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Importance Of Fuzzy Logic

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6.1. IMPORTANCE OF FUZZY LOGIC Fuzzy logic is all about the relative importance of precision: use as Fuzzy Logic Toolbox software with MATLAB technical computing software as a tool for solving problems with fuzzy logic. Fuzzy logic is a fascinating area of research because it does a good job of trading off between significance and precision something that humans have been managing for a very long time. In this sense, fuzzy logic is both old and new because, although the modern and methodical science of fuzzy logic is still young, the concept of fuzzy logic relies on age-old skills of human reasoning. Fig 6.1 Fuzzy Description 6.2. USAGE OF FUZZY LOGIC Fuzzy logic is a convenient way to map an input space to an output space. Mapping input to output is the starting point for everything. Consider the following examples:
• With information about how good your service was at a restaurant, a fuzzy logic system can tell you what the tip should be.
• With your specification of how hot you want the water, a fuzzy logic system can adjust the faucet valve to the right setting.
• With information about how far away the subject of your photograph is, a fuzzy logic system can focus the lens for you.

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Between the input and the output, the preceding figure shows a black box that can contain any number of things: fuzzy systems, linear systems, expert systems, neural networks, differential equations, interpolated multi dimensional lookup tables, or even a spiritual advisor, just to name a few of the possible options. Clearly the list could go on and on.Of the dozens of ways to make the black box work, it turns out that fuzzy is often the very best way. As Lotfi Zadeh, who is considered to be the father of fuzzy logic, once remarked: "In almost every case you can build the same product without fuzzy logic, but fuzzy is faster and

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