Examdates and some miscellaneous items may also appear below.
If one day's assignment seems lighter than average, it's a good idea to read ahead and start doing the next assignment, which may be longer than average.
Unless otherwise indicated, problems are from our textbook (Nagle, Saff, & Snider, 4th edition). It is intentional that some of the problems assigned do not have answers in the back of the book or solutions in a manual. An important part of learning mathematics is learning how to figure out by yourself whether your answers are correct.
Read the corresponding section of the book before working the problems. Don't just read the examples, and don't just try the homework problems and refer to the text only if you get stuck.
Date due  Section # / problem #'s 

F 8/25/06  Read the syllabus and the web handouts "Taking notes in a college math class" and "What is a solution?", obtainable from the Web. Read Section 1.1 and do problems 1.1/ 116. We did not get to "order" or "linear vs. nonlinear" in class on Wednesday, but you should have no trouble doing these problems based on pp. 45 of the book, and I will review this material on Friday. Also, do nonbook problem #1. Note: if you have a problem viewing any of my PDF files, check your version of Adobe Acrobat at http://www.adobe.com/products/acrobat/ . You may need to update (all you need is a recent version of the free Adobe Reader). 
M 8/28/06  1.2/ 1, 35, 14, 15, 19. 
W 8/30/06 

F 9/1/06  I'm about one lecture behind where I'd hoped to be. I would suggest rereading Section 2.2 and trying start on the assignment due Wednesday 9/6/06. You may be able to do them based just on your reading, and you will then have a smaller assignment over the weekend. 
Every Friday  Homework discussion: Starting 9/1/06, I will hold a weekly session on Friday, 9th period, in Little 125, for the purposes of answering homework questions for recently assigned homeworkproblems that were due that week, or, if a week was skipped, since the last homeworkdiscussion. I will continue holding this session only as long as at least 10 students show up; I will discontinue it the second time that fewer than 10 show up. (For the purposes of this twostrikesandyou'reout policy, today, 9/1/06, does not count, since I did not get a room and put out this announcement till today.) I stress again that I expect you to be doing all your homework by the duedates, and that these homework sessions are intended for recent homework problems, not to help you catch up the week before an exam. If I cancel the sessions because there's insufficient interest (i.e. fewer than 10 attendees) when an exam is not imminent, I will not reinstitute them the week before an exam. 
W 9/6/06 
2.2/ 8, 9, 11, 13, 17, 18, 23, 27abc, 2934. "Solve the equation" means "find the general solution of the equation" (i.e. find all solutions). For some of the problems in the "716" group, the method I presented in class is not sufficient to find all the solutions, so you may not be able to finish these problems completely yet. Problem 30 of this assignment illustrates the relevant issue, but on Wednesday we will see how to find systematically the solutions that are missed by separating variables (these correspond to "Case (ii)" of the analysis I started on Friday but did not complete). Save your work on this assignment so that in the next assignment, you can fill in any solutions you missed on this assignment. 
F 9/8/06 

M 9/11/06  2.3/7, 8, 1315, 1720, 23 (read Example 2 on p. 52 first), 24, 27a, 28. 
Special note about Friday's problemsession  For those of you who attended the problemsession on Friday 9/8/06: I incorrectly wrote a formula (part of the general solution to some DE) as 1/(Ce^{t}+1). What I should have written was 1/(Ce^{t}+1). 
W 9/13/06 

F 9/15/06 

Special note  Examdate change: first midterm is postponed until Wednesday, Sept. 20. This may result in other examdates being postponed. I'll update you when we get closer to the originallyestimated dates. 
M 9/18/06  
Special note  Here is what I told a 2003 Differential Equations class after they performed less well than they'd hoped on their first midterm. I'm hoping that this advance warning will help you to avoid the flaws in their study habits, exam prep, etc. 
If you had any unpleasant surprises on [this] exam, please reread the section on prerequisites on the class home page, and the sections on homework, workload, attendance, and miscellany on the syllabus. You may also want to reread the handout "Taking notes in a college math class". 

W 9/20/06  First midterm exam (assignment is to study for it). The relevant booksections for the exam are 1.11.2 and 2.12.4. However, bear in mind that I went into greater depth than the book on certain topics, and anything that I covered in class or was covered in the book or in homework is fair game for the exam. 
F 9/22/06  Read Sections 4.1 and 4.2. 
M 9/25/06  4.1/110. Typo correction: In #10a, 2nd line, the function written after "B" should be "sin", not "cos". 
W 9/27/06  
F 9/29/06  
M 10/2/06  Reread section 4.2 and do problems 4.2/110, 13, 14, 17, 18, 20, 21, 22, 26. 
Exam 1 is now graded! For the gradescale, click on your
section: 6th period (12:50 
1:40)
or
8th period (3:00 
3:50). The linked page "list of scores" has some graderelated
statistics.
 
W 10/4/06 

M 10/9/06  
W 10/11/05  
F 10/13/06  Read Section 4.4. If possible, get started on the next assignment, which is pretty long. I've broken it into pieces in the order in which you should attempt it; depending on how far I get Friday, I may spread it across more than one assignment. 
M 10/16/06  
Special note  Date for 2nd midterm: Friday, Oct. 20. Fair game for the exam is anything in sections 4.14.5, plus material covered in class since the last exam that's not in the book. 
W 10/18/06  
F 9/20/06  Second midterm exam (assignment is to study for it). 
M 10/23/06  No homework. 
W 10/25/06  
F 10/27/06  
Exam 2 is now graded. For the gradescale, click on your section: 6th period (12:50  1:40) or 8th period (3:00  3:50).  
M 10/30/06  4.6/118, 19 (first sentence only), 21, 25 
Special Notice 
Examdate change. The third midterm will not be given on the originallyplanned date of Nov. 8. It will be given either on Wed. Nov. 15 or Fri. Nov. 17. I will announce the exact date when I'm sure of it. In either case, my intention is to return the graded exams to you by Mon. Nov. 20, the last date to drop a class. 
W 11/1/06  
F 11/3/06  7.2/18, 10, 12 (note: "Use Definition 1" means "Use Definition 1", NOT the box on p. 358 or any other table of Laplace Transforms), 1320, 29ad,f,g,j. 
M 11/6/06  7.3/18,12,14,19,31 
W 11/8/06  
M 11/13/06  
Special note  Date for 3rd midterm: Friday, Nov. 17. 
W 11/15/06  7.6/118 
F 11/17/06  Third midterm exam (assignment is to study for it). Although I've already had you read through Example 6 in Section 7.6, the exam will not cover any material beyond Example 4. You will be tested on transforms and inversetransforms involving piecewisecontinuous functions that are discontinuous and/or "piecewisedefined", but you will not be required to solve any DE's where the righthand side is such a function (such as in Example 5 of Section 7.6). As usual, everything else is fair game: anything in Section 4.6, anything in Chapter 7 through Example 4 of Section 7.6, anything covered in homework, and anything covered in class. Every problem on the Laplacetransform sample exam is of fairgame type except for 5b. 
M 11/20/06  Read Section 7.8. We will cover Section 7.7 after Section 7.8. 
W 11/22/06  There will be class this day. The day before a holiday is not a holiday. 7.6/2128, 2931, 33, 3537, 39 
M 11/27/06  
W 11/29/06  
F 12/1/06  Note: This week my Friday morning officehour is cancelled so that I may attend a UF Board of Trustees meeting. However, I will hold our Friday 9thperiod problemdiscussion session (in Little 125, as usual). 
M 12/4/06  
W 12/6/06  
Material for final exam  The final will be cumulative, with a disproportionate emphasis on material covered since the last midterm (probably more than 25% but less than 50%). 
Review session and remaining office hours 
I will hold a questionandanswer review session (6th and 8thperiod sections combined) on Friday Dec. 8, starting at 12:50, in our usual classroom. I may be a few minutes late. I'm expecting the session to last an hour, but it could be longer or shorter depending on the questions asked. 
Please remember that I will not communicate any graderelated information by email; email that asks graderelated questions will not receive responses. Students wishing to know their finalexam scores and/or wanting to see their graded finals should see me in my office in January. 