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Article: Fuzzy-logic basics: intuitive rules replace complex math. (includes related article that briefly describes the history and nature of fuzzy logic) (EDN-Design Feature) (Technical)
- Article from:
- EDN
- Article date:
- June 18, 1992
- Author:
CopyrightCOPYRIGHT 1992 Reed Business Information, Inc. (US). This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Although "fuzzy logic" may seem to imply imprecision, it's based on a reliable and rigorous discipline. Fuzzy logic lets you accurately describe control systems in words instead of complicated math.
Fuzzy logic, based on fuzzy set theory, allows you to express the operational and control laws of a system linguistically--in words. Although such an approach might seem inadequate, it can actually be superior to (and much easier than) a more mathematical approach. The main strength of fuzzy set theory, a generalization of classical set theory, is that it excels in dealing with imprecison.
In classical set theory, an item is either a part of a set or not. ...