Carleton college seal

Math 232: Linear Algebra

Winter 2015

Carleton college seal


Prof. Rafe Jones

Email: rfjones at carleton dot edu
Phone: 507-222-4450
Office: CMC 226
Office Hours:
Monday
Tuesday
Wednesday
Friday
10:00-11:00, 2:00-3:00
10:00-11:00, 1:30-2:30
3:00-4:00
11:00-12:00
Or just stop by and see if I'm around (it helps to make appointment, though it's not strictly necessary). I have a schedule posted on my office door that gives a general idea of my whereabouts.

Class meeting times:
MW 12:30-1:40, F 1:10-2:10 in CMC 301

Textbook: Linear Algebra with applications, fifth edition, by Otto Bretscher

Carleton college policy on Academic Integrity

Math skills center: a welcoming place where you can drop in any time to get help with math questions; it also functions as a place to study, to do homework, and to meet for one-on-one tutoring. Its hours are Monday-Friday: 8:30am-11pm, Saturday: 2-5pm, and Sunday: 2-5pm and 7-11pm. See the MSC website for more information. Or just stop by!

Grading Rubric for Homework and Exams


Note sheet art contest winners:

This one wins for best linear algebra mascot:

This one wins the prize for tiniest writing

This one gets an award for the largest number of animals:

This one wins the award for funnest-looking math event:

This one has the coolest image-kernel diagram:


Final Exam

The final will be this Saturday from 8:30-11:00 am in the usual classroom. There will be a review session on Friday, time TBA.

The final will be approximately twice as long as the midterms, though you'll have 2.5 hours in which to do it. It will cover everything we've done in the class. The material since the second midterm (the parts of sections 6.2, 7.1, 7.2, 7.3, and 7.4 that we covered in class) will account for roughly one-third of the exam.

Note Sheet: You will be allowed to have one side of one 8.5 by 11 sheet of notes for the exam. All sheets must be handwritten. You can write anything you like on the sheet -- formulas, examples, mnemonics, your personal linear algebra mantra, etc. No magnifying devices allowed. For those who would like to decorate their sheets or otherwise artistically arrange them: I will post my favorite ones on the course website after the exam.

Review tips:

Review Problems:


Projects

Project I

Project II
Paper that goes with Project II


Second Midterm

The second midterm is Monday, March 2, in class. It will cover Sections 3.2, 3.3, 4.1, 4.2, 4.3, and basic properties of determinants. The exam will consist of a few computation problems, 1-2 proof-based problems, and a few true-false questions with explanation (some of these are likely to be identical to some of the review problems below). To review for the exam, try to simulate the exam environment: take the practice exam below without looking at your notes, and using only 70 minutes. Try to do the true/false questions also without looking at your notes, and be sure to write out a sentence or two explaining your answer for each. If you recognize areas where you aren't sure of yourself, then go back and consult your notes, book, and old homework in order to solidify your knowledge.

Some review problems:

Chapter 3 Exercises (pp. 163-165) #1-7, 10, 16, 17, 19, 29, 38, 50.
Chapter 4 Exercises (pp. 199-201) #5, 6, 8-11, 14, 15, 17, 18, 19, 24, 27, 28, 30, 31, 34, 37, 43-45, 51, 53, 55, 56, 64.
Section 6.1, 3, 5, 7, 11, 13, 31, 33, 39.

For solutions to all the true-false questions at the end of each chapter, click here.

For a practice midterm, click here.

For solutions to the practice midterm, click here.


First Midterm

The first midterm is Wednesday, February 4, in class. It will cover Chapters 1 and 2, and Sections 3.1 and 3.2. You should know all the definitions and techniques necessary to do the homework problems. The exam will consist of 5-7 problems, each of which is similar in format to one of the homework exercises or one of the review problems below. You'll have the full 70 minutes of class on Wednesday to complete the exam. Good ways to review for the exam include working the review problems below, using the practice exam to simulate an exam environment, reworking any homework problems that you lost points on or feel you didn't fully understand, and reviewing your class notes.

Below are quite a lot of review problems. They are True/False, but they're not necessarily easy! For each problem, you should write down some justification for your answer; for some of them just a sentence will do, while for others you'll need to do a computation or make an argument. For instance for #4 from Chapter 1, if you think the answer is false, then you should jot down a system of four equations in three unknowns that is consistent. You should be able to move quickly through the first ones from each chapter, but some of the later ones will require significant thought.

Chapter 1 Exercises (pp. 38-40) #1-27, 31-35, 37, 39, 41-43.
Chapter 2 Exercises (pp. 107-109) #1-11, 15, 18, 19, 21, 23, 27, 30, 34, 35, 36, 40, 43, 47, 53, 49, 50, 53, 57.
Chapter 3 Exercises (pp. 163-165) #6, 7, 9, 13, 14, 18, 20, 22, 25, 27, 29, 37, 41.

For a practice midterm, click here.
For solutions to all the true-false questions at the end of each chapter, click here.

For solutions to the practice midterm, click here.




Welcome to the class!



EXAMS

Midterm Exam 1: Wednesday, February 4, in class

Midterm Exam 2: Monday, March 2, in class

Final Exam: Saturday, March 14, 8:30-11:00am



the meaning of life