September 29

September 29 - CSCI 2670 Introduction to Theory of...

Info iconThis preview shows pages 1–7. Sign up to view the full content.

View Full Document Right Arrow Icon
CSCI 2670 Introduction to Theory of Computing September 29, 2005
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
September 29, 2005 Agenda Yesterday Turing machines Today Continue Turing Machines
Background image of page 2
September 29, 2005 Announcements Homework due Wednesday I will accept homeworks until 11:00 Thursday Quiz Tuesday Turing machine definition, calculation, and design Tests will be returned next Tuesday Ignore comment about tutorials being cancelled
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
September 29, 2005 Formal definition of a TM Definition: A Turing machine is a 7-tuple (Q, Σ , Γ , δ ,q 0 ,q accept ,q reject ), where Q, Σ , and Γ are finite sets and 1. Q is the set of states, 1. Σ is the input alphabet not containing the special blank symbol ~ 2. Γ is the tape alphabet, where ~ ∈Γ and Σ⊆Γ , 3. δ : Q × Γ→ Q × Γ× {L,R} is the transition function,
Background image of page 4
September 29, 2005 Formal definition of a TM Definition: A Turing machine is a 7-tuple (Q, Σ , Γ , δ ,q 0 ,q accept ,q reject ), where Q, Σ , and Γ are finite sets and 1. q 0 Q is the start state, 2. q accept Q is the accept state, and 3. q reject Q is the reject state, where q reject q accept
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
September 29, 2005 Computing with a TM M receives input w = w 1 w 2 …w n ∈Σ * on leftmost n squares of tape Rest of tape is blank (all ~ symbols) Head position begins at leftmost square of tape
Background image of page 6
Image of page 7
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 02/07/2011 for the course CS 501 taught by Professor Sm during the Spring '11 term at Indiana.

Page1 / 26

September 29 - CSCI 2670 Introduction to Theory of...

This preview shows document pages 1 - 7. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online