Math 2270-2,  Linear Algebra, Spring 2006  

Instructor: Bo-Hae Im                                  E-mail : im at math dot utah dot edu
Office     : LCB 116                                     Phone: (801) 585-9112
Class Webpage : http://www.math.utah.edu/~im/2270-2/2270.html
Office Hours : Tue. 3:30 - 4:30pm, Thr. 3:30 - 4:00 or by appointment
Class meets on T, H   4:35-6:15 pm  at JTB 130
                                                                                                                                                                                                            
Class announcement  The announcement said in each class (including  the due dates of HWs, and quiz/exam announcement) will show up here.  Check this page regularly.

Solution key to 'Turned-In' HW problems: HW 1, HW 2, HW 3, HW 4, HW 5, HW 6, HW 7, HW 8, HW 9, HW 10, HW 11
Solution key to Exams : Exam 1,  Exam 2,  Exam 3,   Final Exam

Practice exams: Practice Exam 1,  Practice Exam 2, Practice Exam 3, Practice Final

Click here to check your scores with the last 3 digits of
your SID#.

Week
Date
 Section  
HW / HW Due
(Underlined Bold-face problems are to be handed in, others are recommended but they will help you doing Bold-face problems.)
Note/hand-outs

11
Mar.21
6.1
Solution key to Ex2 and scores have been updated!

Mar.23
6.2
HW set 8  (click this to print out only the list of problems): DUE on Thursday 03/30.
6.1: 9,10,17,18, 35,36,39,40,42,43,44,55,56 (strongly recommend odd numbered- problems before you try even numbered-turned-in-problems)
6.2: 3,4,7,8,9,10,11,12,13,14,15,16,17, 23, 20, 37, 38,40,46


12
Mar.28
6.3
Start HW set 9 problems (see below)
Hand out: True of False questions on CH 6.
Mar.30
7.1 and 7.2
HW set 9 (click this to print out only the list of problems): DUE on Thursday 04/06.
6.3: 1,2,3,7, 23, 24, 25, 26,31, 30, 34, 35
7.1: 1,2,3,4,5,6,9.10,11,13,16,21,36
7.2: 3,4,7,8,9,10,14,15,16,32,35,38,42,45
HW 8 solution is posted above.


13
Apr.4
7.3
HW set 10 (click this to print out only the list of problems): DUE on Thursday 04/13
7.3: 3,4,7,8,13,14,21,26,27,35,28,36, (section 7.4 has been removed from the list)

Apr.6

cancelled by the school due to snow.
Hand out : True of False questions on CH7.
14
Apr.11
 review for the exam3
Practice exam 3 is posted above.

Apr.13
EXAM 3
Exam 3 will cover  6.1,6.2,6.3,7.1,7.2,7.3.


15
Apr.18
7.4, 8.1
Solution key to HW 10 and Exam 3 and score are updated.
HW set 11 is due on Apr. 25 (Tuesday).


Apr.20
8.3
HW set 11: DUE on TUESDAY, 04/25
7.4:
11,12,15,16,27,26,31,32,39,40,49,50
8.1: 5,6,11,14, 10,25,24,31(justify your answer)
8.3: 4,5, 6,11,12,14

 16
Apr.25
Review for the final.
Practice Final problem set is posted above.
HW 11 solution key is updated above.

17
May 2
Final Exam (6-8 pm)








1

Jan.10
1.1, 1.2

Syllabus
Jan.12
1.2, 1.3
HW SET 1 (click this to print out only the list of problems): DUE on Thursday 01/19.
1.1:   1, 3, 7, 6, 8, 11, 15, 17, 25, 26, 29, 30;
1.2:   1, 5, 6, 13, 18, 20, 21, 22, 25, 29, 30, 32, 34, 35, 36;
1.3:   1, 5, 7, 9, 13, 14, 17, 18, 20, 24, 27, 30, 31, 33, 34.
You can try odd numbered problems to get some hints on even numbered problems.
Each problem is worth 3 points. If you don't show your work, 1 or 2 points for each will be taken off.

Hand out : True or False questions on Chapter 1.

2
Jan.17
1.3(conti), 2.1, T/F problems on CH 1.
HW Set 1 is due on Jan. 19.

Jan.19
2.2, 2.3



3

Jan.24
2.4
HW set 1 solution is posted in the above. Check it out.
HW SET 2 (click this to print out only the list of problems): DUE on Thursday 01/26.
2.1:  3, 2, 4, 5, 6, 8, 11, 10, 13, 16, 17, 19, 20, 24, 32;
2.2:  2, 5, 6, 9, 8, 10, 11,13, 17, 26, 27, 37, 43, 49;
2.3:  1, 2, 4, 6, 16, 30, 33, 34, 38 ;
2.4: 2, 4, 13, 16,17,18,19, 20,21,22,23,24,25, 28, 43

Hand-out: True or False problems on Chapter 2.
Jan.26
3.1, 3.2
HW set 2 solution is posted in the above. Check it out.

The HWscore has been updated in the above. Please check with your last 3 digits of student ID #.
If there is a mistake, please biring your graded HW and talk to me.

4
Jan.31
3.2(Continued), 3.3
HW SET 3 (click this to print out only the list of problems): DUE on Thursday 02/02.
3.1: 3, 4, 7, 8, 13, 14, 15, 16, 23, 27, 28, 32, 40, 50
3.2: 1,2,3,6,8,11,12,13,15,16,18,23,25,26,29,32,34,41,43,45,48

Note that 3.3 is removed from the list of HW set 3.

Feb.2
3.3(continued), 3.4



5
Feb.7
 discuss some practice problems and HW problems
HW set 4 (click this to print out only the list of problems): DUE on Thursday 02/09
3.3: 5,8,9,10,18,23,24,27,29
,28,30,31,32,35,36,42

3.4: 3,4,9,10,12,16,25,26,43,44,45,46,61,62
HW set 3 solution is posted in the above. Check it out. And the scores are updated.
Practice Exam 1 has been updated above. We will discuss some of them on Tuesday if you have questions.
Hand-out: True/False problems in CH 3.
Feb.9
Exam 1
Exam 1 will cover Chapter 1, 2 and 3.


6
Feb.14
4.1
HW 4 solution and EX 1 solution/ Scores have been updated in the above. Please check and if there is any problem, let me know.

Feb.16
4.2, T-F problems



7

Feb.21
4.3
HW set 5 (click this to print out only the list of problems): DUE on Thursday 02/24
4.1: all 1- 10 (2,4,6,10), 20,21,22,24, 27, 39, 41, 53, 54
4.2: 2,3,5,6,10,19,25,24,42,43,44,52,53,60,74,76
4.3: 1,5,7,6,21,20,24,41,42,46,49,48, 61,60

Note that #20 on 4.2 has been removed!
Click this copy for the lecture notes on Feb.21.

Feb.23
5.1
HW set 6 (click this to print out only the list of problems): DUE on Thursday 03/02
5.1: 3, 2, 5, 6, 10, 12, 17, 27, 28, 29, 31,
5.2:  
6,7,13,14,19,21,32,33,41(all)
HW set 5 solution has been posted above.
Hand-out: True/False problems in CH 4.

8
Feb.28
5.2, 5.3
HW set 7 DUE on Thursday 03/09
5.3:  3,4,5 - 26 (10,14,20,24),27,31,38,40,44,45,52,53
5.4:  1,5,7,17,20,21,31,30


Mar.2
5.3(continued), 5.4
HW set 6 solution has been posted above.


9

Mar.7
Review for the exam 2 , T/F problems on chapter 4 and 5
HW set 6 solution has been posted above.
Practice Exam 2 has been posted in the above. The CIS server is down so emailing is not available at this moment.

Exam 2 will cover Chapter 4 and Chapter 5 (except section  5.5).

Mar.9
Exam 2
HW set 7 solution is posted.

10

Spring Break
See the top of this table for the upcoming announcements since March 21.

Textbook : Linear Algebra with applications, 3rd Ed., by Otto Bretscher

Prerequisites: Math 1210-1220 or Math 1250-1260. Previous exposure to vectors or a multivariable Calculus course might be helpful.

Course Description and a brief syllabus:  MATH 2270 is devoted to linear mathematics. Our topics are linear equations with matrices, linear transformations in terms of matrices, subspaces of Rn and their dimensions, linear spaces, orthogonality of vectors, determinants of matrices, eigenvalues and eigenvectors of linear transformations, quadratic forms, and linear differential equations. More detailed syllabus will be updated in the section 'Class Announcement' in this webpage below. Please check this page regularly.

Course Policies: 

Exam dates are Ex1Feb.9, Ex2: Mar.9, Ex3: April 13  (these are tentative according to our following-up pace), Final Ex: Tuesday, May 2, 6:00-8:00 pm (scheduled, so please make sure there is no conflict with your schedule). There will be NO MAKE-UPS to be fair to everyone.  
Three in-class Exams (each 15 %, total 45%)
Final exam (30 %)
          HW (25%)      
Free tutoring center:  The mathematics Tutoring Center offers free, drop-in tutoring to students enrolled the math classes. For more information, click here.

Important Tips:
Please come to every class.  Practice lots of homework problems. Form study groups. Come to the office hours. Study daily, not just before exams. Maintain and refer to class notes. Ask questions! Participate in class! I am looking forward to meeting each of you. I urge you to come to see me if you ever need help or if you feel that you are falling behind. Please  feel free to also email me. I hope you find this course both productive and enjoyable. GOOD LUCK!!!

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