Assignment 1:   Problems 4.2, 5.2, 8.2, 10.10a, 12.5   (due Monday, September 17)

Assignment 2:   Problems 13.2, 14.2, 14.3, Computer Problem 1   (due Monday, September 24)

Assignment 3:   Problems 18.3, 18.5, 19.1, 21.1 (except (a)), 22.1 a,b and phase plane sketch   (due Monday, October 1)

Assignment 4:   Problems 24.6, 26.2, 26.14, 28.1, Computer Problem 2   (due Monday, October 8)

Assignment 5:   Problems 32.3, 33.1, 34.3, 34.7, 37.5, 38.2   (due Wednesday, October 17)

Assignment 6:   Problems 39.4, 44.3 (i), (ii), 45.1 a,b, 46.4   (due Friday, October 26)

Assignment 7:   Problems 47.2 (do for parts b,f,m of 45.1. Consider isoclines along which dy/dx=0, finfinity, and corresponding to x=0,y=0), 49.1, 50.1,50.2.
(due Monday, November 5)

Assignment 8:   Problems 50.3, 50.4 (only using Taylor series), 50.5 (use eigenvalues of matrix to determine stability), 54.2a, 54.5, 54.11
(due Monday, November 12)

Assignment 9:   Problems 57.2a, 57.5 (Consider x(0) = beta and sketch paths for different beta), 57.6, 58.1, 59.1
(due Wednesday, November 21 -- there is no Math 321 class that day, so please place assignment under my door).

Assignment 10:   Problems 61.1, 63.1 (omit a), 65.1, 65.3, 65.5, 67.1 (due Wednesday, November 28)

Assignment 11:   Problems 71.1, 73.5, 73.6 (due Wednesday, December 5 -- deadline extended until 12 noon on December 7)

Assignment 12:   Problems 77.1, 78.2 (due Wednesday, December 12)