299at the end of it, in parentheses, the name of the original author or
300publisher of that section if known, or else a unique number.  Make the
301same adjustment to the section titles in the list of Invariant Sections
302in the license notice of the combined work.</para>
304<para>In the combination, you must combine any sections Entitled
305"History" in the various original documents, forming one section
306Entitled "History"; likewise combine any sections Entitled
307"Acknowledgements", and any sections Entitled "Dedications".  You must
308delete all sections Entitled "Endorsements".</para>
311<section id="gfdl-6"><title>COLLECTIONS OF DOCUMENTS</title>
313<para>You may make a collection consisting of the Document and other
314documents released under this License, and replace the individual copies
315of this License in the various documents with a single copy that is
316included in the collection, provided that you follow the rules of this
317License for verbatim copying of each of the documents in all other
320<para>You may extract a single document from such a collection, and
321distribute it individually under this License, provided you insert a
322copy of this License into the extracted document, and follow this
323License in all other respects regarding verbatim copying of that
327<section id="gfdl-7"><title>AGGREGATION WITH INDEPENDENT WORKS</title>
329<para>A compilation of the Document or its derivatives with other
330separate and independent documents or works, in or on a volume of a
331storage or distribution medium, is called an "aggregate" if the
332copyright resulting from the compilation is not used to limit the legal
333rights of the compilation's users beyond what the individual works
334permit.  When the Document is included in an aggregate, this License does
335not apply to the other works in the aggregate which are not themselves
336derivative works of the Document.</para>
338<para>If the Cover Text requirement of section 3 is applicable to these
339copies of the Document, then if the Document is less than one half of
340the entire aggregate, the Document's Cover Texts may be placed on covers
341that bracket the Document within the aggregate, or the electronic
342equivalent of covers if the Document is in electronic form.  Otherwise
343they must appear on printed covers that bracket the whole
347<section id="gfdl-8"><title>TRANSLATION</title>
349<para>Translation is considered a kind of modification, so you may
350distribute translations of the Document under the terms of section 4.
351Replacing Invariant Sections with translations requires special
352permission from their copyright holders, but you may include
353translations of some or all Invariant Sections in addition to the
354original versions of these Invariant Sections.  You may include a
355translation of this License, and all the license notices in the
356Document, and any Warranty Disclaimers, provided that you also include
357the original English version of this License and the original versions
358of those notices and disclaimers.  In case of a disagreement between the
359translation and the original version of this License or a notice or
360disclaimer, the original version will prevail.</para>
362<para>If a section in the Document is Entitled "Acknowledgements",
363"Dedications", or "History", the requirement (section 4) to Preserve its
364Title (section 1) will typically require changing the actual
368<section id="gfdl-9"><title>TERMINATION</title>
370<para>You may not copy, modify, sublicense, or distribute the Document
371except as expressly provided for under this License.  Any other attempt
372to copy, modify, sublicense or distribute the Document is void, and will
373automatically terminate your rights under this License.  However,
374parties who have received copies, or rights, from you under this License
375will not have their licenses terminated so long as such parties remain
376in full compliance.</para>
379<section id="gfdl-10"><title>FUTURE REVISIONS OF THIS LICENSE</title>
381<para>The Free Software Foundation may publish new, revised versions of
382the GNU Free Documentation License from time to time.  Such new versions
383will be similar in spirit to the present version, but may differ in
384detail to address new problems or concerns.  See
387<para>Each version of the License is given a distinguishing version
388number.  If the Document specifies that a particular numbered version of
389this License "or any later version" applies to it, you have the option
390of following the terms and conditions either of that specified version
391or of any later version that has been published (not as a draft) by the
392Free Software Foundation.  If the Document does not specify a version
393number of this License, you may choose any version ever published (not
394as a draft) by the Free Software Foundation.</para>
397<section id="gfdl-addendum"><title>ADDENDUM: How to use this License for
398  your documents</title>
400<para>To use this License in a document you have written, include a copy
401of the License in the document and put the following copyright and
402license notices just after the title page:</para>
404<blockquote id="copyright-sample"><para>
405    Copyright (c)  YEAR  YOUR NAME.
406    Permission is granted to copy, distribute and/or modify this document
407    under the terms of the GNU Free Documentation License, Version 1.2
408    or any later version published by the Free Software Foundation;
409    with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts.
410    A copy of the license is included in the section entitled "GNU
411    Free Documentation License".
414<para>If you have Invariant Sections, Front-Cover Texts and Back-Cover
415Texts, replace the "with...Texts." line with this:</para>
417<blockquote id="inv-cover-sample"><para>
418    with the Invariant Sections being LIST THEIR TITLES, with the
419    Front-Cover Texts being LIST, and with the Back-Cover Texts being LIST.
422<para>If you have Invariant Sections without Cover Texts, or some other
423combination of the three, merge those two alternatives to suit the
426<para>If your document contains nontrivial examples of program code, we
427recommend releasing these examples in parallel under your choice of free
428software license, such as the GNU General Public License, to permit
429their use in free software.</para>
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