Week 4: April 2226
Sections covered: 2.4 and 2.5.
Midterm Exam: Friday, covering material from Sections 1.11.8 and 2.12.5. Thursday’s class will be an open hour for questions and studying.
The Latest News and Info
Flowchart for FirstOrder Differential Equations
For those who missed it in class (or just want a digital copy), here is the flowchart we saw in class on Monday. Enjoy! Download
Slope Fields
Below are the slope fields we saw in class in Week 1. On the left is the slope field, and on the right is the slope field together with several solution curves. [...]
Welcome to Math 244!
Welcome to our course website for Math 244 (Spring 2019). Everything relevant to the course is available here. Please take a moment to familiarize yourself with the site. You'll find sections for the homework, [...]
Course Material
Homework
All problems are taken from our textbook, Differential Equations and Linear Algebra, 4^{th} edition, by Goode and Annin. Homework will not be collected, but quiz and exam problems will be based on these assigned problems. It is important to work through enough of the assigned problems until you feel comfortable with all of the material.
Homework 1
Section 1.1: 17 (odds)
Section 1.2: 111 (odds), 2329 (odds), 3339 (odds)
Section 1.3: 17 (odds), 2127 (odds)
Section 1.4: 19 (odds), 15, 19, 25, 27
Section 1.5: 1, 3, 5
Section 1.6: 1, 3, 5, 9, 17, 19
Homework 2
Section 1.7: 1, 3, 5
Section 1.8: 115 (odds)
Homework 3
Section 2.1: 1, 3, 13, 15
Section 2.2: 1, 3, 5, 7, 11
Section 2.3: 1, 3, 9, 11, 1523 (odds)
Section 2.4: 17 (odd), 1925 (odd)
Section 2.5: 1321 (odd), 37, 51, 53
Quizzes
There are weekly inclass quizzes, consisting of a few problems on topics covered that week. At the end of the quarter, your lowest quiz score is dropped and the average of your remaining scores is worth 25% of your Overall Score.
MakeUp Policy
If you have a scheduling conflict with a quiz or exam, contact me prior to the quiz/exam in order to schedule a makeup. Makeups may be taken early or the following class day. Makeups taken two or more class days late will be subject to a late exam penalty of 10% per day. All makeups must be completed within one week of the original exam.
Quiz 1
Covering Sections 1.11.6.
Quiz 2
Covering Sections 1.7 and 1.8.
Exams
There are two inclass midterm exams and a cumulative final exam. Each midterm exam is worth either 15% or 20% of your Overall Score, depending on whether that exam score is lower or higher than your final exam score, respectively. Your final exam is worth either 35%, 40%, or 45%, depending on whether your final exam score is higher than neither, one, or both midterm exams.
Accommodations
If you have a disability for which you are or may be requesting an accommodation, you are encouraged to contact me as well as the Disability Resource Center (Building 124, Room 119; Tel: (805) 7561395), as early as possible in the term.
Exam 1
Covering Sections 1.11.8 and 2.12.5.
Exam 2
Covering Sections 4.24.6 and 6.16.5.
Final Exam
 Covering everything we learned this quarter. The exam will be roughly twice as long as a midterm exam, and will break down as follows:
 Exam 1 material: 1/4 of exam
 Exam 2 material: 1/4 of exam
 New material: 1/2 exam
Course Schedule
All sections refer to our textbook, Differential Equations and Linear Algebra, 4^{th} edition, by Goode and Annin. Homework will not be collected, but quiz and exam problems will be based on these assigned problems. It is important to work through enough of the assigned problems until you feel comfortable with all of the material.
Accommodations
If you have a disability for which you are or may be requesting an accommodation, you are encouraged to contact me as well as the Disability Resource Center (Building 124, Room 119; Tel: (805) 7561395), as early as possible in the term.
Week 1
Date  Sections Covered  Homework  Exam 

Monday, June 25  1.1: Differential Equations Everywhere
1.2: Basic Ideas and Terminology 1.3: The Geometry of FirstOrder Differential Equations 
1.1: 17 (odds)
1.2: 111 (odds), 2329 (odds), 3339 (odds) 1.3: 17 (odds), 2127 (odds) 

Tuesday, June 26  1.4: Separable Differential Equations
1.5: Some Simple Population Models 
1.4: 19 (odds), 15, 19, 25, 27
1.5: 1, 3, 5 

Wednesday, June 27  1.6: FirstOrder Linear Differential Equations
1.7: Modeling Problems Using FirstOrder Linear Differential Equations 
1.6: 1, 3, 5, 9, 17, 19
1.7: 1, 3, 5 

Thursday, June 28  1.8: Change of Variables  1.8: 115 (odds)  Quiz 1 Solutions 
Week 2
Date  Sections Covered  Homework  Exam 

Monday, July 2  2.1: Matrices: Definitions and Notation
2.2: Matrix Algebra 2.3: Terminology for Systems of Linear Equations 
2.1: 1, 3, 13, 15
2.2: 1, 3, 5, 7, 11 2.3: 1, 3, 9, 11, 1523 (odds) 

Tuesday, July 3  2.4: RowEchelon Matrices and Elementary Row Operations
2.5: Gaussian Elimination 
2.4: 17 (odd), 1925 (odd)
2.5: 1321 (odd), 37, 51, 53 
Quiz 2 Solutions 
Wednesday, July 4  No class (Academic Holiday)  
Thursday, July 5  2.6: The Inverse of a Square Matrix
2.8: The Invertible Matrix Theorem I 
2.6: 1, 3, 5, 9, 11, 13, 21
2.8: 5 
Quiz 3 Solutions 
Week 3
Date  Sections Covered  Homework  Exam 

Monday, July 9  Chapter 3: Determinants  3.1: 1731 (odds), 35, 43, 45
3.2: 19 (odds), 15, 17, 39, 41 3.3: 7, 9, 13, 15, 19, 23, 25 

Tuesday, July 10  Midterm Exam Solutions  
Wednesday, July 11  4.2: Definition of a Vector Space
4.3: Subspaces 
4.2: 1, 5, 7, 11, 13
4.3: 1, 3, 5, 7, 17, 19, 21, 23, 25, 27 

Thursday, July 12  4.4: Spanning Sets
4.5: Linear Dependence and Linear Independence 4.6: Bases and Dimension 
4.4: 1, 3, 11, 13, 15, 23, 25, 27, 29, 37
4.5: 1, 3, 5, 7, 19, 21, 25, 27, 35 4.6: 1, 3, 5, 19, 21 
Week 4
Date  Sections Covered  Homework  Exam 

Monday, July 16  8.1: General Theory for Linear Differential Equations
8.2: Constant Coefficient Homogeneous Linear Differential Equations 
8.1: 1, 3, 5, 17, 23, 25, 27, 39
8.2: 1, 3, 9, 11, 15, 17, 21, 23, 27, 31, 35, 37 

Tuesday, July 17  8.3: The Method of Undetermined Coefficients: Annihilators  8.3: 1, 3, 5, 7, 9, 11, 17, 19, 21, 25, 27, 33, 35  Quiz 4 Solutions 
Wednesday, July 18  9.1: FirstOrder Linear Systems
9.2: Vector Formulation 9.3: General Results for FirstOrder Linear Differential Systems 
9.1: 1, 3, 9, 15, 17, 19
9.2: 1, 3, 7 9.3: 1, 3, 5 

Thursday, July 19  7.1: The Eigenvalue/Eigenvector Problem
7.2: General Results for Eigenvalues and Eigenvectors 
7.1: 1, 3, 7, 13, 15, 21, 23, 25, 29
7.2: 1, 3, 7, 11, 13, 15, 17, 21 
Quiz 5 Solutions 
Week 5
Date  Sections Covered  Homework  Exam 

Monday, July 23  9.4: Vector Differential Equations: Nondefective Coefficient Matrix  9.4: 1, 7, 11, 13, 17, 19  
Tuesday, July 24  9.5: Vector Differential Equations: Defective Coefficient Matrix  9.5: 1, 3, 5, 7, 13, 15  Quiz 6 Solutions 
Wednesday, July 25  9.8: Matrix Exponential Function and Systems of Differential Equations  9.8: 3, 5, 9  
Thursday, July 26  Final Exam 