Office hours Tuesdays and Fridays 10:00-11:00 in Art 336.
If you are struggling with the supplemental problem, this should get you started: If you are reflecting vectors across a plane and you want to find the plane, you want to look at all the vectors that do not move. In other words, you want to solve the equation Ax=x.
You still have a little more work to do, though, because this system of equations has variables on both sides of the equal sign.
I will hold office hours from 3:00 to 4:00 on Tuesday, February 7, instead of at the usual time.
Over the next few classes, we will be discussing some important examples of subspaces of Rn.
To help you out, I've prepared some notes: Null space, range, row space, and column space.
Your first exam has been graded. Grades are posted on Catalyst. This histogram will show you how you compare to the class. It is too soon to say how exam grades correspond to class grades, but I estimate a 28 on this exam corresponds to a 2.0.
Exams will be handed back on Friday. If you would like me to take a second look at how I graded a specific problem, please write a short explanation of what you think I overlooked and hand it to me with your exam.
We will cover section 3.1 and 3.2 today, and 3.3 on Friday and Monday. We are still a little behind from the snow days, but not enough to change any homework due dates.
Homework 4 will be due next Wednesday as originally planned. Unless I announce otherwise, the rest of the homeworks will also be due on Wednesdays. The second exam will definitely be given on Friday, February 24, as originally planned.
Answers to the first exam are posted here
CLUE will be holding a Math 308 midterm exam review on Thursday, January 26, from 8-10pm in MGH 234.
The first exam will be moved to Monday, January 30. See below for some information and resources.
We will cover 1.7 on Monday and Wednesday and 1.9 on Wednesday and Friday. A revised homework 3 will be due on Friday. The homework includes a Catalyst problem. You will not turn in homework from section 1.9, but there are some problems listed on the homework page that you should do before the exam.
For your first exam, you are allowed one page of notes, but no calculator. There are some exams from previous quarters posted on the exams page. The exam will cover all sections from Chapter 1 except for 1.4 and 1.8.
The written part of Homework 2 will be due on Friday this week Monday, January 23.
The Catalyst problem will be due on Wednesday as planned, even if the University of Washington cancels classes tomorrow.
As part of homework 2, which is due next Wednesday, you will have your first Catalyst problem. To submit the problem, you must follow the link on the homework page.
The problem must be submitted by class on Wednesday. Type your solution in the form that is given. The form will not accept any special formatting, so do the best you can to clearly communicate your ideas. Please do not submit your solution as an image or a link.
Don't forget that the first homework is due Wednesday in class. Please write up your solutions neatly and staple your pages together.
If you must miss class on a day that homework is due, you can bring the assignment to my office hours on Tuesday or put it in my mailbox, which is located on the first floor of the C-wing of Padelford Hall.
The page www.kaleidoscope.net/greg/math/rref has a great row reduction calculator. You might find this helpful while you are learning to row reduce.
On the first day of class, we covered sections 1.1 and 1.2. Read sections 1.1-1.3 before class on Friday.
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Welcome to my Math 308 class. Here is the syllabus that will be distributed the first day of class. Once you finish reading it, you could get started on the first homework assignment.
If you need to contact me, now or any time this quarter, send an email to grigg@uw.edu. Please include the number 308 in the subject line of the email.
