Math 285. Introduction to Differential Equations
Section X1
Fall 2008

Section X1 meets: MWF 12:00-12:50 PM in 245 Altgeld Hall .

Textbook
Edwards and Penney, Differential Equations and Boundary Value Problems; Computing and Modelling, Custom Edition for the University of Illinois at Urbana-Champaign, Pearson Custom Publishing, 2008.
Note: This custom edition is taken from Edwards and Penney, Differential Equations with Boundary Value Problems: Computing and Modelling, Fourth Edition. It is identical to the fourth edition except that Chapters 5, 6, 7, and 8 have been removed. If students would prefer to use the full fourth edition, this should not be a problem.

Lecture Coverage
We will cover sections 1-6 from Chapter 1, sections 1 and 3 from Chapter 2, sections 1-6 and 8 from Chapter 3, sections 1-7 from Chapter 9, and sections 1-3 from Chapter 10. The chronological order of coverage is the same as the order in which the sections appear in the textbook.

Homework
Homework will be assigned weekly. You should submit your homework in class. However, if you miss a class, but want to hand in your homework, you must put it in my mailbox by 1:00 PM on the due date. You can drop your two lowest homework scores.

Assignments
HW1: section 1.1, problems 5, 17, 33, 46; section 1.2, problems 4, 13, 27, 28. Due Date: 09/05/08.
HW2: section 1.3, problems 13, 14, 27. Due Date: 09/12/07.
HW3: section 1.4, problems 22, 32, 34; section 1.5, problems 10, 16, 33. Due Date: 09/19/08.
HW4: section 1.6, problems 1, 3, 17, 28, 31; section 2.1, problems 5, 13, 18. Due Date: 09/26/08.
HW5: section 3.1, problems 24, 37, 39; section 3.2, problems 10, 15, 21 ; Due Date: 10/10/08.
HW6: section 3.3, problems 1, 5, 8, 20, 27; section 3.4, problems 4, 15, 17; Due Date: 10/17/08.
HW7: section 3.5, problems 1, 2, 3, 4, 26, 27, 28, 32; section 3.6, problems 2, 12, 22; Due Date: 10/24/08.
HW8: section 3.8, problems 1, 5, 7, 12; section 9.1, problems 10, 11. Due Date: 11/10/08.
HW9: section 9.2, problems 3, 14, 19; section 9.3, problems 2, 8, 13, 15. Due Date: 11/14/08.
HW10: section 9.4, problems 3, 8, 13; section 9.5, problems 2, 4, 8, 11; section 9.6, problems 2, 5, 8. Due Date: 12/08/08.

Make-Up Policy
Make-up exams will be given ONLY if you are excused for a university related activity (e.g. university sporting event, marching band trip, a required field trip in a course), or your absence is approved by the Emergency Dean (in case of an illness, personal, or family emergency).

Grading Policy
Your grade will be based on homework, three hour exams and the final exam. Your work should be readable and organized. All work must be shown-a bare answer is not enough.

Homework Hour Exams Final Exam

20% 45% (15% each) 35%

Exams
There will be 3 hour exams and a final exam.
Exam 1: Wednesday, September 24, 12:00-12:50 PM, room 245 Altgeld Hall.
Exam 2: Wednesday, October 22, 12:00-12:50 PM, room 245 Altgeld Hall.
Exam 3: Wednesday, November 19, 12:00-12:50 PM, room 245 Altgeld Hall.
Final Exam : 1:30-4:30 PM, Wednesday, December 17, room 245 Altgeld Hall.

Scores
to check your scores click here and then select 'Score reports'.

Other Announcements
Review for Exam 1: Tuesday, September 23, 6:00-7:30, 259 English Building. The exam will cover sections 1.1-1.6, 2.1 and 2.3. In order to prepare for the test, you might want to work on 2 problems from section 2.3: problems 2, 9.
Tutoring
Review for Exam 2: Tuesday, October 21, 6:00-7:30 PM, Room 161 Noyes Lab.
Review for Exam 3: Tuesday, November 18, 6:00-7:30 PM, Room 140 Burrill Hall. Extra practice problems: section 9.4, problems 3, 8, 13.