Mathematics Department - Math 252 - Elementary Differential Equations

Math 252 - Elementary Differential Equations

General Resources

Course description


Paul Blanchard, Robert L. Devaney & Glen Hall; Differential Equations, with DE Tools Printed Access Card (fourth edition); Cengage, 2011 (864 pp.); (ISBN: 9781133109037)


A suggested syllabus is available. Dr. Sontag's section can find that syllabus and course material's in the course's Sakai website!


Available supplements, in a uniform PDF format are collected here.

  • N1 Introduction to first order equations, with an emphasis on modeling.
  • RTB1 Euler's method, including error estimate and application to existence and uniqueness of solutions.
  • N2 Some comments on bifurcations.
  • N3 Some Remarks on Phase Planes.
  • N4 Introduction to Matrix Exponentials.
  • RTB2 An easily remembered formula for exponentials of matrices with complex eigenvalues.
  • BW1 The method of variation of parameters for solving inhomogeneous systems.

Schedule Archives

Spring 2020 Schedule

Spring 2016

Note : Syllabus and course materials for Dr. Sontag's section in Spring 2016 are somewhat different, and they can found in the course's Sakai website.

Fall 2015 online office hours

The TA's for this course will host online office hours on the website Discourse Technologies at the following times.
  • Monday: 1:40PM–3:00PM (Voepel)
  • Wednesday: 12:00PM–1:20PM (Voepel)

Previous Semesters

For the schedule since 2006 use the drop-down menu above. For some additional links to individual instructor pages and their course materials see the archive.


The links below reflect the state of the course in August 2002, as we moved from the first to the second edition of the textbook. There were no major changes between the first, second, and third editions, so pages created for the first edition continue to be relevant. They are

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Information posted prior to the beginning of the semester is frequently tentative, or based on previous semesters. Textbooks should not be purchased until confirmed with the instructor. For generally reliable textbook information—with the exception of sections with an alphabetic code like H1 or T1, and topics courses (197,395,495)—see the textbook list.

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