Understanding Language Acceptance in NFA (Nondeterministic Finite Automata) | Theory of Computation 🎓

Playlist for all videos on this topic: https://www.youtube.com/playlist?list=PLXVjll7-2kRnMt3PCXLAbK2rDh-27t4o8 Acceptance by a NFA Theory of Computation Video lecture for gate exam preparation computer science, Automata Theory, in hindi, lectures, iit, tutorial, Acceptance. of. Input. Strings. by. Automata. An NFA accepts input string x if and only if there is some path in the transition graph from the start state to one NFA accepts if and only if there is some set of transitions that will take it to an accepting state. Equivalently, it rejects, if, no matter what transitions are applied, it would not end in an accepting state. Nondeterministic Finite Automata Nondeterminism gives a machine multiple options for its moves. In a nondeterministic finite automaton (NFA), for each state there can be zero, one, two, or more transitions corresponding to a particular symbol. If NFA gets to state with more than one possible transition corresponding to the input symbol, we say it branches. If NFA gets to a state where there is no valid transition, then that branch dies. An NFA accepts the input string if there exists some choice of transitions that leads to ending in an accept state. Thus, one accepting branch is enough for the overall NFA to accept, but every branch must reject for the overall NFA to reject. This is a model of computation. We write DFA to specify a deterministic finite automaton (the one defined earlier). If type doesn’t matter, we now just write FA. finite automata examples lecture notes finite automata non deterministic finite automata regular expression pushdown automata finite automata tutorial deterministic finite automata nondeterministic finite automata lecture notes finite automata finite automata examples ppt what is finite automata nondeterministic finite automata examples finite automata tutorial finite automata examples with solution deterministic finite automata solved examples finite automata examples pdf pushdown automata examples pushdown automata solved examples pushdown automata tutorial turing machine pushdown automata pdf pushdown automata ppt pushdown automata notes context free grammar example automata deterministic finite automata tutorial finite automata examples how to draw finite automata difference between finite automata transition graph probabilistic finite state automata dfa tutorial finite state automata examples deterministic finite automata solved examples deterministic finite automata problems with solutions deterministic finite automata examples difference between dfa and nfa deterministic finite automata tutorial non deterministic finite automata deterministic finite automata problems deterministic finite automata pdf nondeterministic finite automata examples nondeterministic finite automata tutorial nondeterministic finite automata problems nondeterministic finite automata ppt nondeterministic finite automata to deterministic difference between deterministic and nondeterministic finite automata nondeterministic finite automata exercises nondeterministic finite automata regular expression learning regular languages non deterministic finite automata non deterministic finite automata examples nondeterministic finite automata examples pdf nondeterministic finite automata applications nondeterministic finite automata ppt nondeterministic finite automata are more powerful than deterministic finite automata nondeterministic finite automata to deterministic finite automata nondeterministic finite automata to regular expression finite automata tutorial automata theory questions answers pdf finite automata examples lecture notes finite automata automata theory lecture notes finite automata and formal languages notes finite automata and formal languages formal language and automata theory