Regular Expression in TOC | Language string length exactly 2 #toc #gatecse #automata

Regular Expression (RE) in TOC | Finite Automata| Regular language Previous Lecture: https://youtu.be/2tHGdpM_esg The language accepted by Finite Automata (FA) are represented by simple expression is called as Regular Expression . Formal Definition of Regular Expression: Let Σ be a given alphabet. Then 1. 𝜙,𝜖, and 𝑎 ∈ Σ are all regular expression. These are called primitive regular expression. 2. If 𝑟1, 𝑟2 are regular expressions, then 𝑟1 + 𝑟2, 𝑟1. 𝑟2, 𝑟1∗ and ( 𝑟1) are also regular expressions. 3. A string is a regular expression if and only if it can be derived from the primitive regular expression by a finite number of applications of the rules in (2). Example of some Basic Regular expressions: conversation of Regular Expression to Finite Automata - RE to NFA to DFA to MDFA - Obtained minimized DFA -Obtained NDA - Obtained DFA By @cseacademyahmadsir ⭐ Courses Playlist ⭐ 🔗SYSTEM PROGRAMMING (SP): https://www.youtube.com/playlist?list=PLS6nugESt9lIGSB_qxapdJh46j_5Hwhlq 🔗COMPILER DESIGN | COMPILER | LANGUAGE PROCESSOR: https://www.youtube.com/playlist?list=PLS6nugESt9lLXiC2WFznm4Gly6dykw5Oo 🔗COMPILER DESIGN | COMPILER | LANGUAGE PROCESSOR: https://www.youtube.com/playlist?list=PLS6nugESt9lLXiC2WFznm4Gly6dykw5Oo 🔗DESIGN AND ANALYSIS OF ALGORITHMS (DAA)| ALGORITHM: https://www.youtube.com/playlist?list=PLS6nugESt9lJ2rluFZTYq8YnpRD1rm5Wf 🔗Computer Architecture and Digital System: https://www.youtube.com/playlist?list=PLS6nugESt9lKerCOnI48acy6hwmEJvtEG 🔗COMPUTER GRAPHICS (CG) BY. AHMAD SIR: https://www.youtube.com/playlist?list=PLS6nugESt9lIhGBQstlBiRjIgjC_us7-V #automata #automatatheory #regularexpressions #finiteautomata #dfa #nfa