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Mealy machines provide a rudimentary mathematical model for cipher machines. Considering the input and output alphabet the Latin alphabet , for example, then a Mealy machine can be designed that given a string of letters (a sequence of inputs) can process it into a ciphered string (a sequence of outputs).
Around 1996, FLAP was converted to Java and the first paper mentioned JFLAP was published in 1996 [5] Along the way, other tools were developed as stand alone tools and then later integrated into JFLAP. For example, a paper in 1999 described how JFLAP now allowed one to experiment with construction type proofs, such as converting an NFA to a ...
George H. Mealy (December 31, 1927 – June 21, 2010 in Scituate, Massachusetts) [1] was an American mathematician and computer scientist who invented the namesake Mealy machine, a type of finite state transducer.
Regular languages are a category of languages (sometimes termed Chomsky Type 3) which can be matched by a state machine (more specifically, by a deterministic finite automaton or a nondeterministic finite automaton) constructed from a regular expression. In particular, a regular language can match constructs like "A follows B", "Either A or B ...
In the state-transition table, all possible inputs to the finite-state machine are enumerated across the columns of the table, while all possible states are enumerated across the rows. If the machine is in the state S 1 (the first row) and receives an input of 1 (second column), the machine will stay in the state S 1.
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A Mealy machine can be used as a cryptographic machine. Given an alphabet A, it is said to be possible to process a word from this alphabet into a word from alphabet B if there exists a Mealy machine which does this. Using mathematical notation, M - Mealy machine, -> - to process: thus a tuple (M, ->).
Such a machine is called queue machine and is Turing-complete. Tape memory: The inputs and outputs of automata are often described as input and output tapes. Some machines have additional working tapes, including the Turing machine, linear bounded automaton, and log-space transducer. Transition function