< Computability and Complexity < Formal Languages < Chomsky Hierarchy
Sample DFA inputs
These examples are for use with the perl DFA emulator provided at the bottom of Computability_and_Complexity/Formal_Languages/Chomsky_Hierarchy/Regular_Languages. That page also contains a description of what a DFA is and how it works.
The specifications for a machine that accepts all strings ending in b: :States:
q1 q2 q3
:Start State:
q1
:Accept States:
q3
:alphabet:
a b
:rules:
q1 a q2 q1 b q3 q2 a q2 q2 b q3 q3 a q2 q3 b q3
Some sample words:
this accepts:
b a b a b
this rejects:
a a b b a a b a
(the empty string)
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