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Give the Myhill graph of your automaton.
(You may use a single node to represent the entire set of symbols of the English alphabet, another to represent the entire set of decimal digits plus underline and another to represent the set of operation symbols. Note that this abbreviation is valid only because the sets are pairwise disjoint.)
b. Give the acyclic paths through your graph.
c. Give the set of simple cycles in your graph. (You do not have to list each rotation of each cycle. One representative for each cycle will do.)
examples of decidable problems
build a TM that enumerate even set of even length string over a
De?nition (Instantaneous Description) (for both DFAs and NFAs) An instantaneous description of A = (Q,Σ, δ, q 0 , F) , either a DFA or an NFA, is a pair h q ,w i ∈ Q×Σ*, where
proof of arden''s theoram
Computation of a DFA or NFA without ε-transitions An ID (q 1 ,w 1 ) computes (qn,wn) in A = (Q,Σ, T, q 0 , F) (in zero or more steps) if there is a sequence of IDs (q 1
Distinguish between Mealy and Moore Machine? Construct a Mealy machine that can output EVEN or ODD According to the total no. of 1's encountered is even or odd.
This close relationship between the SL2 languages and the recognizable languages lets us use some of what we know about SL 2 to discover properties of the recognizable languages.
(c) Can you say that B is decidable? (d) If you somehow know that A is decidable, what can you say about B?
can you plz help with some project ideas relatede to DFA or NFA or anything
One might assume that non-closure under concatenation would imply non closure under both Kleene- and positive closure, since the concatenation of a language with itself is included
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