HOME PAGE FOR MA 226 C Spring 2022: Differential Equations

For general information, please see my home page.

MA Office hours

• Me:
• Note: For the time being, office hours will be via zoom-- this is not only safer, but also works better since an unlimited number of people can come attend and there is no long walk across campus just to find out the room is too crowded already. Zoom links for the office hour will be sent via email just before the start time.
• Tuesdays 5-7
• Thursday 6-7
• TF: Rob's hours are F 10-12
• 111 Cummington Mall, rm 253.

Please read the General course information page. This page includes information on

• Academic Conduct
• Grading Criteria
• General Information and Philosophy

For a list of things that annoy me see gripes.

For instructions on how to write up your homework assignments, see instructions.

For additional math help see this list . (As we return to "in person" classes and life, there may be adjustments to these resources...we will have to wait and see (as with a lot of things!)

Course announcements, if any, will be posted below::

Daily homework problems will be announced in class ONLY

Weekly homework assignments will be announced in class and posted here (but posting may be delayed, so check in class).

• Sample homework problem here
• Read sections 1.1 and 1.2
• Read "Money problems" in content on Blackboard
• Read section 1.3
• Weekly assignment #1 Due Tuesday Feb. 1, 11:59 PM: Section 1.1: 3,4,6,7,8, 11, Section 1.2: 5,7,11,13,17,25,27,29,39,41,42, Section 1.3: 7,9,13,14, 16,18, Section 1.4: 1,3,5,6 (Use whatever technology you like!)
• Read sections 1.4 and 1.5
• Read sections 1.6 and 1.7
• Weekly assignment #2 Due Tuesday, Feb 8, 11:59 PM: Section 1.5: 1,3, Section 1.6: 1,7,9,13,19,21,33,35,37, Section 1.7: 1,3,13
• Read section 1.8
• Weekly assignment #3 Due Tuesday, Feb. 15, 11:59 PM: Section 1.8: 3,5,7,9,11,19,21,23,25,29,31, Section 2.1: 7a, 8ab, 17
• Read sections 1.9 and 2.1
• Read sections 2.2, 2.5, and 2.6
• Read section 2.4 and 2.7
• Weekly assignment #4 Due Tuesday Feb. 22 11:59 PM: Setion 2.2:9,10, 11, 13 (use whatever technology you like), Section 2.5: 3,5 (Use whatever technology you like), Section 2.6: 3,4,6, Section 2.4: 13.
• Read section 3.1
• Weekly assignment #5 Due Tuesday Mar 1, 11:59 PM Section 2.7: 7,9, Section 3.1: 24,25,27,33
• Read section 3.2
• Plan: March 14 finish 3.2, March 16 section 3.3, March 18 sectin 3.4, March 21 finish section 3.4.
• Read sections 3.3 and 3.4
• Weekly assignment #6 Due Tuesday March 22, 11:59PM Section 3.2: 1,3,5, 7,9,11,15,16,17, Section 3.3: 1,3,5,7,9, Section 3.4: 3,5,7,8,11,13,15
• Read sections 3.5 and 3.6
• Weekly assignment #7 Due Tuesday March 29, 11:59PM Section 3.5: 1,3,7, 11,17,19,21, Chapter 3 Review page 378 #19,21, Section 3.6: 3,5
• Weekly assignment #8 Due Tuesday April 5, 11:59 PM Section 3.6: 13 and 21, 15 and 23, 17 and 25, 19 and 27 (it is more efficient to do 13 and 21 together, then 15 and 23, etc... Note "solution of the second order equation" means a function y(t) (not a vector!)), 29, 34, 35, 36, 38, 39, 40
• Read sections 4.1,4.2,4.3,4.4
• Weekly assignment #9 Due Tuesday Arpil 12, 11:59 PM Section 4.1: 7,9, 13,17,25,27,29,39, Section 4.2: 1,3,5,7,11,16,17, Section 4.3 1,9,5,13,21 (do the problems in that order--it is more efficient).
• Read sections 6.1, 6.2
• Weekly assignment #10 Due Tuesday April 19, 11:59 PM Section 4.4: 2,4 Review for Chapter 4 (p449) 23,25,27, Section 6.1: 1,2,7,9,15,16
• Read sections 6.3,6.4, 6.6
• Weekly assignment #11 Due Tuesday April 26, 11:59 PM Section 6.2: 9,10,11 Section 6.3: 27,29, Section 6.4:2,4,5
• Read 5.1,5.2, 5.3
• Last Weekly assignment: Due Tuesday May 3 11:59 PM Section 6.6: 1,2,6,7 Chapter 6 review p628: 14,15,16, Section 5.1: 1,3, Section 5.3: 1,5,6,7,8