Question

Recall that any Regular Expression can be simulated by an NFA. (a) Using the notation/style given in lecture slides, construct the NFA for the RegEx ((ab)|ab). Clearly show all the Îµ transitions for the closure operator and or operator |. (b) Show that the expression aaaa will NOT be accepted by this machine. To show this, simulate the machine after reading each symbol, including the empty symbol. (c) Show that the expression abab will be accepted by this machine. To show this, simulate the machine after reading each symbol, including the empty symbol.

          Recall that any Regular Expression can be simulated by an NFA.
(a) Using the notation/style given in lecture slides, construct the NFA for the RegEx ((a*b)*|ab*). Clearly show all the Îµ transitions for the closure operator * and or operator |.
(b) Show that the expression aaaa will NOT be accepted by this machine. To show this, simulate the machine after reading each symbol, including the empty symbol.
(c) Show that the expression abab will be accepted by this machine. To show this, simulate the machine after reading each symbol, including the empty symbol.

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Added by Tammy W.

Computer Science and Information Technology

Trishna Knowledge Systems 2018 Edition

Instant Answer

Solved by Expert Akash M

11/27/2023

Step 1

Step 1:** Construct the NFA for the regular expression ((a*b)*|ab*): - Part 1: AB - State diagram: - Start -> q0 -> q1 (loop A) -> q2 (loop B, accept) - Part 2: AB* - State diagram: - Start -> q3 -> a -> q4 (loop B, accept) - Combine both parts: - Show more…

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Recall that any Regular Expression can be simulated by an NFA. (a) Using the notation/style given in lecture slides, construct the NFA for the RegEx ((a*b)*|ab*). Clearly show all the Îµ transitions for the closure operator * and or operator |. (b) Show that the expression aaaa will NOT be accepted by this machine. To show this, simulate the machine after reading each symbol, including the empty symbol. (c) Show that the expression abab will be accepted by this machine. To show this, simulate the machine after reading each symbol, including the empty symbol.

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