Elementary Differential Equations, MATH 240, Fall 2009

Instructor: Ivan Blank                                
Office: CW 027

Announcement: 
On Sunday (10/19) there will be a review session for test #3 from 7:30 PM to 9 PM in CW 103. 
On Monday (10/20) there will be a review session for test #3 from 8 PM to 9:30 PM in LS 013.
       (LS is Leasure Hall.  http://www.k-state.edu/maps/index.html?list=code  )
CW 103 will be large enough for everyone, but LS 013 will NOT be.  I plan to review the same material both nights, so if you can make it on Sunday, then you should come then!

Announcement:  If you have any doubt as to whether or not you have H1N1, then do NOT try to take the test on Tuesday.  DO get a note from the doctor, however.

Announcement:  My Friday office hours have returned to normal!

Note:  I still have to check the dates below for errors, but I believe that they are correct.

Course information
Examinations: Semester examinations, Tuesdays, 7:15 -8:15 pm, September 22, October 20, November 17.  These will be held
in Umberger 105.  Final exam, Tuesday, December 15, 11:50 am - 1:40 pm in CW 101.  NOTE CHANGE!!!
Written assignments, labs, on-line homework, extra credit            

Some practice exams    This includes both blank exams and solution keys from previous semesters when Chuck Moore taught the course
Exam 1 solutions    Exam 2 solutions    Exam 3 solutions,   Final Exam solutions
Textbook
Math Department exam archive- even more exams for practice

Notes: Notes on First Order ODEs
           Notes on Second Order ODEs

Schedule

Week of:


Due this week:

August 24      
Lecture: Chapter 1, sections 1, 2 and 3
Lab: Meet for a review.
Recitation:  discuss written assignment 1
nothing                                                      
August 31
Lecture: Chapter 1, sections 4, 5, and 6
Lab: Lab 1 (Chapter 1, section 7)
Recitation: discuss written assignment 1
Written assignment 1 (Friday, Sept. 4)
On-line assignment 1-Separable eqns. (Saturday, Sept. 5)
September 7
Lecture Monday-Labor Day,
Wednesday: Chapter 1, sections 8 and 9
Lab: Lab 2 (Chapter 1, section 8)
Recitation: discuss written assignment 2
Lab 1-Slope fields (Tuesday, Sept. 8)
Written assignment 2 (Friday, Sept. 11)
On-line assignment 2- Exact eqns. (Saturday, Sept. 12)
On-line assignment 3- Linear eqns. (Saturday, Sept. 12)
September 14
Lecture: Chapter 1, sections 12, 13, 15
Lab: Lab 3 (Chapter 1, section 14)
Recitation: discuss written assignment 3
Lab 2 - Numerical methods (Tuesday, Sept. 15)
Written assignment 3 (Friday, Sept. 18)
On-line assignment  4- Bernoulli eqns. (Saturday, Sept. 19)
On-line assignment 5- Homogeneous eqns. (Saturday, Sept. 19)
September 21

Lecture: Monday--review for exam 1
Lab: review for exam 1
Exam 1, Tuesday, September 22, 7:15 p.m. - 8:15 p.m.
Lecture: Wednesday--  Chapter 2, sections 1, 2
Recitation: return and discuss exam 1
Lab 3- Harvesting (Tuesday, Sept. 22)
Extra Credit assignment 1- Numerical methods (Friday, Sept. 25)
On-line assignment 6- Long-term behavior (Saturday, Sept. 26)
September 28
Lecture: Chapter 2, sections 3, 5, 6
Lab: Lab 4 (Chapter 2, section 4)
Recitation:  discuss written assignment 4
Written assignment 4 (Friday, Oct. 2)
On-line assignment 7- Complex  #'s (Saturday, Oct. 3)
On-line assignment 8- Complex var. (Saturday, Oct. 3)
October 5
Lecture:  Monday- Fall Break- no lecture, Wednesday--  Chapter 2, sections 6, 7
Lab: Lab 5 (Chapter 2, section 11)
Recitation: discuss written assignment 5
Lab 4-Complex fcns. (Tuesday, Oct. 6)
Written assignment 5 (Friday, Oct. 9)
On-line assignment 9- 2nd order homogeneous (Saturday, Oct. 10)
October 12
Lecture:  Chapter 2, sections 8, 11, 12, 13
Lab:  Lab 6 (Chapter 2, section 12)
Recitation: discuss written assignment 6
Lab 5- Unforced motion (Tuesday, Oct. 13)
Written assignment 6 (Friday, Oct. 16)
On-line assignment 10- 2nd order inhomogeneous (Saturday, Oct. 17)
On-line assignment 11- Spring-mass (Saturday, Oct. 17)
October 19
Lecture: Monday--review for exam 2
Lab: review for exam 2
Exam 2, Tuesday, October 20, 7:15 p.m. - 8:15 p.m.
Lecture: Wednesday--  Chapter 2, section 14
Recitation:  return and discuss exam 2
Lab 6-Forced motion (Tuesday, Oct. 20)
Extra credit assignment 2 - Boundary value probs. (Friday, Oct. 23)
On-line assignment 12- Circuits (Saturday, Oct 24.)

October 26
Lecture:  Chapter 2, section 15, Chapter 3, section 1
Lab: Lab 7 (Chapter 2, section 15)
Recitation: discuss written assignment  7
Written assignment 7 (Friday, Oct. 30)
Extra credit assignment 3- Partial diff. eqns. (Friday, Oct. 30)
November 2
Lecture:  Chapter 3, sections 2, 3, 5
Lab:  Lab 8 (Chapter 3, section 2)
Recitation: discuss written assignment 8
Lab 7-Num. meths. systems (Tuesday, Nov. 3)
Written assignment 8 (Friday, Nov. 6)
On-line assignment 13-Laplace transforms (Saturday, Nov. 7)
On-line assignment 14-Inverse L.T.'s (Saturday, Nov. 7)
November 9
Lecture:  Chapter 3, sections 5, 6, 7
Lab: Lab 9 (Chapter 3, section 4)
Recitation:  discuss written assignment 9
Lab 8-Gamma function (Tuesday, Nov. 10)
Written assignment 9 (Friday, Nov. 13)
On-line assignment 15-Impulse fcns. (Saturday, Nov. 14)
November 16
Lecture: Monday-- review for exam 3
Lab: review for exam 3
Exam 3, Tuesday, November 17, 7:15 p.m. - 8:15 p.m.
Lecture: Wednesday--  Chapter 4, section 1
Recitation:  return and discuss exam 3
Lab 9-Stability (Tuesday, Nov. 17)
On-line assignment 16-Systems  (Saturday, Nov. 21)
November 23
Lecture:  Monday -- Chapter 4, section 3, Wednesday-- no class, Thanksgiving holiday
Lab: Lab 10 (Chapter 4, section 2)
Recitation: none- Thanksgiving
nothing
November 30
Lecture: Chapter 4, sections 4, 7, 8
Lab: Lab 11 (Chapter 4, section 5)
Recitation: discuss written assignment 10
Lab 10- Taylor series (Thursday, Dec. 3)
Written assignment 10 (Friday, Dec. 4)
Extra credit assignment 4- Padé approx.  (Friday, Dec. 4)
On-line assignment 17- Series solns. (Saturday, Dec. 5)
On-line assignment 18- Radius of convergence (Saturday, Dec. 5)
December 7
Lecture: Monday--Chapter 4, sections 8, 9, Wednesday-- review for final
Lab:  discuss written assignment 11
Recitation: review for final
Lab 11-Series solns. (Tuesday, Dec. 8)
Written assignment 11 (Friday, Dec.11)
On-line assignment 19- Euler eqns. (Saturday, Dec.12)

Final Exam, Tuesday December 15, 11:50 a.m. - 1:40 p.m.