Fall 2025
Math 330: Ordinary Differential Equations
Assignments

Assignment #1 (Due Monday, 9/15, in class):
Section 1.1: 2, 13, 14, 15, 19, 20, 22, 23 (when they want you to sketch the direction fields, sketch just a few arrows, say 6 to 8).
Section 1.2: 4, 7, 8, 13, 14
Section 1.3: 5, 6, 9, 10, 12, 14, 15, 18, 19, 20.

Assignment #2 (Due Monday, 9/22, in class):
Section 2.1: 4c, 8c, 14, 17, 30, 35, 36, 40
Section 2.2: 4, 6, 7, 8, 22, 26
Section 2.3: 2, 7, 8, 9, 16
Section 2.4: 2, 3, 9, 12, 23, 25, 28, 30

Assignment #3 (Due Monday, 9/29, in class):
Section 2.5: 2, 4, 12, 15a, 22
Section 2.6: 3, 5, 6, 12, 13, 16, 18
Section 2.7: Solve manually 1ad, 4ad
Section 2.8: Use Picard's method to find at least the fourth approximation and then find - if possible - the function to which the series will converge. Problems 3, 4, 5, 6