21-260 Differential Equations

Assignments: Week #1


Monday: Section 1.1, pp. 1-2; Section 1.3, pp. 19-24.
Wednesday: Section 2.2, all; Section 1.1, pp. 2-7.
Friday: Section 2.1, all.


Due Friday 19 January. You may submit your homework before or after your lecture on Friday, or you may put it in your TA's mailbox by 3:20pm. Please make sure your homework includes the following:

  1. Your name (on every page if you ignore #4.),
  2. Your recitation section,
  3. The names of those students with whom you have collaborated,
  4. a staple.

Section 1.3: #2, 10, 27, 30.

To help ease any first week textbook issues you may be having, the problems are available as a pdf file.


For 1.3.30, it is helpful to know that the kinetic energy is

T = (1/2) m v2,
where m is the mass and v is the velocity, and the potential energy is
V = m g h,
where again, m is the mass, g is the acceleration due to gravity and h is the height above the equilibrium point.