## Math 219 Introduction to Differential Equations (Spring 2014)

#### This page is for archival purposes only! Students should use ODTU-Class

The problems from the textbook below are simple, standard examples of basic problems. We suggest that you use them to check your understanding of material from the lectures. The problems suggested from below are in edition 9 of the textbook.

 Week 1: Feb.17-21 1 Introduction, Directional FieldsChapter 2. First Order Differential Equations§2.2: # 1-8, 9-12, 31, 34, 36, 38 2 §2.1: # 1-12, 13-20, 30, 31, 39-42 §2.3: # 2, 3, 5, 18 Week 2: Feb.24-28 3 §2.4: # 1-12, 22, 23-25 4 §2.6: # 1-12, 18-20, 22, 25-27 Week 3: Mar.3-7 5 Chapter 7. Systems of First Order Linear Equations§7.2: # 7, 16-19, 21, 24, 26 6 §7.3: # 4-6, 9-11, 13-15, 19, 20-25 Week 4: Mar.10-14 7 §7.4: # 2, 6, 7 §7.5: # 5-11, 13, 17, 25, 27 8 §7.5: # 5-11, 13, 17, 25, 27 §7.6: # 5, 6, 7, 9, 13, 19 Week 5: Mar.17-22 9 §7.7: # 5, 7, 9, 12, 15, 16 10 §7.8: # 1, 3, 5, 8, 12, 18, 19, 20, 21 §7.9: # 3, 10, 11 Midterm 1: Thursday, 20 March at 17:40 Week 6: Mar.24-28 11 Chapter 4. Higher Order Linear Equations§4.1: # 3, 2, 18, 19, 23, 24 12 §4.2: # 19, 21, 22, 23, 30, 28 Week 7: Mar.31-Apr.4 13 Chapter 3. Second Order Linear Equations 14 §3.4: # 8-10, 25, 26, 29 Week 8: Apr.7-11 15 §3.5: # 5, 8, 16, 20, 22, 24, 25 16 §3.6: # 14, 15, 17, 20 Week 9: Apr.14-18 17 §4.3: # 1, 2, 3, 10, 13-15 18 Week 10: Apr.21-25 19 §3.8: # 18, 5, 7 20 Week 11: Apr.28-May 2 21 Chapter 6. The Laplace Transform§6.1: # 5, 13, 15, 26, 27 22 §6.2: # 8, 9, 10, 15, 18, 23 §6.3: # 10, 11, 12, 14, 15, 16, 18, 20, 21, 22 Midterm 2: Saturday, 3 May at 15:40 Week 12: May 5-9 23 §6.4: # 4, 10, 11, 13, 16 24 §6.5: # 3, 5, 9, 12 §6.6: # 1, 2, 6, 10, 14, 16 Week 13: May 12-16 25 Chapter 10. Partial Differential Equations and Fourier Series§10.1: # 3, 5, 8 26 §10.2: # 13, 15, 18 Week 14: May 20-23 27 §10.4: # 16, 17, 18 28 §10.5: # 2, 5, 8 FINAL EXAM: Saturday, 31 May at 9:00

If you are using edition 8 of the textbook, you should make the following modifications:

• Questions for 7.3 should be 3-5, 8-10, 12-14, 18, 19-24
• Questions for 6.3 should be 8, 9, 11, 12, 14, 15, 17
• Section numbers 3.4 - 3.8 should be 3.5 - 3.9.