MA341 - Applied Differential Equations I
Dr. Alina Chertock
Office Location: SAS 3212
Phone: (919) 515-3200
Fax: (919) 513-7336
Web Page: http://www4.ncsu.edu/~acherto
Office Hours: T 12:00PM - 1:00PM and H 3:00PM - 4:00PM (or by appointment)
TBA Katherine Varga
Office Location: SAS 3263
Phone: (919) 515-2383
Web Page: http://www4.ncsu.edu/~kyvarga
Office Hours: W 3:00PM-4:00PM
Days: Tuesdays and Thursdays
Time: 10:15AM - 11:30AM
Location: BS 320
- Differential equations and systems of differential equations.
- Methods for solving ordinary differential equations including Laplace transforms.
- Phase plane analysis.
- Numerical methods.
- Matrix techniques for systems of linear ordinary differential equations.
Requisites and Restrictions
Prerequisites: MA 242 or (MA 132 and MA 231)
Restrictions: Credit for this course and MA 301 is not allowed.
Fundamentals of Differential Equations and Boundary Value Problems by Nagle, Saff, and Snider, 6th edition, Addison-Wesley.
This textbook is required.
- I expect you to read sections of the textbook around the time of lectures and attempt homework from those sections. The textbook has
additional examples and discussion that you will find helpful. Some test questions may resemble examples from the textbook.
To access your courses and project spaces, use Moodle pages at
- The instructor maintains a web page specifically for this section at
Actual test dates, any class announcements, some supplementary material, and a week-by-week schedule will be posted there.
- Additional resources this course can be found at:
- The Math Multimedia Center is a tutorial center for undergraduate students that need help in their mathematics courses (100 through 300
level), and is staffed by math graduate students familiar with the material taught in these courses. It is at SAS Hall 2103/2105 on Monday
through Friday between 8:00 am and 5:00 pm. The schedule and the detailed information on tutoring organized by the university can be found at
Tentative Weekly Schedule of Topics (including tests)
Week-by-week schedule (will be revised
during the semester)
- All homework assignments should be completed and submitted on-line using an internet-based homework service called WeBWork
http://webwork.math.ncsu.edu (also found on the Moodle page).
- For your username enter the NCSU unity ID and your NCSU email password. If you are unable to get into WeBWorK for any reason, email the
You are responsible for completing each WebWork homework by the deadline posted on the assignment.
No extensions of WebWork will be given when the request is made after the deadline. Travel plans cannot be considered as a reason for WebWork
Suggested problems from the book will be posted on the course web page. It will not be collected nor graded. You are encouraged to collaborate
on the homework with fellow students, provided that it is done in a way that maximizes the benefit of the homework to all people involved. You
will get maximum benefit from a homework problem if you work hard on it alone before combining your ideas with someone else's. Traditionally
some of the test problems are taken from the homework.
Tests and Exams
There will be three in-class tests (scheduled depending on class progress) and a comprehensive final exam.
- Tentative dates of tests: Test #1 - September 26, Test #2 - October 31, Test #3 - November 26.
- Final exam: December 10, 2013, 8:00AM-11:00AM.
- No books, notes, calculators nor any other aids is allowed/needed at the tests/exams.
- Missed tests/exams:
- There will be NO makeup tests/exams.
- If you miss a test without a valid excuse, a zero will be averaged into your grade.
- If you are forced to miss a test, an excuse from a doctor or other appropriate authorities must be presented.
- If the excuse is accepted, your other course work will be adjusted so that you will not be penalized.
Homework - 15%, class tests - 50% (lowest grade counts half of each of the other two), final exam - 35%.
Grading Scale: 90%-100%: A, 80%-90%: B, 70%-80%: C, 60%-70%: D, less than 60%: F (+ and - will also be used).
- I do not curve grades. It is theoretically possible for everyone in the class to get an A (or an F). Your performance depends
only on how you do, not on how everyone else in the class does. It is therefore in your best interests to help your classmates, while keeping
the academic integrity policy in mind.
- The responsibility for grading homeworks and tests reside with the course instructor and the lecture assistants. If you believe an error
has been made in grading, write a statement making your case and take it to the course instructor during her office hours. Only the
course instructor can make the final decision about any grade.
- All questions about grading should be asked (via a written statement) within a week after a graded
assignment/test is returned. Do not alter the original work!
Requirements for Auditors (AU): Information about and requirements for auditing a course can be found at
Policies on Incomplete Grades: If an extended deadline is not authorized by the Graduate School, an unfinished incomplete grade will automatically change to an F after
either (a) the end of the next regular semester in which the student is enrolled (not including summer sessions), or (b) by the end of 12
months if the student is not enrolled, whichever is shorter. Incompletes that change to F will count as an attempted course on transcripts.
The burden of fulfilling an incomplete grade is the responsibility of the student. The university policy on incomplete grades is located at
http://policies.ncsu.edu/regulation/reg-02-50-03. Additional information relative to incomplete grades for
graduate students can be found in the Graduate Administrative Handbook in Section 3.18.F at
Attendance: Students are expected to arrive on time, to contribute to group work and class discussions, and to stay until the class
ends. Attendance at all meetings of the class is expected every day as it is critical for the understanding of the material and not attending
class serves as its own penalty because this material takes much longer to learn independently. You are responsible for keeping up with missed
work so that you do not fall behind. Office hours will not be utilized to re-teach material presented in class.
Absences: NCSU policy, including what constitutes an 'Excused Absence', is at
- Please check the course webpage regularly, as it will be continuously updated with announcements, any changes in the schedule, homework
problems, solutions, review sheets, and other additional course materials.
- Students will also be notified in class or via email of announcements associated with this course. The email address registered with the
NCSU online directory will be used for this purpose. It is the student's
responsibility to maintain a valid email address and check the email sent to it.
End-of-semester class evaluation
- Schedule: Online class evaluations will be available for students to complete during the last week of class (8:00AM November 22 through
8:00AM December 8)
- Students will receive an email message directing them to a website where they can login using their Unity ID and complete evaluations.
- All evaluations are confidential; instructors will never know how any one student responded to any question, and students will never know
the ratings for any particular instructors.
- Evaluation website: https://classeval.ncsu.edu
- Student help desk: firstname.lastname@example.org
- More information about ClassEval: http://www2.acs.ncsu.edu/UPA/classeval/
Academic Integrity: Students are required to comply with the university policy on academic integrity found in the Code of Student Conduct at
Academic Honesty: See
http://policies.ncsu.edu/policy/pol-11-35-01 for a detailed explanation of academic honesty.
Honor Pledge: Your signature on any test or assignment indicates "I have neither given nor received unauthorized aid on this test or assignment."
Accommodations for Disabilities
Reasonable accommodations will be made for students with verifiable disabilities. In order to take advantage of available accommodations,
student must register with the Disability Services Office (http://www.ncsu.edu/dso) located at 1900
Student Health Center, Campus Box 7509, 919-515-7653. For more information on NC State's policy on working with students with disabilities,
please see the Academic Accommodations for Students with Disabilities Regulation at
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not be tolerated. Retaliation against any person who complains about discrimination is also prohibited. NC State's policies and regulations
covering discrimination, harassment, and retaliation may be accessed at
http://www.ncsu.edu/equal_op. Any person who feels that he or she has been the subject of
prohibited discrimination, harassment, or retaliation should contact the Office for Equal Opportunity (OEO) at 919-515-3148.