# Math 366: Ordinary Differential Equations

## Course Information

Professor: Kiril Datchev

Email: kdatchev@purdue.edu

Section 71 Lectures: Tuesdays and Thursdays 10:30 to 11:45 am, in REC 122.

Section 61 Lectures: Tuesdays and Thursdays 12:00 to 1:15 pm, in REC 122.

Office hours: Mondays 3:30 to 4:30 PM, Tuesdays and Thursdays 1:20 to 1:50 PM, or by appointment, in MATH 602.

Textbook: *Elementary Differential Equations and Boundary Value Problems*,
by W. Boyce and R. DiPrima. No WileyPlus access code is needed. The current edition number is 10, but the exact edition you use doesn't matter, as the older editions are similar and I won't be using the book to assign homework.

We will try to cover most of chapters 1 (Introduction), 2 (First Order Differential Equations), 3 (Second Order Linear Equations), 4 (Higher Order Linear Equations), 7 (Systems of First Order Linear Equations), 9 (Nonlinear Differential Equations and Stability), and 6 (Laplace Transform).

We will also supplement with material adapted from Professor Eremenko's website and from Professor Lebl's notes.

Grading is based on

Almost weekly homework assignments, worth 1/6 of the total grade,
Almost weekly labs, worth 1/6 of the total grade,
Midterm I, on Wednesday, February 6th, from 8 to 9 pm in ME 1130, worth 1/6 of the total grade,
Midterm II, on Wednesday, March 27th, from 8 to 9 pm in ME 1130, worth 1/6 of the total grade,
a final exam, on Friday, May 3rd, from 7 to 9 pm in WTHR 104, worth 1/3 of the total grade.
Labs are posted here and must be submitted to your lab TA.

Homework assignments are due in lecture on Tuesdays, or in MATH 602 by 1:50 pm. They may be handed in up to one week late for half credit. Here are the assignments:

Homework 1, due January 15th.

Homework 2, due January 22nd. See also the extra notes on reduction of order.

Homework 3, due January 29th. See also the extra notes on Picard iteration.

There is no homework due February 5th, but take a look at the midterm review problems.

Homework 4, due February 12th.

Homework 5, due February 19th.

Homework 6, due February 26th.

Homework 7, due March 5th.

Homework 8, due March 19th.

There is no homework due March 26th, but take a look at the midterm review problems. You may also find the following examples, solutions, and mathlet helpful.

Homework 9, due April 2nd.

Homework 10, due April 9th.

Class is cancelled Tuesday, April 16th.

Homework 11, due April 23rd.

Final review problems.

### University Procedures

Procedures for students with disabilities requiring classroom or exam accommodations.
Emergency preparedness briefing.
Honor pledge.