MATH
266 Ordinary Differential Equations
Section
113, Spring 2019
Course Information

Instructor: Guang Lin
Office hours: Tues
1:302:30 PM or by appointment
Email: guanglin@purdue.edu

Textbook:
Elementary Differential
Equations and Boundary Value Problems (10th edition), by W. Boyce and R. DiPrima, with WebAssign access code.

Lecture Calendar with Fillable Notes:
Jan 810 

Jan 1517 

Jan 2224 

Jan 2931 

Feb 57 
Midterm #1 Review 
Practical Midterm #1 
Midterm #1 
Feb 1214 

Feb 1921 

Feb 2628 

Mar 57 

Mar 1214 
Spring Break 
Spring Break 
Spring Break 
Mar 1921 

Mar 2628 

Apr 24 
Midterm #2 Review 
Practical Midterm #2 
Midterm #2 
Apr 911 

Apr 1618 
Final Review 

Apr 2325 
Final Review 
Practical Final 
Practical Final Review 

Lectures Time and Location
Section 113: TR
10:3011:45AM
Classroom: UNIV 303

Course Guide
Please refer to
the Math Department math266 homepage for general course information such as
textbook, homework, exam and grade policy.

Midterm and Final Exam:
Throughout the semester,
there will be two Midterms and one Final Exam. Midterms are in class. The final
exam is in the Final Exam Week. The date and the location will be announced
later in class.
Calculators are NOT
allowed in exams.

Syllabus

Homework:
Homework for this course
consists of two types: online homework and handgraded homework. The online
homework is based on the WebAssign system. Most online homework is due Thursday
11:45pm. The handgraded problems come from three resources: textbook problems,
supplementary problems, and Matlab projects.
Handgraded homework will be collected every Thursday in class. Weekly homework
assignment will be published on the course webpage.
No late homework will be
accepted.
Homework should be
readable and stapled. Illegible scribbling will receive no credit from the
grader. For Matlab projects, you should hand in the
printout of your Matlab session, including the source
code and the generated graphs. You are encouraged to discuss with your
classmates. However, your writeup must be independent. Homework assignments of
high similarity will receive no credit.
This part is based on the WebAssign online homework system.
Handgraded homework problems.
These problems are to be turned in and graded by the grader. A list of the
handgraded homework problems (as well as a list of the online homework
problems) can be found in this assignment sheet.
Handgraded homework problems include three categories:
Textbook problems;
Matlab projects; Project 1, Project 2 , Project 3 .
For example, in the assignment sheet, "2" means Problem
2 of the corresponding section in the textbook; "A" means
Supplementary Problem A; "Project 1" means the Matlab
project 1. Note that "supplementary problems" are mandatory,
not optional.
Weekly homework assignments are listed below. They can also be
found in the assignment sheet.
Homework 
Course 
Online Problems 
Online Problems 
Handgraded Problems 
Handgraded Problems 
Lessons 13 
Section 1.1: #11, #14, #15, #17,
#19 
Jan 17 at 11:45pm 
Section 1.1: #2, #5 
Jan 17 in class 

HW2 
Lessons 46 
Section 2.2: #1, #4, #9a, #22, #23
Section 2.2: Homogeneous Eqns.
#32b Section 2.3: #3, #4 
Jan 24 at 11:45pm 
Section 2.2: #11, #14, #28 Section 2.2: #36; Supplementary
Problem B, C Section 2.3: #1, #2 
Jan 24 in class 
HW3 
Lessons 79 
Section 2.3: #20a, b, #23a, b, c Section 2.4: #2, #4, #7, #11, #18,
#28 (due on Feb. 13) Section 2.5: #3b, #3c, #12b, #12c,
#17b 
Jan 31 at 11:45pm 
Section 2.3: #16, #21, #22, #29 Section 2.4: #17, #22a, b;
Supplementary Problem D Section 2.5: #4, #22;
Supplementary Problem E 
Jan 31 in class 
HW4 
Lessons 1012 
Section 2.6: #1, #3, #6, #8, #10,
#14, #16 Section 2.7: #1a,d*, #4a,d* Section 2.7: #12, #17 
Feb 14 at 11:45pm 
Section 2.6: #18; Supplementary
Problem F Section 2.7: #20 a, b, d Section 2.7: Supplementary Problem G, H, I 
Feb 14 in class 
HW5 
Lessons 1315 
Section 3.1: #1, #2, #6, #7, #10,
#16, #17∗, #23 Section 3.2: #1, #5, #7, #9, #18,
#24, #28* Section 3.3: #1, #6, #8, #10, #11∗, #19 
Feb 21 at 11:45pm 
Section 3.1: #19, #22 Section 3.2: # 13, #14, #25 Section 3.3: # 17, #23 
Feb 21 in class 
HW6 
Lessons 1618 
Section 3.4: #2, #4, #8, #14,
#18b, #23 Section 3.5: #1, #2, #5∗, #8∗, #10∗, #16∗, #18∗, #20∗ Section 3.6: #2, #3, #10, #13 
Feb 28 at 11:45pm 
Section 3.4: #15, #25 Section 3.5: #15∗, #21a , #22a Section 3.6: #15, Supplementary
Problem J 
Feb 28 in class 
HW7 
Lesson 1921 
Section 3.7: #1, #3, #4, #6* Section 3.7: #17 Section 3.8: #6, #9, #10 
Mar 7 at 11:45pm 
Section 3.7: #9, #28 (due Mar 5 in
class) Matlab Project 1 (due Mar 12 in class) Section 3.8: #7 (due Mar 5 in
class) 
Mar 7 in class 
HW8 
Lesson 2224 
Section 4.1:# 3,# 4, #6 Section 4.2: #11, #12, #19, #22,
#31, #34 Section 4.3: #2, #4, #6, #10, #12,
#16, #18 Section 6.1: #1, #4, #10, #12 
Mar 21 at 11:45pm 
Section 4.3: Supplementary Problem
K, (due Mar 12 in class) Section 6.1: #5b, #8, #15 (due Mar
12 in class) 
Mar 21 in class 
HW9 
Lesson 2527 
Section 6.2: #1, #5, #8, #11, #19,
#24, #26 Section 6.3: #13, #14, #17, #19,
#22 Section 6.4: #1a, #2a, #3a, #6a,
#9a, #11a, #12a 
Mar 28 at 11:45pm 
Section 6.2: #10, #21 Section 6.3: #1, #2, #18, #21, #23 Matlab Project 2 
Mar 28 in class 
HW10 
Lesson 2830 
Section 6.5: #1a, #4a, #8a, #11a Section 6.6: #6, #8, #10, #14, #17 Section 7.1: #1, #2, #10a; Section 7.2: #2c 
Apr 11 at 11:45pm 
Section 6.5: #14ab; Supplementary Problem L Section 6.6: #4, #5 Section 7.2: #22, #23; Supplementary Problem M 
Apr 11 in class 
HW11 
Lesson 3133 
Section 7.3: #13, #16 Section 7.5: #9, #15 Section 7.6: #1a, #10, #16ab* 
Apr 18 at 11:45pm 
Section 7.3: #17, #20 Section 7.5: #1, #4; Supplementary Problem N Section 7.6: #2, #6 
Apr 18 in class 
HW12 
Lesson 3435 
Section 7.8: #1c, #7a, #9a Section 7.9: #3, #7 
Apr 25 at 11:45pm 
Supplementary Problem O, P Matlab Project 3 
Apr 25 in class 

Matlab Tutorials:
dfield8
eul
ode45
pplane8
How to use an Mfile

Grading Policy:
Homework assignments:
33.3%
Midterm Exam I: 16.7%
Midterm Exam II: 16.7%
Final Exam: 33%
Scores
of handgraded homework assignments and exams will be published on WebAssign.
Late
homework will not be accepted
Academic
dishonesty are prohibited
The
two worst homework scores will be dropped.

Useful Links:
Department
of Mathematics, Math266 homepage
Blackboard
Department of
Mathematics
Past Final Exam Archive