Instructor: Tim Chumley
Office: Clapp 404b
Phone: 5382299
email: tchumley
Office Hours: Mondays 4:155:15, Tuesdays 2:305:00, Wednesdays 1:002:00 & 4:155:15, Thursdays 2:303:30
Textbook: Linear Algebra with Applications, 5th Edition by Otto Bretscher, ISBN: 9780321796974;
on library reserve under QA184.2 .B73 2013
Announcements will be posted here throughout the semester.
May 14: Some of the final exam notes sheets that stood out are now posted. Here's a great one:
Apr 27: There is no quiz this week! My office hours for reading week are as follows:
Apr 26: The final exam schedule is posted here.
Apr 25: There was a computer glitch on Monday which made Problem Set 10 disappear temporarily. It's back now, but I've pushed the due date back to Friday in case this caused any issues in your study plans.
Feb 16: Because of last week's snow day, I've shifted our exam schedule a little. Our first exam will now be March 2 in class.
Feb 7: Here is a link to a useful GaussJordan elimination calculator. In case you're still a little unsure of how it works, it goes through each step of the algorithm.
Jan 31: Here is a link to the plane and perpendicular vector visualization tool that I showed in class today.
Check the syllabus for all the important class policies (grades, attendance, etc.).
There will be weekly homework assignments throughout the semester to be turned in, as well as suggested problems to be considered as additional practice.
Written Assignment  Due 

Problem set 0  Jan 27 
Problem set 1  Feb 2 
Problem set 2  Feb 10 
Problem set 3  Feb 17 
Problem set 4  Feb 23 
Problem set 5  Mar 9 
Problem set 6  Mar 23 
Problem set 7  Mar 30 
Problem set 8  Apr 6 
Problem set 9  Apr 20 
Problem set 10  Apr 28 
There will be weekly 15 minute quizzes on Fridays except the first week, Spring break week, reading week, and on weeks when there is an exam. Quizzes will be one to two problems and cover material discussed through the previous Tuesday's lecture. The precise sections covered will be listed below and problems will be similar to suggested problems.
Quiz  Date  Material  Solutions 

Quiz 1  Feb 3  1.1, 1.2  (pdf) 
Quiz 2  Feb 17  2.1  2.3  (pdf) 
Quiz 3  Feb 24  2.4  (pdf) 
Quiz 4  Mar 9  3.1, 3.2  (pdf) 
Quiz 5  Mar 23  3.3  (pdf) 
Quiz 6  Mar 30  3.4  (pdf) 
Quiz 7  Apr 7  6.1, 6.2  (pdf) 
Quiz 8  Apr 21  7.1  7.3  (pdf) 
There will be three exams. The dates for the two midterms are subject to change slightly:
Exam  Date  Time and Location  Material  Study material  Solutions 

Exam 1  Mar 2  in class  Chapters 1, 2  (pdf) solutions  (pdf) 
Exam 2  Apr 13  in class  Chapters 3, 6  (pdf) solutions  (pdf) 
Final  May 48  selfscheduled  cumulative  (pdf) solutions  . 
Below is a rough outline of the sections to be covered week by week through the semester, including suggested textbook problems. Some of this is subject to change, so please check regularly.
Week  Sections  Suggested problems  Inclass activities 

Jan 23  Jan 27  1.1, 1.2  1.1: 5, 7, 13, 15, 18, 19, 24, 30, 33, 34, 41, 49 1.2: 5, 7, 9, 18, 21, 27, 36, 37, 43 
Geometry of solution sets Reduced rowechelon form GaussJordan elimination 
Jan 30  Feb 3  1.3, 2.1  1.3: 119 odd, 34, 47, 52, 53, 55, 58, 63, 65 2.1: 13, 5, 9, 1623, 33, 34, 36, 47, 60 
Rank (solutions and summary) 
Feb 6  Feb 10  2.2  2.2: 115 odd, 20, 21, 26, 27, 28, 41, 42 

Feb 13  Feb 17  2.3, 2.4  2.3: 311 odd, 17, 19, 29, 30, 49, 51 2.4: 113 odd, 28, 34, 35, 37, 40, 43, 69, 72, 73, 75 
Matrix products Matrix inverse 
Feb 20  Feb 24  3.1  3.1: 115 odd, 23, 25, 31, 35, 39, 44, 49  
Feb 27  Mar 3  3.2  3.2: 14, 11, 15, 19, 27, 32, 36, 37, 39, 42, 45  
Mar 6  Mar 10  3.2, 3.3  3.3: 3, 7, 9, 15, 27, 28, 38, 6264, 82  
Mar 20  Mar 24  3.3, 3.4  3.4: 1, 5, 9, 13, 17, 21, 23, 29, 3742 odd, 45, 53, 57  Summary of 3.13.3 ideas 
Mar 27  Mar 31  6.1, 6.2  6.1: 143 odd, 44, 46, 56, 57 6.2: 115 odd, 29, 30, 38, 39, 46 
Determinants More on determinants 
Apr 3  Apr 7  7.1, 7.2  7.1: 121 odd, 4649, 59 7.2: 119 odd 
Eigenstuff 
Apr 10  Apr 14  7.2, 7.3  7.3: 119 odd, 31, 4147 odd, 53  Finding eigenvalues 
Apr 17  Apr 21  7.3, 7.4  7.4: 133 odd  Two contrasting examples Predatorprey model 
Apr 24  Apr 28  5.1, 5.2  5.1: 115 odd, 2228 5.2: 
Here's a few ways to get help: