Math 20D -- Winter 2011 -- 110 Peterson Hall, MWF 4-4:50PMTextbook: Elementary Differential Equations, Boyce and Diprima, 9th editionOffice Hours: Monday 2-3PM, Wednesday 3-4PM, Friday 1-2PM, Office: AP&M 5220Teaching Assistants: James Berglund, email: jberglun@math.ucsd.edu, office: AP&M 6446,                                            Office Hours:  Monday 1-3PM in office, Tuesday 10AM-12PM in Matlab Lab                                                                                      Jorge Gonzalez, email: jlg005@math.ucsd.edu, office: AP&M 6414                                           Office Hours: Thursday  10AM-12PM in office, Thursday 1-2PM in Matlab Lab                                           Mike Gao, email: tgao@math.ucsd.edu, office: AP&M 6452                                           Office Hours: Tuesday 3:30-4:30PM in office, Wednesday 4-5PM in Matlab LabCourse Policies and Grading: All information concerning grading, homework and exams is in the course policies page.Calendar and Syllabus: Important dates and lecture schedule are in the course calendar. This calendar is subject to revision during the term.Matlab Assignment Info: www.math.ucsd.edu/~math20dPractice Problems: Problems for Midterm #1 are available here in pdf format.                                                   Problems for Midterm #2 are available here in pdf format. Explanations on how to set up equations for the word problems are here in pdf format.                                         Problems for the Final Exam are available here in pdf format. Explanations on how to set up equations for the word problems are here in pdf format.Homework Assignments: Homework #1: Due January 12thSection 1.1:  2,6,18,19,20,23Section 1,2:  3,12,13,14Section 1.3:  1,5,8,12,18 Section 2.1:  15,20,22(bc),30,31Section 2.2:  2,4,7,14,30(abcde),32(bc)Homework #2: Due January 19thSection 2.3: 1,2,7,9,16,17Section 2.4: 7,14,22Section 2.5: 3,12,20,22Section 2.6: 1,8,10,16Homework #3: Due January 26thSection 3.1: 1,4,9,12,18,23,25Section 3.2: 5,14,23,24Homework #4: Due February 9thSection 3.3: 5,14,22,25Section 3.4: 8,12,15,19,27Section 3.5: 2,3,6,11,13Section 3.6: 3,5,7,12,14Homework #5: Due February 16thSection 7.1: 1,2,6,19,20Section 7.2: 1,2,5,22,23Section 7.3: 1,16,17,19,20Homework #6: Due February 23rdFor all of the problems that require drawing, please draw the phase plane, not the direction field.Section 7.5: 3,4,7,15,29Section 7.6: 3,4,10,13Section 7.8: 2,3,4Homework #7: Due March 9thSection 7.9: 1,3,4Section 5.1: 9,17,19,23Section 5.2: 1,7,9Section 5.3: 1,5,6,7Extra Homework For Laplace Transform:Section 6.1: 5(a,b), 11Section 6.2: 5,8,12,15,21Section 6.3: 1,5,7,9,15Section 6.4: 1,2,5Section 6.5: 1,2,7