**Instructor:** Igor Pak

pak@math.ucla (add .edu at the end, put Math 61 in the subject line, see more on the bottom of this page)

**Class schedule:** MWF 1:00 - 1:50, WGYOUNG CS24

**Recitation:** Tu or Th 1:00 - 1:50, various locations

**Office Hours:** M 2-4, MS 6125

**Teaching Assistants:** Jordan Greenblatt, Dániel Korándi, Kevin Ventullo (Emails: jsg66, kdano, ventullo at math.ucla.edu)

**TA Office Hours:**TBD

**Textbook:** Richard Johnsonbaugh (RJ), *Discrete mathematics*, 7th Edition (multiple copies on reserve).

Additional reading will be posted on this page if necessary.

**Grading:** All scores and grades will be available on MyUCLA website.
The course grade will be determined by the cumulative percentage of scores at the end of the quarter.
This is calculated by taking the BETTER of the two schemes:

Homeworks: 15%, Best midterm: 20%, Quizzes: 10%, Final: 55%.

**Difficulty:** This is an introductory course in Discrete Mathematics.
The students are expected to learn the theory and solve problems on the homeworks.

The assignments will be posted here (on the course web page) in .pdf format. Unless announced otherwise, you need to return them in writing right before the Wed class. No late assignments will be accepted.

- HA1, due Wed Oct 10, 2012. Solutions: HA1-Sol.
- HA2, due Wed Oct 17, 2012. Solutions: HA2-Sol.
- HA3, due Wed Oct 24, 2012. Solutions: HA3-Sol.
- HA4, due Wed Oct 31, 2012. Solutions: HA4 and HA5-Sol.
- HA5, due Wed Nov 7, 2012.
- HA6, due Wed Nov 14, 2012. Solutions: HA6-Sol (Warning: 11Mb).
- HA7, due Wed Nov 28, 2012. Solutions: HA7-Sol.
- HA8, due Fri Dec 7, 2012 (last day of classes). Solutions: HA8-Sol.

**Warning:** Only selected HA problems will be graded, chosen by the instructor.

There will be two in-class midterms and one final.
**Midterm dates:** Oct 24, Nov 14 (both Wed).

**Final:** Thu, December 13, 2012, 8:00 - 11:00 am.

**Warning:** no calculators, books, notebooks, phones, or any other
equipments is allowed on the exams. The only items allowed are
pens/pencils and erasers. The paper will be provided.

- quiz1. Answers: 5, 7, 2, 12, 3
^{4}. - quiz2. Answers: -3
^{10}, {a_{n}} and {b_{n}}, eq., sym., by contradiction. - quiz3. Answers: 11-choose-7, all of these, (10-choose-7)
^{2}, 7!/4!, (2+3+4)!/2!3!4!. - quiz4. Answers: [F
_{n+1}], [8,9,10], [2^{12}], [3,7,11,97,101], [by contradiction]. - quiz5. Answers: 16, 64, [A, B and C], [all except K
_{3,3}], (1). - quiz6. Answers: 2, 9, A and C, [2,3,4,5,6], [1,2,4].

Click here to return to Igor Pak Home Page.

To e-mail me, click
here and delete .zzz

Put *Math 61* in the Subject line.
Please address me as "Dear Professor Pak".

At the end of your email, you must include your full name and your
official **ucla.edu** email address (for privacy purposes).

*Last updated 10/20/2012*