MAT 239, Professor Swift
# MAT 239, Differential Equations

## Prof. Swift, Fall 2017

Paul's Notes
Schedule
WeBWorK
Exams
pdf of the Syllabus.
Here are the
math department policies
and the
university policies
that are technically part of the syllabus.

Here are some graphical resources for differential equations:

Slope Field and Direction Field applet by Darryl Nester of Bluffton University.

Phase Plane applet written by Ariel Barton of the University of Arkansas.

Instructor information, including contact information.

My office hours are MWF 1:35 - 3:00, TTh 3:40 - 4:00.
My office is AMB 110.

Here is my
weekly schedule.
You can always send me e-mail, drop in, or make an appointment if these times aren't convenient.

### Lecture supplements, in reverse chronological order

Nov. 7: Taylor polynomials for 1/(1+x^2).

Oct. 26: Desmos Calculator Driven Oscillator.

Oct. 24: Photo of how to solve linear homogeneous ODEs with constant coefficients.

Here is the handout from class about the method of undetermined coefficients.
Here is the same handout
with solutions.
Here is a scan of the textbook's
table of the form of the particular solution.
All of these special cases are explained by the two rules in my handout.

Oct. 12: Summary of the Theory of Linear Homogeneous ODEs.

Sept. 28: Handout on Euler's Method.

Aug. 29:
Handout on Classification of Differential Equations

Aug. 29: Here is an Introduction to WeBWorK.
Even if you have used WeBWorK in other classes this has some useful information.

NOTE: You login name and password are those of your LOUIE account (e.g. jws8).

You can get extra credit for our course from points earned in the
Problem of the Week.
You can get up to 3 class points per week. I will multiply you points on the ladder by 0.3 to get extra credit.

FAMUS
(Friday Afternoon Undergraduate Math Seminar): Fridays at 3 pm in AMB 164.

Blank Page
MAT 239 Home Page
Schedule
WeBWorK
Exams

Instructor Information
Jim Swift's home page
Department of Mathematics and Statistics
NAU Vista
NAU Louie
NAU Home Page

e-mail: Jim.Swift@nau.edu