Math 331-4: Fall 2012

 

 Instructor : Hongkun Zhang
 Office :  1340  LGRT
 Phone :  545-2871
 E-Mail :   hongkun <at> math.umass.edu
 Homepage:   http://www.math.umass.edu/~hongkun/teach-331-12.html

            It will be updated regularly. Check it often for information about quizzes, homework and exams!  


Class Meeting : TuTh  11:15 AM – 12:30 PM LGRC A301

 

Office Hours

Tuesday. 2:30---3:30 pm

 

Teaching Assistants:

   They will be holding office hours that are open to students in all sections, their office hours will be updated soon. The will occur in the late afternoons on most days of the week at  times and location TBA. Students can obtain assistance with coursework during scheduled hours. An appointment is not needed. The course TA's will also be scheduling review sessions prior to each exam.

 

Matthew Brown office: 1235L LGRT ph 5-4773  email: mbrown@math.umass.edu
Jan Henry office 1235L LGRT ph 5-4773  email:  henry@math.umass.edu 

 

 TAs office hours: 

 

Mondays, Wednesdays: 4-5:30 pm room 1322 LGRT (Matt)

Tuesdays, Thursdays: 4-5:30 pm room 0123 LGRT (Jan)

 

Prerequisites for this course:

Calculus I,II. That is, a thorough knowledge and understanding of differential and integral calculus in one variable; some acquaintance with the basic notions of physical science, for the purposes of motivating and applying differential equations; Calculus III (multi-variable) and Linear Algebra are helpful, but not required.

 

Topics covered in this course:

 

 

Text : Differential Equations, 3rd edition by P. Blanchard, R.L. Devaney and G.R. Hall. Brooks Cole. (ISBN-10: 0495012653 ISBN-13: 978-0495012658) (required)

 

Grading : There is a final exam worth 3/8 of the grade and one midterm exam worth 3/8 of the grade. 

                 Homework will be assigned weekly on this website and will not be collected for grading correctness. But you need to turn in all of your homework after midterm exam and before final exam. Complete homework will count 1/8 of the grade.

                 Online homework on Webwork will also be assigned weekly and will be graded online. A quiz will be given occasionally without advanced notice ;  The problems in the quiz are very similar to those in homework. The grades for the homework on Webwork and the quizzes will count 1/8 of the total grade.

                It is VERY important to do homework.

 

Webwork: You can login your account on Webwork from here

                   Your user name is the words in your Umass email address before @,

                   Your password is your student ID number. Please make sure you change your password once you login your account.

 

 

 

 

 

 

Exam schedule : There will one midterm exam and one final exam. The material covered in the first midterm will be announced in time. The final exam will cover mostly the material of the second half of the semester. 

 

 Other policies:
Makeup exams: you must notify me sufficiently in advance if you have a conflict with an evening exam or the final with another exam or if you're unable to take an exam due to illness or due to an emergency. I may require that you provide documentation for the absence.

LDSS accommodations: If you require extended time on exams due to a disability, it is your responsibility to contact your LDSS liason to make arrangements.

 

Weekly Schedule: Homework 

 

               Homework :

               Section 1.1:  3, 5, 19;

               Section 1.2 :1, 5,7,9,11,15,21,23,25,27,33

                  Section 1.3 : 2, 3, 7, 8, 15, 17 (Note you are not required but strongly encouraged to use the CD provided with the book)
               Section 1.6 : 1, 13, 2, 14, 9, 21, (these problems come in pairs!) 29, 31, 39
               Section 1.8 : 1, 4, 8, 9, 20, 21, 22, 29, 31
               Section 1.9 : 1, 3, 5, 7, 8, 13, 25 

         Section 3.1 : 5, 9, 16, 17, 18, 20, 21, 22, 23, 27, 29, 31, 32 

         Section 3.2 : 1, 2, 5, 7, 8 11, 12, 13, 19, 20, 21, 23
   Section 3.3 : 1, 2, 5, 6, 9, 11, 13, 15, 19, 21
   Section 3.4 : 1, 3, 5, 6, 9, 11, 12, 15, 16, 21, 23,
   Section 3.5 : 1, 3, 5, 7, 9, 10, 11, 17, 18, 21, 22.
   Section 3.6 : 1, 3, 4, 9, 10, 11, 13, 15, 19, 21, 23, 27
   Section 3.7 : 1, 3, 4, 9, 10, 11, 12
   Section 4.1 : 5, 6, 9, 11, 15, 16, 20, 21, 27, 28, 31, 39
   Section 4.2 : 3, 4, 13, 14, 17, 18
   Section 4.3 : 3, 4, 5, 10, 11, 12, 15, 16, 19, 21

               Section 6.1 : 1, 2 , 7, 9, 11, 13, 15, 19, 22
      Section 6.2 : 1, 4, 5, 7, 9, 10, 11, 14, 15
      Section 6.3 : 11, 12, 15, 16, 27, 29, 30, 33
      Section 6.4 : 2, 3,4, 5, 6
      Section 6.6 : 1,2, 3, 5