Math 307E - Introduction to Differential Equations, Winter 2008

Instructor

Andrey Novoseltsev
Office: Padelford C-331
E-mail: novoselt at math dot washington dot edu
Day/Time/Room: MWF/12:30-1:20/LOEW 101
Office hours: Monday 11:30-12:20, Friday 2:40-3:30, or by appointment.
Potential appointment time: Monday 2:30, Tuesday/Thursday 9:00, Friday 3:30.

Final Exam

Minimum: 18 --- Average: 65 --- Median: 66 --- Maximum: 95 (I would get 97 with my original solution ;-)
Final Exam and its solution (mistakes in #5, #7, and #10 are corrected with red color).
If you want to pick up your final, contact me in the beginning of the spring quarter.

Grades in the class for the whole course:
Minimum: 1.5 --- Average: 3.0 --- Median: 3.1 --- Maximum: 4.0

NO GRADES WILL BE E-MAILED!

Midterm II

Minimum: 7 --- Average: 29 --- Median: 30 --- Maximum: 47
Midterm and its solution.

Midterm I

Minimum: 17 --- Average and Median: 34 --- Maximum: 45
Midterm and its solution.

Class discussion board

https://catalysttools.washington.edu/gopost/board/novoselt/4482/

Textbook

Elementary Differential Equations and Boundary Value Problems, 8th Edition, William Boyce and Richard DiPrima.

Tentative Schedule

Monday	Wednesday	Friday
01/07: Chapter 1	01/09: Section 2.1	01/11: Section 2.2
01/14: Section 2.3	01/16: Section 2.3	01/18: Section 2.4
01/21: Martin Luther King Day	01/23: Section 2.5	01/25: Section 2.7
01/28: Section 3.1	01/30: Section 3.2	02/01: Section 3.3
02/04: Review	02/06: Midterm I (2.1-5,7; 3.1)	02/08: Section 3.4
02/11: Section 3.5	02/13: Section 3.5	02/15: Section 3.6
02/18: Presidents Day	02/20: Section 3.7	02/22: Section 3.8
02/25: Section 3.9	02/27: Review	02/29: Midterm II (3.2-9)
03/03: Section 6.1	03/05: Section 6.2	03/07: Section 6.2
03/10: Section 6.3	03/12: Section 6.4	03/14: Review

Grading

Homework	10%
Midterm I	25%
Midterm II	25%
Final	40%

Homework

There will be seven homework assignments to turn in. They must be submitted by the beginning of the class. Late homework will not be accepted. In the end of the quarter the lowest homework grade will be dropped. If you miss a class or forget to bring or submit your homework, this will be your dropped grade. The due date will usually be Monday. I will announce assignments in the class and post them on this web page. You are responsible for completing all the assigned problems, and regularly doing homework is the best preparation for exams. However, only some randomly selected problems from each week's assignment will be graded.
Please, follow the following rules:

staple your homework;
make sure to write your name on it;
show all your work - if it is impossible to understand how you have got the answer, you may get zero credit (as a general rule, you need to solve all equations by hand, but it is OK to provide printouts of computer generated graphs).

Date Due	Problems
01/09	Read Chapter 1
01/14	1.1: 7,10,17,20 1.2: 2,11 2.1: 7,8,14,19,31 2.2: 6,7,12,17
01/23 (Wednesday!)	2.3: 3,5,8,12,14 2.3: 24 2.4: 3,4,10,21 2.5: 3,4,7,10,12
01/28	2.5: 15,16,20 2.7: 3,4,15
02/04	3.1: 2,5,10,11,20 3.2: 3,6,11,14,26 3.3: 2,5,10,17,21
02/15 (Friday!)	3.4: 6,7,21,38,39 3.5: 2,14,15,19,23,27 3.6: 1,2,13
02/25	3.6: 3,9,15,17,18 3.7: 2,5,11,15 3.8: 3,6,11,17
03/10	3.9: 5,6,7,8 6.1: 3,4,6,7,13,18 6.2: 3,8,12,21,25

Exams

There will be two midterms given during the usual class time (and in the same room). The final will be in the same room on Thursday, March 20, 8:30-10:20.

On all tests you are allowed to use one page of notes in your own handwriting (standard letter size, both sides). You are allowed to use a basic scientific calculator. Calculators capable of graphing, executing programs, and/or performing symbolic computations are not allowed.

You might want to try the following practice tests (provided with solutions).
Midterm I: variant 1, variant 2; Midterm II: variant 1, variant 2; Final: variant 1, variant 2.

No make-up exams (except for the final) will be given. Only under unavoidable emergencies (e.g. illness, death in family), which must be documented, will you be allowed to miss a midterm without penalty. Normally, such an absence from the final exam (provided the make-up cannot be taken) will result in a grade of Incomplete, assuming you are doing passing work at the time. In certain other situations (e.g., athletic meets, religious observances), it may be possible to take an exam early. This must, however, be set up at least 10 days in advance.

Photo ID is required for the midterm and final exams.

The grade of I (incomplete) will be given only under the conditions in the University of Washington General Catalog (under "Grading Systems").

Useful links

SAGE: open source free mathematics software. You can install your own copy or try it on-line!
Here is a SAGE worksheet that allows you to graph direction fields. You can also take a look at its printout.
SAGE TA Robert Miller is available on Tuesdays 1-4pm in Sieg 312, if you need any help or advice in using SAGE.

You may wish to consider taking the following class Spring Quarter - it should be fun!
Math 480A: Sage - Open Source Mathematical Software

A Java applet to plot direction fields for first order equations. You can download this applet to your own computer and run it locally (if you have Java), so you don't need to be connected to the internet.
Challenge of the week Have fun and win prizes!