Master Regular Expressions with 12 Step-by-Step Examples 🧩 | Lecture 37

In this lecture, we solve 12 examples on Regular Expressions (RE) with step-by-step explanations, helping you understand how to construct REs for different language constraints.

🔹 What You’ll Learn:
✅ Basics of Regular Expressions (RE) – Understanding symbols and operations.
✅ Solved Examples on Regular Expressions:
🔸 RE for the set {010 + 111}.
🔸 RE for the set {ε, 0, 00, 000, …}.
🔸 RE for all strings starting with 0.
🔸 RE for all strings starting with 0 and ending with 1.
🔸 RE for strings containing an even number of 0’s.
🔸 RE for strings having at least two 0’s.
🔸 RE for strings having at most two 0’s.
🔸 RE for strings with any number of 0’s followed by more 1’s, then followed by any number of 0’s.
🔸 RE for strings where every 0 is preceded by 1.
🔸 RE for strings where an even number of 0’s is followed by an odd number of 1’s.
🔸 RE for strings ending with '00' or '11'.
🔸 RE for strings ending with 'b' or 'ba'.

This video is essential for students studying Theory of Computation (TOC), Regular Expressions, and Automata Theory.

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