Formal Languages and Computation: Models and Their Applications gives a clear comprehensive introduction to formal language theory and its applications in computer science. It covers all rudimental topics concerning formal languages and their models especially grammars and automata and sketches the basic ideas underlying the theory of computation including computability decidability and computational complexity. Emphasizing the relationship between theory and application the book describes many real-world applications including computer science engineering techniques for language processing and their implementation. Covers the theory of formal languages and their models including all essential concepts and properties Explains how language models underlie language processors Pays a special attention to programming language analyzers such as scanners and parsers based on four language modelsâregular expressions finite automata context-free grammars and pushdown automata Discusses the mathematical notion of a Turing machine as a universally accepted formalization of the intuitive notion of a procedure Reviews the general theory of computation particularly computability and decidability Considers problem-deciding algorithms in terms of their computational complexity measured according to time and space requirements Points out that some problems are decidable in principle but they are in fact intractable problems for absurdly high computational requirements of the algorithms that decide them In short this book represents a theoretically oriented treatment of formal languages and their models with a focus on their applications. It introduces all formalisms concerning them with enough rigors to make all results quite clear and valid. Every complicated mathematic . Language: English