Using finite automata for lexical analysis (tokens). Pattern Matching: How text editors search for strings. Switching Theory: The logic behind digital circuits. Proving a language is non-regular using the Pumping Lemma ? Constructing a Pushdown Automaton for a specific grammar?
This section deals with machines that have no memory of the past (or very limited memory). Using finite automata for lexical analysis (tokens)
An Introduction to Automata Theory and Formal Languages by is a widely used textbook in undergraduate computer science programs, particularly in India. It is highly regarded for its beginner-friendly approach, clear explanations, and extensive collection of solved problems. 📘 Book Overview Proving a language is non-regular using the Pumping Lemma
The structure aligns well with the syllabus of major technical universities like AKTU, RGPV, and PTU. An Introduction to Automata Theory and Formal Languages
by Adesh K. Pandey is typically prescribed for undergraduate courses in Indian universities (VTU, JNTU, UPTU, Anna University, etc.). Unlike heavy theoretical tomes (e.g., Hopcroft & Ullman), Pandey’s book is known for its simplified exposition and problem-solving orientation .