# Math 225 Homework Assignments

Note: under dates below, "A" stands for Assigned; "D" stands for Due.
Dates: A:F 1/30/04 D:F 2/6/04 Section: Required Problems: Recommended Problems: Notes: 1.1 2, 3, 6, 8, 10, 14, 15 5, 7, 11, 13 1.2 4, 7, 8, 14, 20, 22b 1, 5, 21 1.2 24, 25, 26, 28 19, 27 1.3 3, 4, 6, 8 5, 17 In addition, you should experiment with the software for plotting direction fields that comes with you book. Chapter 1 Group Project D d-g h 1.4 5, 9, 11 10, 12, 13 Write a computer program to solve the equations using Euler's Method. Graph the true solution and the Euler solution on the same graph. 2.2 5, 6, 9, 12, 17, 20, 22 13, 23 2.3 5, 6, 10, 11, 12, 17, 20 15 3.2 2, 4, 5, 6, 10, 11, 14, 15 7, 13 3.6 7, 8, 10, 19 Write computer programs to solve all problems except #4 Section 3.7 and #9 Section 4.1 3.7 4, 5, 6 4.1 9 4.2 5, 10, 12, 13, 18, 19, 28, 31, 32, 33 9, 11, 17, 39, 43 4.3 4, 6, 10, 13, 24, 25 32, 33, 34 4.4 10, 12, 13, 16, 20, 30 4.5 1, 3, 8, 10, 12, 18, 21, 24, 28, 30 4.6 3, 4, 6, 17 13 5.4 1, 5, 6, 12, 13, 20, 21, 28 Note: play with software from your book for graphing vector fields for systems of ode's. 5.5 1, 4, 6 7.2 4, 6, 7, 10, 14, 16, 19, 28 7.2 29 7.3 3, 8, 10, 12, 16, 25 15, 19, 21 7.4 4, 5, 6, 7, 8 7.4 14, 16, 21, 24, 26, 30 7.5 4, 7, 10, 25, 36 7.6 2, 5, 6, 7, 9, 13, 30, 31 39 9.5 2, 3, 4, 11, 12, 18, 32 Note: Section 9.5 is not to be turned in.