Math 331, Fall 2017: Section 07
Instructor: Luc Rey-Bellet
Office : LGRT 1423 K
Phone : 545-6020
E-Mail : firstname.lastname@example.org
Office hours : Tu 3:00--4:00, F 11--12:30, or by appointment
Teaching Assistants: Office hours will be held in TBA .
Instructor : Ling-Chen Bu
E-Mail : email@example.com
Office Hours : M 4pm--6pm, Th 5pm--6pm
Instructor: Konstantinos Pantazis
E-Mail : firstname.lastname@example.org
Office Hours : Tu 4pm--6pm, W 5:30pm--6:00 pm
Instructor: Jie Wang
E-Mail : email@example.com
Office Hours : W 4:00pm--5:30pm, Th 4:00pm--5:00pm
Instructor : TBA
Office Hours :
Syllabus: This course is an introduction to ordinary differential equations. The topics covered in this class are
First order linear and nonlinear equations: analytic methods for solving linear equations, separable equations and exact equations.
Modeling with linear first order equations: exponential growth and decay; mixing problems; interest rates; and others.
Modeling with nonlinear first order equations, geometric methods and qualitative analysis, population models, phase portrait and classification of equilibrium points.
Theory, linearity principle.
Homogenous second order linear differential equations with constant coefficients. Real, complex roots, and repeated roots.
Inhomogeneous second order linear differential equations: methods of undetermined coefficients.
Modeling with linear second order equations: Mechanical and electrical oscillations. Forcing and resonances.
Laplace transform methods.
Laplace transform for initial value problems.
Impulse functions and convolutions
Systems of linear differential equations: eigenvalues and eigenvectors, phase portraits.
Review of linear algebra: matrices, eigenvalues and eigenvectors.
System of linear equations with constant coefficients: solving initial value problems with real and complex eigenvalues.
Classification of equilibrium points, sinks, sources, saddles, centers, spiral sinks and spiral sources.
Prerequisites are Math 131-132.
Homework due dates
Text and online homework:
We will use the textbook Elementary Differential Equations, 11th Edition (2017) by William E. Boyce, Richard C. DiPrima, Douglas B. Meade. An electronic copy of the textbook is integrated in the homework system
Wiley-Plus that we will use for the class. When setting-up your account with Wiley plus there will
be an option to purchase a hard copy of the book for a (small) extra-fee.
Grading and Exams
There will be one midterm exam (worth 1/3 of your grade) common to all sections and a final exam (worth 1/3 of your grade) common to all sections. Homework are assigned weekly and done on-line on WileyPLUS
Midterm Exam :
Monday October 16 Time: 7:00pm--9:00pm
Room: GOESSMANN 64
Practice material: Practice problems
Friday December 15 Time: 10:30 am--12:30 pm
Room: MARCUS HALL 131
Practice material: Practice problems
Weekly ScheduleThe following is meant to give a general idea of which sections are covered in which weeks and may be adjusted as needed. All the sections will be covered.
|9/5||1.1, 1.2, and 1.3 Introduction|
|9/11||2.1 Linear ODEs
2.2 Separable ODEs
|2.3 Modelling with ODEs
2.5 Autonomous equations
|M 9/18 last day to drop without record|
2.4, 2.6, and 2.7 Theory and Euler methods
2.8 Exact equations
3.1 2nd order equations with constant coefficients
|10/9|| 3.3 Complex roots
3.4 Repeated roots
|M 10/9 is a Holiday and Tu10/10 follows Monday schedule|
|10/16||3.5 Nonhomogeneous ODEs
3.7 Mechanical and Electrical oscillations
| M 10/16 MIDTERM
Th 10/19 Last day to drop with "W" and select "P/F"
3.8 Forced oscillations
6.2 Initial value problems
6.4 Discontinuous forcing
7.1 Introduction to systems
7.5 Real eigenvalues
|Tu 12/12 is last day of classes|
|Final period 12/14 -- 12/20 (Snow day 12/21)|
|Grades||Final Grade is due by Tu 1/2|