Language of this finite state automaton?
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What would be the formal definition of the language for the following Finite State Automaton?
automata finite-state-machine
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show 2 more comments
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What would be the formal definition of the language for the following Finite State Automaton?
automata finite-state-machine
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4
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Finite sequences of $a$'s and $b$'s that either end with a $b$ or end with $ba$.
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– irchans
Jan 15 at 19:29
1
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Is the word $b$ accepted or rejected by this automaton? What about $bab$?
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– Cheyne H
Jan 15 at 19:31
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@irchans The string $b$ wouldn't qualify as an accepted word right? Since it can also be returning to state $q_0$?
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– Ansar Al
Jan 15 at 19:31
2
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@CheyneH This is a nondeterministic finite state automaton, for which multiple (or no) transitions for a given pair of state and symbol is well-defined.
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– Math1000
Jan 15 at 19:42
2
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Just "$b$" is fine. You start in q0 and then transition to q1 and terminate.
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– irchans
Jan 15 at 20:57
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show 2 more comments
$begingroup$
What would be the formal definition of the language for the following Finite State Automaton?
automata finite-state-machine
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What would be the formal definition of the language for the following Finite State Automaton?
automata finite-state-machine
automata finite-state-machine
asked Jan 15 at 19:21
Ansar AlAnsar Al
466
466
4
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Finite sequences of $a$'s and $b$'s that either end with a $b$ or end with $ba$.
$endgroup$
– irchans
Jan 15 at 19:29
1
$begingroup$
Is the word $b$ accepted or rejected by this automaton? What about $bab$?
$endgroup$
– Cheyne H
Jan 15 at 19:31
$begingroup$
@irchans The string $b$ wouldn't qualify as an accepted word right? Since it can also be returning to state $q_0$?
$endgroup$
– Ansar Al
Jan 15 at 19:31
2
$begingroup$
@CheyneH This is a nondeterministic finite state automaton, for which multiple (or no) transitions for a given pair of state and symbol is well-defined.
$endgroup$
– Math1000
Jan 15 at 19:42
2
$begingroup$
Just "$b$" is fine. You start in q0 and then transition to q1 and terminate.
$endgroup$
– irchans
Jan 15 at 20:57
|
show 2 more comments
4
$begingroup$
Finite sequences of $a$'s and $b$'s that either end with a $b$ or end with $ba$.
$endgroup$
– irchans
Jan 15 at 19:29
1
$begingroup$
Is the word $b$ accepted or rejected by this automaton? What about $bab$?
$endgroup$
– Cheyne H
Jan 15 at 19:31
$begingroup$
@irchans The string $b$ wouldn't qualify as an accepted word right? Since it can also be returning to state $q_0$?
$endgroup$
– Ansar Al
Jan 15 at 19:31
2
$begingroup$
@CheyneH This is a nondeterministic finite state automaton, for which multiple (or no) transitions for a given pair of state and symbol is well-defined.
$endgroup$
– Math1000
Jan 15 at 19:42
2
$begingroup$
Just "$b$" is fine. You start in q0 and then transition to q1 and terminate.
$endgroup$
– irchans
Jan 15 at 20:57
4
4
$begingroup$
Finite sequences of $a$'s and $b$'s that either end with a $b$ or end with $ba$.
$endgroup$
– irchans
Jan 15 at 19:29
$begingroup$
Finite sequences of $a$'s and $b$'s that either end with a $b$ or end with $ba$.
$endgroup$
– irchans
Jan 15 at 19:29
1
1
$begingroup$
Is the word $b$ accepted or rejected by this automaton? What about $bab$?
$endgroup$
– Cheyne H
Jan 15 at 19:31
$begingroup$
Is the word $b$ accepted or rejected by this automaton? What about $bab$?
$endgroup$
– Cheyne H
Jan 15 at 19:31
$begingroup$
@irchans The string $b$ wouldn't qualify as an accepted word right? Since it can also be returning to state $q_0$?
$endgroup$
– Ansar Al
Jan 15 at 19:31
$begingroup$
@irchans The string $b$ wouldn't qualify as an accepted word right? Since it can also be returning to state $q_0$?
$endgroup$
– Ansar Al
Jan 15 at 19:31
2
2
$begingroup$
@CheyneH This is a nondeterministic finite state automaton, for which multiple (or no) transitions for a given pair of state and symbol is well-defined.
$endgroup$
– Math1000
Jan 15 at 19:42
$begingroup$
@CheyneH This is a nondeterministic finite state automaton, for which multiple (or no) transitions for a given pair of state and symbol is well-defined.
$endgroup$
– Math1000
Jan 15 at 19:42
2
2
$begingroup$
Just "$b$" is fine. You start in q0 and then transition to q1 and terminate.
$endgroup$
– irchans
Jan 15 at 20:57
$begingroup$
Just "$b$" is fine. You start in q0 and then transition to q1 and terminate.
$endgroup$
– irchans
Jan 15 at 20:57
|
show 2 more comments
1 Answer
1
active
oldest
votes
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Your language consists of all words over ${a,b}$ ending in $b$ or in $ba$. You can write it as a regular expression:
$$ (a+b)^*b(epsilon + a). $$
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1 Answer
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1 Answer
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oldest
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active
oldest
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$begingroup$
Your language consists of all words over ${a,b}$ ending in $b$ or in $ba$. You can write it as a regular expression:
$$ (a+b)^*b(epsilon + a). $$
$endgroup$
add a comment |
$begingroup$
Your language consists of all words over ${a,b}$ ending in $b$ or in $ba$. You can write it as a regular expression:
$$ (a+b)^*b(epsilon + a). $$
$endgroup$
add a comment |
$begingroup$
Your language consists of all words over ${a,b}$ ending in $b$ or in $ba$. You can write it as a regular expression:
$$ (a+b)^*b(epsilon + a). $$
$endgroup$
Your language consists of all words over ${a,b}$ ending in $b$ or in $ba$. You can write it as a regular expression:
$$ (a+b)^*b(epsilon + a). $$
answered Jan 16 at 21:17
Yuval FilmusYuval Filmus
48.6k471145
48.6k471145
add a comment |
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4
$begingroup$
Finite sequences of $a$'s and $b$'s that either end with a $b$ or end with $ba$.
$endgroup$
– irchans
Jan 15 at 19:29
1
$begingroup$
Is the word $b$ accepted or rejected by this automaton? What about $bab$?
$endgroup$
– Cheyne H
Jan 15 at 19:31
$begingroup$
@irchans The string $b$ wouldn't qualify as an accepted word right? Since it can also be returning to state $q_0$?
$endgroup$
– Ansar Al
Jan 15 at 19:31
2
$begingroup$
@CheyneH This is a nondeterministic finite state automaton, for which multiple (or no) transitions for a given pair of state and symbol is well-defined.
$endgroup$
– Math1000
Jan 15 at 19:42
2
$begingroup$
Just "$b$" is fine. You start in q0 and then transition to q1 and terminate.
$endgroup$
– irchans
Jan 15 at 20:57