Fuzzy Control Language: Difference between revisions

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FCL allows the programmer to specify [[fuzzy set]]s, which are lists of points on a graph, as well as IF-THEN rules, for example:
 
RULE 0: IF (Temperature IS Cold) THEN (Output IS High)
 
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:
 
RULE 0: IF (Temperature IS VERY Cold) THEN (Output is VERY High)
 
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.