Math 23
Winter 2011

Differential equations relate a function to some expression involving its derivatives or partial derivatives.  Any quantity that obeys rules involving its various rates of change can be modeled with these equations.  These kinds of equations therefore occur throughout the sciences, engineering, economics and medicine.

There is one section of Math 23 this winter taught by Professor Dorothy Wallace.  It meets at the 11 hour-- MWF 11:15-12:20 and x-hour Tu 12-12:50.  We will use the x-hour often, as indicated on the syllabus.  Wallace's office: Kemeny 204.  Office hours: Tu 1-2, W 4-5 except during department meetings, Th 9-10 and by appointment.

Required books: Notes on Diffy Qs, Lebl, course reader available at Wheelock Books.  Notes on Differential Equations, Terrell, free pdf file. Ele mentary Differential Equations and Boundary Value Problems by Boyce and DiPrima.  You can use any addition, cheaply available through Amazon. There's a Student companion site with reviews, quizzes, Matlab, etc, by chapter.  We will also make use of The B ig Green Ordinary Differential Equation Machine  to assist with numerical solutions.  Those who know Matlab are encouraged to use it. There will also be a few research papers to read and selections from Wikipedia as necessary.

Honor principle. Exams: no help given or received. Homework: no copying, however collaboration on approaches to problems is encouraged. Write-ups must be done individually. Term paper: discussion with others encouraged and paper to be written in pairs.  You and your partner must write it yourself with proper citations.  I encourage you to consult with a writing editor (the College provides these through its writing programs).

Attendance:  In class we will frequently look at problems or issues not in the text.  You are responsible for everything done in class as well as what is in the book.

Special needs: Let me know if you have any, by the first 2 weeks. Also stop by the Academic Skills Center in 301 Collis to register for support services.

Private tutoring: Tutor Clearinghouse may have private one-on-one tutors available for Math 23. The tutors are recruited on the basis that they have done well in the subject, and are trained by the Academic Skills Center. If a student receives financial aid, the College will pay for three hours of tutoring per week. If you would like to have a tutor, please go to 301 Collis and fill out an application asap.

Religious observance: Some students may wish to take part in religious observances that occur during this academic term. If you have a religious observance that conflicts with your participation in the course, please meet with me before the end of the second week of the term to discuss appropriate accommodations.

Grading scheme:

Homework: 20%
Midterm: 20%
Short paper: 20%
Final 40%