Differential Equations - Mathematics 23, Winter 2025

Scheduled Lectures and Instructors

Instructor Feng Fu Robert Dougherty-Bliss
Class Section 01 (Kemeny XXX)
MWF 8:50 - 9:55 		Section 02 (Kemeny XXX)
MWF 12:50 - 1:55
x-Hour Th 9:05 - 9:55 T 1:20 - 2:10
Office 210 Kemeny Hall 212 Kemeny Hall
Contact feng.fu AT dartmouth.edu rdbliss AT dartmouth.edu
Office Hours TBA TBA
Homework and
Lecture Plan 		Section 01 Section 02

Grading

The course grade will be based upon on weekly homework (15%), two midterms (25% each) and a final exam (35%).

Plagiarism, collusion, or other violations of the Academic Honor Principle, after consultation, will be referred to the The Committee on Standards.

Exams

There will be two in-class "midterm examinations" and an in-class final examination. These will not be during the regular class times.

Do not make plans to leave Hanover before the end of the final exam week . The exams will not be given earlier to accommodate your travel plans. The exams are scheduled as follows:

Homework

The homework assignments will be assigned on a weekly basis and will be posted here: Section 01 and Section 04 . Homework is due in one week; no late homework will be accepted.

Please follow the homework submission guidelines.

Cooperation on homework is permitted (and encouraged), but if you work together, do not take any paper away with you--in other words, you can share your thoughts (say on a blackboard), but you have to walk away with only your understanding. In particular, you must write the solution up on your own. Please acknowledge any cooperative work at the end of each assignment.

Tutorials

Our graduate teaching assistants will run tutorials, Sunday, Tuesday, and Thursday nights from 7-9pm in 105 Kemeny, focusing on working through problems. Please note that the students in the previous years found these tutorials to be very helpful! Please bring questions you are stuck on! Your TAs are: Emma Hartman and Christopher Coscia.

Textbook

Elementary Differential Equations and Boundary Value Problems (11th Edition) by Boyce & DiPrima, Wiley 2017

ORC Course description

This course is a survey of important types of differential equations, both linear and nonlinear. Topics include the study of systems of ordinary differential equations using eigenvectors and eigenvalues, numerical solutions of first and second order equations and of systems, and the solution of elementary partial differential equations using Fourier series.

Prerequisite:

Mathematics 13

Disabilities

Students with learning, physical, or psychiatric disabilities enrolled in this course that may need disability-related classroom accommodations are encouraged to make an office appointment to see your instructor before the end of the second week of the term. All discussions will remain confidential, although the Student Accessibility Services office may be consulted to discuss appropriate implementation of any accommodation requested. At such a meeting please provide your instructor with a copy of a disability registration form, which lists the accommodations recommended for the student by Student Accessibility Services within the Academic Skills Center. The person you might want to contact at the Academic Skills center is Ward Newmeyer, Director of Student Accessibility Services 205 Collis Center - (603) 646-9900.

Student Religious Observances

Some students may wish to take part in religious observances that fall during this academic term. Should you have a religious observance that conflicts with your participation in the course, please come speak with your instructor before the end of the second week of the term to discuss appropriate accommodations.