Instructor: Tim Chumley
Office: Clapp 404b
Phone: 538-2299
e-mail: tchumley
Office Hours: Mondays 4:15-5:15, Tuesdays 2:30-5:00, Wednesdays 1:00-2:00 & 4:15-5:15, Thursdays 2:30-3:30

Textbook: Linear Algebra with Applications, 5th Edition by Otto Bretscher, ISBN: 9780321796974;
on library reserve under QA184.2 .B73 2013


Announcements

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:

  • Monday: 4:15-5:15
  • Tuesday: 3:30-5
  • Wednesday: 1-2
  • Thursday: 1:30-3

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 Gauss-Jordan 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.

Syllabus

Check the syllabus for all the important class policies (grades, attendance, etc.).

Homework

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 assignments. A selection of problems taken from the textbook or other sources will be assigned to be due Thursdays at 5pm in the folder outside my office.
    • These assignments are given so that you can practice writing mathematics and receive feedback on your progress.
    • If you would like feedback on a particular steps in a problem, then you can indicate this on your assignment.
    • Each problem will be given a score of 3, 2, or 1. A 1 will be given to indicate that to stay on track you should get help from your instructor or a TA.
    • Please refer to these guidelines when writing your homework.
  • Suggested problems. There will also be suggested problems assigned with each textbook section covered (see the Course Plan below). These are for practice and not to be turned in, but quiz and exam problems will typically be similar.
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

Quizzes

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)

Exams

There will be three exams. The dates for the two mid-terms 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 4-8 self-scheduled cumulative (pdf) solutions .

Course plan

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 In-class 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 row-echelon form
Gauss-Jordan elimination
Jan 30 - Feb 3 1.3, 2.1 1.3: 1-19 odd, 34, 47, 52, 53, 55, 58, 63, 65
2.1: 1-3, 5, 9, 16-23, 33, 34, 36, 47, 60
Rank (solutions and summary)
Feb 6 - Feb 10 2.2 2.2: 1-15 odd, 20, 21, 26, 27, 28, 41, 42
Feb 13 - Feb 17 2.3, 2.4 2.3: 3-11 odd, 17, 19, 29, 30, 49, 51
2.4: 1-13 odd, 28, 34, 35, 37, 40, 43, 69, 72, 73, 75
Matrix products
Matrix inverse
Feb 20 - Feb 24 3.1 3.1: 1-15 odd, 23, 25, 31, 35, 39, 44, 49
Feb 27 - Mar 3 3.2 3.2: 1-4, 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, 62-64, 82
Mar 20 - Mar 24 3.3, 3.4 3.4: 1, 5, 9, 13, 17, 21, 23, 29, 37-42 odd, 45, 53, 57 Summary of 3.1-3.3 ideas
Mar 27 - Mar 31 6.1, 6.2 6.1: 1-43 odd, 44, 46, 56, 57
6.2: 1-15 odd, 29, 30, 38, 39, 46
Determinants
More on determinants
Apr 3 - Apr 7 7.1, 7.2 7.1: 1-21 odd, 46-49, 59
7.2: 1-19 odd
Eigenstuff
Apr 10 - Apr 14 7.2, 7.3 7.3: 1-19 odd, 31, 41-47 odd, 53 Finding eigenvalues
Apr 17 - Apr 21 7.3, 7.4 7.4: 1-33 odd Two contrasting examples
Predator-prey model
Apr 24 - Apr 28 5.1, 5.2 5.1: 1-15 odd, 22-28
5.2:

Getting help

Here's a few ways to get help:

  • Office hours (listed at the top of this page). These are times I hold on my schedule to be available for students. I like to use these times as open drop in sessions where there may be multiple students getting help simultaneously, but it's expected that you come with specific questions about notes, homework problems, or the text that you have thought about already. If you need to schedule a time to meet with me one-on-one, either to discuss something private or because you can't make my office hours, please send me an email with times that you are available to meet, and I will find a time that works for both of us.
  • Evening help desk. Student TA's staff a math-oriented help desk most evenings in Clapp. Here is the schedule as it stands:
    • Mondays, 6-8pm, in Clapp 407
    • Wednesdays, 7-9pm, in Clapp 420 with Ayla and Young
    • Thursdays, 7-9pm, in Clapp 420
    The Monday and Thursday night sessions will have TA's from other sections, but everyone is welcome to attend. You should feel free to ask the TA's for help on homework, as well as on any other topics from class.
  • Study groups. I strongly encourage you to form small groups and work together on problems. My advice though is to try problems by yourself before discussing them. We have several spaces on the fourth floor of Clapp where students can work together for extended periods of time.