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  2. Deterministic finite automaton - Wikipedia

    en.wikipedia.org/wiki/Deterministic_finite_automaton

    An example of a deterministic finite automaton that accepts only binary numbers that are multiples of 3. The state S 0 is both the start state and an accept state. For example, the string "1001" leads to the state sequence S 0, S 1, S 2, S 1, S 0, and is hence accepted.

  3. Powerset construction - Wikipedia

    en.wikipedia.org/wiki/Powerset_construction

    Such an automaton may be defined as a 5-tuple (Q, Σ, T, q 0, F), in which Q is the set of states, Σ is the set of input symbols, T is the transition function (mapping a state and an input symbol to a set of states), q 0 is the initial state, and F is the set of accepting states. The corresponding DFA has states corresponding to subsets of Q.

  4. Nondeterministic finite automaton - Wikipedia

    en.wikipedia.org/wiki/Nondeterministic_finite...

    NFA for * 1 (0|1) 3. A DFA for that language has at least 16 states.. In automata theory, a finite-state machine is called a deterministic finite automaton (DFA), if . each of its transitions is uniquely determined by its source state and input symbol, and

  5. Deterministic automaton - Wikipedia

    en.wikipedia.org/wiki/Deterministic_automaton

    A common deterministic automaton is a deterministic finite automaton (DFA) which is a finite state machine, where for each pair of state and input symbol there is one and only one transition to a next state.

  6. Two-way finite automaton - Wikipedia

    en.wikipedia.org/wiki/Two-way_finite_automaton

    A two-way deterministic finite automaton (2DFA) is an abstract machine, a generalized version of the deterministic finite automaton (DFA) which can revisit characters already processed. As in a DFA, there are a finite number of states with transitions between them based on the current character, but each transition is also labelled with a value ...

  7. Turing machine equivalents - Wikipedia

    en.wikipedia.org/wiki/Turing_machine_equivalents

    The instructions (if a universal machine), and the "input" and "out" were written only on "F-squares", and markers were to appear on "E-squares". In essence he divided his machine into two tapes that always moved together. The instructions appeared in a tabular form called "5-tuples" and were not executed sequentially.

  8. Alternating finite automaton - Wikipedia

    en.wikipedia.org/wiki/Alternating_finite_automaton

    An alternating finite automaton (AFA) is a 5-tuple, (, ... though a DFA for the reverse language can be constructued with only states. Another construction by Fellah ...

  9. Mealy machine - Wikipedia

    en.wikipedia.org/wiki/Mealy_machine

    A Mealy machine is a 6-tuple (,,,,,) consisting of the following: . a finite set of states; a start state (also called initial state) which is an element of a finite set called the input alphabet