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Lecture note Theory of automata - Lecture 30

Lecture Theory of automata - Lecture 30 includes contents: Deciding whether two languages are equivalent or not, example, deciding whether an FA accept any string or not, method 3, examples, finiteness of a language. | Lecture note Theory of automata - Lecture 30 Lecture 6 Theory Of Automata By Dr. MM Alam Lecture 5 Recap Introduction to Finite Automata Finite Automata representation using Transition tables and using graphs Finite Automata examples a a b 0 b 1 Given an input string an FA will either accept or reject the input based on the following If final state is reached after reading the string the FA will accept the string If the final state is not reachable after reading the individual symbols of a string then FA will reject the string. Construct a regular expression and correspondingly an FA for all words in which a appears tripled if at all. The regular expression is as follows - aaa b a b 1- a 2 a 3 a 5 a b b b b 4 a b 6 Construct a regular expression and correspondingly an FA for all strings that end in a double letter. The regular expression is as follows - a b aa bb a a 1- 1 2 b a a b b b a 4 b 3 L1 The language of strings defined over Σ a b beginning with b a b b a a b 1 The language of strings defined over Σ a b not beginning with a . a b b 2 1 a a b 3 JLFAP provides a Hands-on Approach to Formal Languages and Automata. JLFAP Java Formal Languages and Automata Package It is an Instructional tool to learn concepts of Formal Languages and Automata Theory Topics Regular Languages Finite Automata Lecture 6 Summary Finite Automata examples corrections JFLAP Introduction Practical Demonstration of JFLAP