Homework Assignment 14
CS 4810 Spring 2012
Due at the start of class on Friday May 4.
Your homework will be graded on the clarity of writing, style, and correctness. Please
take a look at the style sheet. Many of you are turning in homework that is very w
Homework Assignment 13
CS 4810 Spring 2012
Due at the start of class on Friday April 27.
Your homework will be graded on the clarity of writing, style, and correctness. Please
take a look at the style sheet. Many of you are turning in homework that is ver
Homework Assignment 12
CS 4810 Spring 2012
Due at the start of class on Friday April 20.
Your homework will be graded on the clarity of writing, style, and correctness. Please
take a look at the style sheet. Many of you are turning in homework that is ver
Homework Assignment 11
CS 4810 Spring 2012
Due at the start of class on Friday April 13.
Your homework will be graded on the clarity of writing, style, and correctness. Please
take a look at the style sheet. Many of you are turning in homework that is ver
Homework Assignment 10
CS 4810 Spring 2012
Due at the start of class on Friday April 6.
Your homework will be graded on the clarity of writing, style, and correctness. Please
take a look at the style sheet. Many of you are turning in homework that is very
Homework Assignment 9
CS 4810 Spring 2012
Due at the start of class on Friday March 30.
Your homework will be graded on the clarity of writing, style, and correctness. Please
take a look at the style sheet. Many of you are turning in homework that is very
Homework Assignment 8
Due at the start of class on Friday March 16.
Your homework will be graded on the clarity of writing, style, and correctness. Please
take a look at the style sheet. Many of you are turning in homework that is very well
styled and the
Homework Assignment 7
Due at the start of class on Friday March 9.
Your homework will be graded on the clarity of writing, style, and correctness.
2
1. Prove that cfw_0i |i 1 (00) not regular. Work out your proof and then carefully
write it up. Credit wil
Homework Assignment 6
Due at the start of class on Friday March 2.
Your homework will be graded on the clarity of writing, style, and correctness.
1. Write a context-free grammar for the set cfw_ai bj ck |i j or j k .
2. Write a context-free grammar for t
Homework Assignment 5
Due at the start of class on Friday Feb 24
Your homework will be graded on the clarity of writing, style, and correctness.
1. (a) A regular substitution replaces a symbol a by a regular set Ra . Prove that the
class of regular sets i
Homework Assignment 4
Due at the start of class on Friday Feb 17
Your homework will be graded on the clarity of writing, style and correctness.
1. Let L = (00 + 1) . Let h be the homomorphism h(a) = 01 and h(b) = 10. What is
h1 (L)?
2. In class using homo
Homework Assignment 3
Due at the start of class on Friday Feb 10
Your homework will be graded on the clarity of writing, style and correctness.
1. Describe the set of strings denoted by the regular expression (0 1 ) .
2. Write a regular expression for the
Homework Assignment 2
Due at the start of class on Friday Feb 3
Your homework will be graded on the clarity of writing, style and correctness.
1. Design a nite automaton that accepts all strings of 0s and 1s that do not contain
two copies of the any subst
Homework Assignment 1
Due at the start of class on Friday Jan 27
Your homework will be graded on the clarity of writing, style and correctness.
1. Describe in English the set strings cfw_10n 10n |n 1 . List all strings in the set of
length ten or less.
2.