MAT 274, Fall 2010

Dr. Bin Cheng

Office hours M,W,Th 9-10am at PSA841

• Course description (PDF)
New course description (PDF) in which the prerequisites are changed.
• Announcements
• Test 1 is on Friday, September 24th, in class. It'll cover Chapter 1-3, especially the sections specified as below for HW 1, 2, 3.
• Test 2 is on Friday, October 22th, in class. It'll cover Chapter 3.4 -- 3.6 (sans variation of parameters), 4.1, 5.1 -- 5.2.
• Homework (regarding e-submission of HW)
• HW1 Readings: Section 1.1, 1.3 -- 1.5
• HW2 Readings: Section 1.5, 2.1 -- 2.3
• HW3 (due date postponed to Monday, Sep 20). Readings: Section 2.2 (esp. page 97-98), Section 3.1 -- 3.6
• HW4 (due Oct 4). Readings: Section 3.1 -- 3.5
Changes
• Problem (2v), the LHS of the DE should be y''(x)-9y(x), instead of y''(x)-9y'(x).
• Only turn in Problem 1 & 2 on Monday.
• HW5 (due Oct 13). Readings: Section 4.1, 5.1, 5.2 (till Example 2).
Change: Problem 1, mass=1.
• HW6 (due Oct 29).
Change: Problem 1, the left-hand side of the DE should be, x''+x'+3x+.....
• HW7 (due Nov 05).
• HW8 (due Nov 12). Change: in Problem 1,the LSH of the last equation should have a factor of (lower case) "a".
Another change: in Problem 2c), there should a blank for matrix inverse before the (0.5,1) vector.
• HW9 (due Nov 29).
• HW10 (due Dec 7 or in Monday class).
• Other materials
• Sample exams for test 1 (both took 120 minutes). This one (sans Part I #6 and Part II #5); Another one (sans # 1b, 2b, 3, 5, 8, 9).
• Solutions to HW1, HW2, HW3.
• Practice problems for Section 3.1 --- 3.3 with answers.