**Course Description:**
Full course for one semester. An introduction to the theory of ordinary
differential equations. Existence and uniqueness theorems, global behavior of
solutions, qualitative theory, numerical methods. Prerequisite: Mathematics
202. Lecture-conference. Offered in alternate years.

**Text:** *Differential equations and dynamical systems*, by Lawrence Perko.

**Office Hours:** Monday, 1:00–2:00pm, Wednesday, 1:00–2:00pm,
Thursday, 2:30–3:30pm,
or by appointment. To see times that may be available for an appointment, see
my schedule.

**Math Help Center and tutoring:**
Student tutors are available to help you on SMTWTh evenings from 7:00 to 9:00
in L389. Individual
tutoring is also available.

**Homework:**
There will generally one homework assignment each week, due at the beginning
of class on Friday. The assignments appear on our homepage, usually on the
preceding Sunday. Homework will be returned by Wednesday of each week. The
grade will have two components: This first is on the correctness of the
mathematics and is graded on the following scale:

5 - perfect 4 - minor mistakes 3 - major mistake, right idea 2 - wrong but contains a significant idea 1 - wrong but contains a relevant idea 0 - none of the above NG - not graded

**Grades:**
Your grade will be based on your performance on the homework,
midterm tests, and final exam, and on class participation.

**Academic honesty:**
You are welcome, even encouraged, to work together on homework. However,
after discussing a problem, you must write up your own solution independently.
Your written work should honestly represent your understanding of the
material. You should also **acknowledge your collaborators and tutors by
listing their names at the start of your solution**. Copying another's work
will be considered an honor policy violation.

**Technology in the classroom:** Dealing with email or browsing the
internet using a cellphone or computer during class is distracting for both the
instructor and fellow students and is, thus, prohibited. Legitimate uses of
technology such as for note-taking or following online lecture notes are fine.

- Late homework assigments (i.e., turned in after the beginning of class on the day they are due), if complete, may be given half-credit, but it is unlikely you will get written comments on your work.
- If you miss an assignment or quiz due to an illness, please inform me as soon as possible.
- You are responsible for making sure airline reservations at the end of the semester do not conflict with our final exam date.