ECS20

ECS 20 Discrete Mathematics


Instructor: Kwan-Liu Ma       (ma@cs.ucdavis.edu)

When and Where: 10:30-11:50am, Tuesday and Thursday, 115 Hutchison

More inforamtion


                              Homework and exam solutions can be downloaded from ECS20 course web site at my.ucdavis.edu

Progress in Winter 2009

Date
Lectures
Handouts
Others
1-6
Overview of the course; Logic and proofs
propositions, predicates and quantifiers

HW1 assigned:
Section 1.1 Exercises 2, 8, 10, 16, 24, 28(c)(e), 32 (a)(e);
Section 1.2 Exercises 4(a), 10(a)(b), 20, 22, 30;
Section 1.3 Exercises 10, 16, 26;
Section 1-4 Exercises 6, 8, 16, 28, 36.
1-8
Nested Quantifiers, rules of inference


1-13
Proof methods I


1-15
Proof Methods II

HW1 due!
HW2 assigned:
Section 1-5 Exercises 6, 14;
Section 1-6 Exercises 2, 6, 10, 18, 26;
Section 1-7 Exercises 4, 20;

1-20
Algorithms, the growth of functions, complexity of algorithms*


1-22
Integers and division, number theory*

HW2 due!
HW3 assigned:
Section 2-1 Exercises 4, 18, 20, 24;
Section 2-2 Exercises 4, 20, 26, 30 (a)(b), 36, 46;
Section 2-3 Exercises 2, 12, 18, 26, 32, 36. Section 3-1 Exercises 2, 16, 18;
Section 3-2 Exercises 2, 6, 18, 24;
Section 3-3 Exercises 8, 10, 12;
Section 3-4 Exercises 6, 12, 16, 20.

1-23
Discussion Session: Sets, set operations, function


1-27
Sequences and summations, mathematical induction


1-29
Recursion

HW3 due.
HW4 assigned:
Section 2-4 Exercises 6, 14, 20;
Section 4-1 Exercises 4, 8, 10, 20, 32, 55;
Section 4-3 Exercises 4, 8, 12;
Section 4-4 Exercises 8, 10, 15, 29, 30.

1-30
Discussion Session: Review for midterm exam I


2-3
Midterm Exam I (80 minutes, no book, no notes)
The exam covers 1-1, 1-2, 1-3, 1-4, 1-5, 1-6, 1-7, 2-1, 2-2, 2-3, 3-1, 3-2, 3-3, and 3-4.
Office hours available before the exam:
2-3pm Thursday (1/29) - Ma
1-3pm Monday (2/2) - Hoang
4-6pm Monday (2/2) - Frid


2-5
Counting*

HW4 due.
HW5 assigned:
Section 5-1 Exercises: 4, 8, 14, 22, 28, 42;
Section 5-2 Exercises: 2, 4, 8, 12, 18;
Section 5-3 Exercises: 8, 10, 20, 30;
Section 5-4 Exercises: 4, 6, 28.
2-10
Counting*


2-12
Recurrence relations

HW5 due.
HW6 assigned:
Section 7-1 Exercises: 4, 9, 10, 14, 28;
Section 7-2 Exercises: 4, 6, 8, 24, 30;
Section 7-3 Exercises: 2, 10, 12.
2-17
Divide-and-conquer algorithms, generating functions


2-19
Relations

HW6 due
HW7 assigned:
Section 8-1 Exercises: 1, 3, 5, 9, 17. 31;
Section 8-3 Exercises: 3, 7, 14(a)-(d), 15(b), 22, 23, 27;
Section 8-5 Exercises: 3, 9, 16, 21, 27, 41.

2-24
Equivalence relations, partial orderings


2-26
2nd Midterm Exam (80 minutes, no book, no notes)


3-3
Graphs

HW7 due.
HW8 assigned:
Section 9-1: 2
Section 9-2: 4, 20(a)(b)(c)(d), 29(a)(b)(d), 42
Section 9-3: 2, 4, 10, 12, 14, 16
Section 9-5: 2, 4, 6, 18, 20, 30, 32, 36
Section 9-6: 2, 6
Section 9-7: 5, 6, 8, 12, 14
Section 9-8: 2, 4, 6, 10, 14
Section 10-1: 2, 4, 10
Section 10-3: 8, 10, 12, 14
Section 10-4: 2, 4, 6, 8, 10
Section 10-5: 2, 4, 6

3-5
Graphs


3-10
Trees


3-12
Review

HW8 due.
3-19
Final Exam 8:00am-10:00am, 115 Hutchison