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Fuzzy Control Language - Revision history
2026-05-05T01:52:01Z
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imported>Bender the Bot: /* External links */ HTTP to HTTPS for SourceForge
2025-08-09T19:58:16Z
<p><span class="autocomment">External links: </span> HTTP to HTTPS for <a href="/wiki143/index.php?title=SourceForge" title="SourceForge">SourceForge</a></p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Previous revision</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 19:58, 9 August 2025</td>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* [http://ffll.sourceforge.net Free Fuzzy Logic Library (FFLL)], an implementation library written in C++.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* [http://ffll.sourceforge.net Free Fuzzy Logic Library (FFLL)], an implementation library written in C++.</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* [http://jfuzzylogic.sourceforge.net JFuzzyLogic], open source FCL + Fuzzy Logic Package (sourceforge, java)</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* [http://jfuzzylogic.sourceforge.net JFuzzyLogic], open source FCL + Fuzzy Logic Package (sourceforge, java)</div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>* [<del style="font-weight: bold; text-decoration: none;">http</del>://sourceforge.net/projects/awifuzz AwiFuzz], open source implementation written in C++ covering all three levels of IEC 61131-7 Fuzzy Controller Language </div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>* [<ins style="font-weight: bold; text-decoration: none;">https</ins>://sourceforge.net/projects/awifuzz AwiFuzz], open source implementation written in C++ covering all three levels of IEC 61131-7 Fuzzy Controller Language </div></td></tr>
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imported>Bender the Bot
http://debianws.lexgopc.com/wiki143/index.php?title=Fuzzy_Control_Language&diff=576141&oldid=prev
imported>Boleyn: /* External links */
2024-04-22T17:55:38Z
<p><span class="autocomment">External links</span></p>
<p><b>New page</b></p><div>{{unref |date=April 2024}}<br />
'''Fuzzy Control Language''', or '''FCL''', is a language for implementing [[fuzzy logic]], especially [[fuzzy control]]. It was standardized by IEC 61131-7. It is a [[domain-specific programming language]]: it has no features unrelated to fuzzy logic, so it is impossible to even print "[[Hello world program|Hello, world!]]". Therefore, one does not write a program in FCL, but one may write ''part'' of it in FCL.<br />
<br />
== Example ==<br />
<br />
RULE 0: IF (temperature IS cold) THEN (output IS low)<br />
RULE 1: IF (temperature IS very cold) THEN (output IS high)<br />
<br />
== Limitations ==<br />
<br />
FCL is not an entirely complete fuzzy language, for instance, it does not support "hedges", which are adverbs that modify the set. For instance, the programmer cannot write:<br />
<br />
RULE 0: If (Temperature is VERY COLD) then (Output is VERY HIGH)<br />
<br />
However, the programmer can simply define new sets for "very cold" and "very high". FCL also lacks support for higher-order fuzzy sets, subsets, and so on. None of these features are essential to fuzzy control, although they may be nice to have.<br />
<br />
<br />
==References==<br />
{{reflist}}<br />
<br />
==External links==<br />
* [http://www.fuzzytech.com fuzzyTECH], a commercial fuzzy logic development system containing the specification document for IEC1131-7 (select Fuzzy Application Library)<br />
* [http://www.fuzzytech.com/binaries/ieccd1.pdf IEC 1131-7 CD1] {{Webarchive|url=https://web.archive.org/web/20210304150537/https://www.fuzzytech.com/binaries/ieccd1.pdf |date=2021-03-04 }} IEC 1131-7 CD1 PDF<br />
* [http://code.google.com/p/fuzzylite fuzzylite], A fuzzy logic controller library written in C++.<br />
* [http://ffll.sourceforge.net Free Fuzzy Logic Library (FFLL)], an implementation library written in C++.<br />
* [http://jfuzzylogic.sourceforge.net JFuzzyLogic], open source FCL + Fuzzy Logic Package (sourceforge, java)<br />
* [http://sourceforge.net/projects/awifuzz AwiFuzz], open source implementation written in C++ covering all three levels of IEC 61131-7 Fuzzy Controller Language <br />
*[http://pyfuzzy.sourceforge.net/ pyfuzzy], open source implementation written in python.<br />
<br />
[[Category:Fuzzy logic]]<br />
[[Category:Domain-specific programming languages]]<br />
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imported>Boleyn