Here are solutions to Friday's final. The median score on the final was 35 out of 65. You can see your score on Catalyst. I'll be away for the next week, and when I come back I have jury duty, so I'm not completely sure when I'll be available to give your quizzes back, but I'll tell you as soon as I know.
Here are solutions to project 6. Sorry to take so long with them.
Project 6 is due on Wednesday, August 10nd. Also, here are some solutions to last week's problems, including to the optional problems.
Here is project 5, which is due on Wednesday, August 3rd. It includes two optional problems, one of which is a review problem. You shouldn't hand these in.
In your feedback, a lot of you liked working with your groups, and a lot of you mentioned having trouble getting together and also having trouble with freeloaders. Here's how the projects will work from now on: you can still work together with anyone (and are encouraged to do so!), but you must write up your solution either on your own or with a single partner. Your partner can be anyone you'd like, and you should write both of your names on your solution.
To sum up, work together with anyone you'd like, but write up your solution alone or with a partner.
Here are solutions to today's midterm. I'm grading them right now, and I plan to have them back to you in class on Monday.
Two other 308 instructors and I are having a review session tomorrow from 3:30-5:30 in Smith 304. We'll give you some old exam problems to work on, roam around the room answering questions, and then we'll present some solutions at the end.
Do check out the exam archive. Doing old midterms is probably the best way to study. Some of the questions are about things we haven't covered yet, so don't worry about them.
Here are solutions to the last group assignment. Also, here's that worksheet of conceptual review questions we did today.
I've posted solutions to the first online quiz from two weeks ago, in case you want them for your midterm studying. The questions people had the most trouble with were the ones about figuring out the number of possible solutions to various systems of linear equations. Now that you know more about linear independence and nullspaces, you might have a new perspective on these problems, so you might want to have a look at them again even if you got them the first time.
This week's group assignment is now available. Please have a different group member write it up this week. Good luck with it, and as usual, don't hesitate to ask if you're having trouble with it. You can also find homework #2 on Webassign.
Here's a solution to the first group assignment. My answers are wordier than yours need to be, but I hope they give you the basic idea of what sort of solutions I'm looking for.
Here's a copy of the group assignment that's due on Wednesday. As I've said, it's supposed to be hard, so let me know if you're stuck and want a hint.
The first homework assignment is now available on Webassign. Here are some instructions on how this works. Please let me know if Webassign does anything weird, or if you have any problems using it.
Hello everyone and welcome to Math 308F, Matrix Algebra. We'll be covering the basics of matrices and linear algebra. Linear algebra is a foundational subject that will come up again and again in further study in math and science. This will probably be the most conceptually difficult math class you've taken so far. It's also likely to be the most modern; nobody was really thinking about linear algebra until the 19th century, which makes it about 200 years younger than calculus. I like the subject, and I find this class one of the most fun to teach.
Please feel free to email me at toby@math.washington.edu if you have any questions.