|Instructor: Richard Hammack
|Office: 238 Copley
|Work: 752-7210 (and voice mail)
||Wednesday, 9:45--10:45; 1:30 -- 2:30
|Home: 353-8572 (before 9:30 p.m., please)
||and by appointment
Text: A First Course in Differential Equations, by Dennis Zill,
Classic Fifth Edition
Prerequisite: Math 132 or 142
When you studied algebra, you dealt with equations that contained an unknown quantitiy,
or variable. Solving an equation meant finding numeric values for the variable
that made the equation true. In this class, you will also solve equations, but
there is a big difference. The unknowns are functions, not numbers. A
differential equation is an equation that contains derivatives of an unknown
function, and solving it means finding functions that make it true. Differential
equations occur with great frequency in nearly every branch of science, especially
physics and engineering.
You are expected to read the text actively and thoroughly, and to test your understanding
by working problems. I will maintain a Homework Exercise
List. This consists of odd-numbered problems that have answers in the back
of the book. Even though I will not grade these problems, it is absolutely
essential that you work as many of them as possible (including some even numbered
ones), for doing them is the key to your understanding the course material. You
are free to give me your solutions, and I will check them for accuracy.
Your grade is determined by quizzes, three tests, participation, homework and
a final exam. Details follow.
Quizzes: Short (10 to 15 minute) closed-book quizzes are given on a weekly
basis. Quizzes are announced at least a week in advance. Most problems will be
similar to those from the Homework Problem List, though occasionally I will throw
in a new type of problem whose solution demands some creative thought.
Tests: There are three closed-book hour-long tests, scheduled
roughly every 3 weeks. The tests are written under the assumption that you are
studying the material at least 6 hours per week outside of class.
Calculators are not used on the tests.
Participation: Participation means that you in some way demonstrate intellectual
involvement in the course. It does not necessarily mean that you ask
questions and volunteer answers. Active participation may include your working
lots of homework problems, taking advantage of office hours, and displaying
preparedness, dedication and intellectual curiosity.
Graded Homework: I will assign graded homework problems to be due 1 to
3 days per week. You should be prepared to turn these solutions in to me on the
appointed days. However, on some days, instead of collecting the papers, I will
call randomly on several students to present some of their solutions on the board.
I will maintain a Graded Homework List where you
will find the latest assignments.
Final Exam: The final exam is comprehensiv. It is scheduled for Monday,
May 16, 8:30-11:30, in Copley 244. Please remember that a make-up final can be
given only with the consent of the Dean of the College.
Make-up Tests and Quizzes: I will drop your lowest test grade and several
of your lowest quiz and homework grades. If you miss a test or a quiz, that
is one of the grades that will be dropped. As was noted above, a make-up final
can be given only with the consent of the Dean's office.
The 10-point grading scale is used:
Your final average is computed as follows:
|Highest 2 test grades:
Attendance: I do not take attendance, but I do notice if you are not
attending class. If your grades are high, I do not mind if you miss class occasionally.
However, if your grades are low and you miss a lot of class, I will notify your
advisor and the Dean of Students. Excessive absences can result in a lower participation
score. As a matter of courtesy, you should arrive punctually and stay for the
entire duration of each class you attend. Please inform me ahead of time if
you must leave early.
It is especially important to attend class the day after a test has been given,
for important new information is usually introduced then. I reserve the right
to deduct a one- or two-point service charge on each test that, due to
an unexcused absence, is not claimed on the day of class after the test is given.
Cell Phones: Please be sure that all cell phones and pagers are turned
off for the entire duration of each class.
Calculators: Although calculators are not used on tests and quizzes,
they are occassionally useful (though not essential) for verifying homework
answers or for personal exploration of course ideas.
Your calculator should have buttions for ln(x), ex,
cos-1 (or arccos), sin-1 (or arcsin), and tan-1
Internet: Information about this course is posted on the Internet. To
find it, go to my home page (http://faculty.rmc.edu/rhammack/) and
click on "Math 307." There
you will find the syllabus, homework exercise list, a course calendar, grades,
copies of old tests and quizzes, and other announcements. I also post solutions
to the quizzes and tests.
Office: Please feel free to stop by my office whenever you have a question,
or if you just want to chat. You are welcome to come by any time that I am there,
even outside of posted office hours. I will also be happy to schedule an appointment.
Tell me if you are having trouble. Catching up can be very difficult once you
get behind, so let me know as soon as you think there is a problem.
Notice: The Americans with Disabilities Act of 1990 and other federal
laws require Randolph-Macon College to provide a "reasonable accommodation"
to any individual who advises us of a physical, psychological, or learning disability.
If you have a physical, psychological, or learning disability that requires
an accommodation, you must first register with the Office for Disability Support
Services, located in the Higgins Academic Center.