Automata and Formal Language (chapter 7) pot
Automata and Formal Language (chapter 7) pot
... erase A and move to q
k
if receiving a and
at q
j
erase BC and move to q
k
At q
i
erase A and move to q
k
if receiving a and
at q
j
erase B and move to q
m
and
at q
m
erase C and move ... A and move to q
k
if receiving a and
at q
j
erase B and move to q
m
and
at q
m
erase C and move to q
k
(q
i
Aq
k
) → a(q
j
Bq
m
)(q
m
Cq
k
)
2
Pushdown Automata
•
There a...
Automata and Formal Language (chapter 1) pot
... ngôn ngữ hình thức.
Hồ Văn Quân
•
An introduction to formal languages and automata.
Peter Linz
•
Introduction to automata theory, languages, and computation.
John Hopcroft & Jeffrey Ullman
Automaton ... Language (cont’d)
•
Language: a subset L of Σ*
•
Sentence: a string in L
•
Example 1.3: In Example 1.2, L is a language on Σ, w is a
string of Σ but not a sentence in L
Fo...
Automata and Formal Language (chapter 3) ppt
... of the form:
A → xB
A → x
A, B ∈ V and x ∈ T
*
Theorem 3.4
L is a regular language iff there exists a
regular grammar
G such that L = L(G).
Regular Language and
Regular Grammar
Example 3.3
r ... Recalled
•
Formal grammar:
G = (V, T, S, P)
V: finite set of variables
T: finite set of terminal symbols
S∈V: start variable
P: finite set of productions
Equivalent Regular Expression
r
1...
Automata and Formal Language (chapter 4) pdf
... F and y ∈ L
2
q
1
q
2
b
b
Questions about RL
2. Is there an algorithm to determine whether or not a regular language is
empty, finite, or infinite?.
Yes.
Right Quotient
Let L
1
and L
2
be languages ... L
1
and
y ∈ L
2
}
Homomorphism (cont’d)
If L is a language on Σ, then its homomorphic image is defined as:
h(L) = {h(w): w ∈ L}
Questions about RL
3. Given two regular languages L...
Automata and Formal Language (chapter 6) ppt
... (cont’d)
Proof:
•
Draw the variable dependency graph for G
1
and find all
variables that cannot be reached from S.
•
Remove those variables and the productions involving them.
•
Eliminate any terminal ... V
1
.
•
Reduce the length of the right sides of the productions:
1. Put all productions A → a and A → BC into P^.
2. Repeat until no more productions are added to P^:
For each...
Automata and Formal Language
... ngôn ngữ hình thức.
Hồ Văn Quân
•
An introduction to formal languages and automata.
Peter Linz
•
Introduction to automata theory, languages, and computation.
John Hopcroft & Jeffrey Ullman
Storage
A ... configuration
Generated Language
G = (V, T, S, P)
L(G) = {w∈T* | S ⇒* w}
•
Example 1.8:
Take into consideration the grammar given in
Example 1.6:
L(G) = {a
n
b
n
| n ≥ 0}...
Automata and Formal language docx
... Ab
A → aAb
A → λ
3
Formal Languages & Automata
A formal language:
Is an abstraction of the general characteristics of programming languages.
Consists of a set of symbols and some formation ... trên.
15
Languages
Language concatenation:
L1L2 = {xy | x∈L1, y∈L2}
L
n
= L L L (n times)
L
0
= {λ}
13
Languages
Language: a subset L of Σ
*
Word or Sentence: a string in L...
Routing Protocols and Concepts: Chapter 7 potx
... RIPv2
Enabling and Verifying RIPv2
Auto-Summary and RIPv2
Disabling Auto-Summary in
RIPv2
Verifying RIPv2 Updates
VLSM and CIDR
RIPv2 and VLSM
RIPv2 and CIDR
Verifying and Troubleshooting ... RFC 1918 and Cisco Example addresses for all topologies.
Private Addresses and Cisco Example Addresses
RFC 1918 Private Addresses
Cisco Example Addresses
20
RIPv1 on bo...
Fate of Pharmaceuticals in the Environment and in Water Treatment Systems - Chapter 7 pot
... studies.
RabølleandSpliid(2000)performedaleachingstudywithtylosininpackedsoil
coresoftwosoiltypes:asandyloamandasandytype.TheK
d
values described for
thosesoilswere12 8and1 0.8,respectively,anddesorptionwasreportedat1 3and
26%. ... and Kilpper-Balz, 1987; Schaechter, 2000). Both organ
-
is
msarepotentiallypathogenicandcandevelopresistancetoantibioticsandhavethe
potentialtotransferresistanc...
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