Search for tag: "concatenation"

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07:03 ECS 120 4c:2 NFAs can simulate regex_s example ECS 120 4c:2 NFAs can simulate regex_s example	ECS 120 4c:2 NFAs can simulate regex_s example nfa transition epsilon algorithm start union b. singleton cases construction concatenation base star expression goal a. language step steps quicksort From David Doty on March 20th, 2021 1 likes 99 plays 0
08:18 ECS 120 4c:1 NFAs can simulate regex_s proof ECS 120 4c:1 NFAs can simulate regex_s proof	ECS 120 4c:1 NFAs can simulate regex_s proof nfa cases expressions language union base expression r2 string star languages r1 element symbol sigma input decidable proof b. concatenation From David Doty on March 20th, 2021 1 likes 88 plays 0
05:13 ECS 120 3c:4 NFA Kleene star proof ECS 120 3c:4 NFA Kleene star proof	ECS 120 3c:4 NFA Kleene star proof transition epsilon start nfa s. delta thing dfa compliment intersection f1 union star proof anaphase addition transitions n1 concatenation deterministically From David Doty on March 20th, 2021 1 likes 66 plays 0
08:20 ECS 120 3c:1 NFA Kleene star example ECS 120 3c:1 NFA Kleene star example	ECS 120 3c:1 NFA Kleene star example nfa epsilon language start star transition problem string input strings thing deterministically idea concatenation dfa l. computation middle bunch things From David Doty on March 20th, 2021 1 likes 105 plays 0
06:02 ECS 120 3b:4 NFA concatenation example ECS 120 3b:4 NFA concatenation example	ECS 120 3b:4 NFA concatenation example string n1 mod input language nfa transition bit dfa point awhile n2 r2 effect thing condition binary concatenation power process From David Doty on March 20th, 2021 1 likes 105 plays 0
08:45 ECS 120 3b:2 gotchas-multiple union or… ECS 120 3b:2 gotchas-multiple union or intersection	ECS 120 3b:2 gotchas-multiple union or intersection union dfa string language languages d1 intersection d2 closure star input start switch decidable strings problem concatenation ability gotcha thing From David Doty on March 20th, 2021 1 likes 84 plays 0
12:59 ECS 120 2a:4 small examples ECS 120 2a:4 small examples	ECS 120 2a:4 small examples errata: At 2:08, I incorrectly identified the set decided by the regex Sigma^* 1 Sigma^*. I said it would be "very similar" to above, but it has an important difference. Assuming Sigma… epsilon star string union strings sigma identity expression symbol words pause concatenation cases alphabet expressions thing algebra middle zeros language From David Doty on March 20th, 2021 1 likes 125 plays 0
10:01 ECS 120 2a:3 conventions and the tree view of… ECS 120 2a:3 conventions and the tree view of regex_s	ECS 120 2a:3 conventions and the tree view of regex_s expression union concatenation star thing precedence times expressions parentheses operations language string bit tree associativity base left b. things dfa From David Doty on March 20th, 2021 1 likes 105 plays 0
10:23 ECS 120 2a:2 regex formal definition ECS 120 2a:2 regex formal definition	ECS 120 2a:2 regex formal definition string symbol expression language parentheses alphabet cases symbols r2 star r1 concatenation base union expressions input syntax definition operator rejects From David Doty on March 20th, 2021 1 likes 132 plays 0