AMAT311 Ordinary Differential Equations

MWF 9:20-10:15 ES 147

Instructor: Professor Edward
Thomas ES 132F

Phone 442-4623

Best way to reach me is by
email: et392@albany.edu

Office hours: MWF 10:25-10:45,
12:50-1:30, 2:45-3:15 plus any time I am not otherwise occupied, and, if all
else fails, by appointment.

A link to the class webpage
will be found at: www.albany.edu/~et392/AMAT311.htm

Text: Elementary Differential
Equations by Edward and Penney; we will be covering Chapters 1 through 4, plus
other topics if time permits.

You need to have this text on the first day
of class, not at some indeterminate later date (see the next paragraph.) If you
show up on the first day of class without the text, I will take this as a sign
of LACK OF PREPARATION.

In this course, you can learn both technique
and theory by doing problems. So I am going to assign problems EVERY SINGLE
DAY, starting on day one. They will be collected, graded and returned to you at
the next meeting and will serve as the springboard for what comes next. You
should assign them high priority…I’m not kidding on this.

ASSIGNMENTS THAT ARE HANDED
IN MORE THAN A DAY LATE MAY INCUR A PENALTY.

Daily assignments will count one third of the
grade. The other two thirds will come from a Midterm and a Final.

Let’s articulate
some ground rules:

>
First...there will be ABSOLUTELY NO CELL PHONES, LAPTOPS or any other type of
electronic devices in use during class. Please take care of business and TURN
THEM OFF before you enter the classroom.

>Second…please DO NOT come to class late as it is
disruptive. Be in your seat, mentally alert and ready to participate, at 9:20
when class begins.

> Third …If you get sick or have some
other kind of emergency, PLEASE GET IN TOUCH WITH ME as soon as you can so we
can work things out.

> Fourth,
classes begin on Monday,
August 29th. ( You wouldn’t believe it but in the past some peeps thought
they could begin classes on a day of their own choosing. That was a BIG
mistake.

One productive thing you could
do before classes begin is to dig out your good old Calc 2 text and do as many
integration problems as you have the time and energy for.

June 22^{nd}….added
note: Will you need a calculator? Yes…at the very least, you will need a basic
scientific calculator that does exponentials, logs and trig functions. You
don’t need a graphing calculator…I’ll take care of all that for you.

Here are a
couple of numerical problems that you should be able to do with your calculator:

>Solve for
k: 1.5 = e^{6000k}.

> once you’ve
done that, solve for t : 3300 = e^{kt
}( Answer: t is approximately 120,000 )

> with
the same k, solve: 150 = e^{kt }(
t is around 75,000 )

In case you’re wondering, problems like these come up
in studying the proliferation of languages.