arminstraub.com

Spring 2014: Differential Equations Plus (Math 286)

Overview

Instructor
Armin Straub
308 Altgeld Hall
astraub@illinois.edu
(217) 300-0426 (please use e-mail whenever possible)
Office hours
Wednesdays, 10:30-11:30am, or by appointment
Lecture
Section E1 meets MTWR, 1:00-1:50pm, in 160 English Building.
Section G1 meets MTWR, 3:00-3:50pm, in 160 English Building.
Teaching Assistants
Grader Section E1: Junxian Li — jli135@illinois.edu
Grader Section G1: Liyuan Cao — cao22@illinois.edu
Tutor: Nuoya Wang — nwang12@illinois.edu
Tutoring hours
Mondays, 4:00-8:00pm, in 445 Altgeld Hall
Tuesdays, 5:00-6:00pm, in 445 Altgeld Hall
Wednesdays, 7:00-8:00pm, in 445 Altgeld Hall
Thursdays, 4:00-7:00pm, in 447 Altgeld Hall
Midterm exams
Thursday, February 13 — 8:00-9:20pm, in 213 Greg Hall
Thursday, March 13 — 8:00-9:20pm, in 23 Psych (Section E1) and 112 Chem Annex (Section G1)
Thursday, April 17 — 8:00-9:20pm, in 150 ASL
Final exam
Friday, May 9 — 7:00-10:00pm, in 141 Loomis
(Conflict exam: May 9, 1:30-4:30pm)
Text
Differential Equations and Boundary Value Problems: Computing and Modelling,
4th Edition, by C. H. Edwards and D. E. Penney (Prentice-Hall, 2008)
Syllabus
syllabus.pdf
Emergency information
Online Grades
Compass 2g

Homework and lecture sketches

Homework will be assigned after most classes and is posted here.

The graded part is always due on the Tuesday of the week following the week it was assigned in (giving you at least four days to work on).

Date Sketch Study problems Graded homework
01/21 lecture01.pdf Section 1.1: 2-5, 13, 15, 17, 18, 37, 38 none
01/22 lecture02.pdf Section 1.1: 35, 36; Section 1.2: 3-6, 11, 25 Section 1.2: 10, 31
01/23 lecture03.pdf Section 1.3: 1, 2, 11, 21 Section 1.3: 22
01/27 lecture04.pdf Section 1.3: 18, 27; Section 1.4: 1-5, 10, 21-23, 26 Section 1.3: 13, 14; Section 1.4: 18
01/28 lecture05.pdf Section 1.5: 2-6, 16, 20, 29 Section 1.5: 14
01/29 lecture06.pdf Section 1.5: 37; Section 1.6: 55-58, 63 Section 1.5: 33; Section 1.6: 65
01/30 lecture07.pdf Section 1.6: 2, 3, 6, 8, 43, 44, 47 Section 1.6: 48
02/03 lecture08.pdf Section 2.1: 1, 9; Section 2.3: 1-3; Section 3.1: 2, 3, 17, 29 Section 2.1: 10
02/04 lecture09.pdf Section 3.1: 33, 35, 38 Section 3.3: 28
02/05 lecture10.pdf Section 3.2: 17, 18, 20; Section 3.3: 5, 6, 21, 25 Section 3.3: 24
02/06 lecture11.pdf Section 3.3: 8, 16, 17, 39, 40 Section 3.3: 23, 36
02/10 lecture12.pdf Section 3.2: 1-5, 27 none
02/11 lecture13.pdf Section 3.2: 7-9, 30 none
02/12 lecture14.pdf none none
02/13 more review none none
02/17 lecture15.pdf Section 3.5: 1-4, 21-23, 31 Section 3.5: 14, 32
02/18 lecture16.pdf Section 3.5: 15, 20, 26-30 Section 3.5: 17
02/19 lecture17.pdf Section 3.5: 51, 57-58 Section 3.5: 60
02/20 lecture18.pdf Section 3.4: 2, 3, 5, 7 Section 3.4: 4
02/24 lecture19.pdf Section 3.4: 15-17; Section 3.6: 19 Section 3.4: 19
02/25 lecture20.pdf Section 3.6: 8, 11, 15 Section 3.6: 18
02/26 lecture21.pdf Section 4.1: 2-4, 12, 13, 24 Section 4.1: 17
02/27 lecture22.pdf Section 5.1: 1-4, 8 Section 5.1: 5
03/03 lecture23.pdf Section 5.1: 11, 12, 15, 16 Section 5.1: 19
03/04 lecture24.pdf Section 5.1: 22, 23, 27, 31, 32 Section 5.1: 36
03/05 lecture25.pdf Section 5.2: 1-3 Section 5.2: 6 (without plot)
03/06 lecture26.pdf Section 5.2: 17, 21, 39 Section 5.2: 18, 40
03/10 lecture27.pdf Section 5.2: 10, 11, 24 none
03/11 lecture28.pdf none none
03/12 lecture29.pdf none none
03/13 more review none none
03/17 lecture30.pdf Section 5.4: 7, 8, 32 Section 5.4: 23
03/18 lecture31.pdf Section 5.4: 3, 4, 7 Section 5.4: 29
03/19 lecture32.pdf Section 5.4: 25, 28, 33 Section 5.4: 34
03/20 lecture33.pdf Section 5.5: 2-4, 21 Section 5.5: 22
03/31 lecture34.pdf Section 5.5: 23, 25, 26 Section 5.5: 27
04/01 lecture35.pdf Section 5.5: 12, 35 Section 5.5: 37 (bonus!)
04/02 lecture36.pdf Section 5.6: 1, 8, 11 Section 5.6: 13
04/03 lecture37.pdf Section 5.6: 8, 13 (using variation of constants) none
04/07 lecture38.pdf Section 5.6: 23, 24 Section 5.6: 16
04/08 lecture39.pdf Section 9.1: 4, 8-11, 13 Section 9.1: 15
04/09 lecture40.pdf Section 9.2: 2, 5 Section 9.2: 15
04/10 lecture41.pdf Section 9.4: 7-9 Section 9.4: 1
04/15 lecture42.pdf none none
04/16 lecture43.pdf none none
04/21 lecture44.pdf Section 7.1: 1, 4, 16, 26, 27 none
04/22 lecture45.pdf Section 7.1: 13, 19, 21, 29, 30; Section 7.2: 1 Section 7.2: 2
04/23 lecture46.pdf Section 7.2: 3, 9, 11 Section 7.2: 12
04/24 lecture47.pdf Section 7.5: 3, 4, 13, 19 Section 7.5: 32, (bonus: 35)
04/28 lecture48.pdf Section 3.8: 1, 2 Section 3.8: 3
04/29 lecture49.pdf Section 9.5: start reading (gloss over "The Heated Rod") none
04/30 lecture50.pdf Section 9.5: 1, 3, 5 Section 9.5: 10

If you have not yet obtained the textbook, you will find the problems in the scans below.

Exams and practice material

There will be three in-class midterm exams and a comprehensive final exam. Notes, books, calculators or computers are not allowed during any of the exams.

Our exam schedule is:

  • Midterm Exam 1: Thursday, February 13 — 8:00-9:20pm, in 213 Greg Hall
  • Midterm Exam 2: Thursday, March 13 — 8:00-9:20pm, in 23 Psych (Section E1) and 112 Chem Annex (Section G1)
  • Midterm Exam 3: Thursday, April 17 — 8:00-9:20pm, in 150 ASL
  • Final Exam: Friday, May 9 — 7:00-10:00pm, in 141 Loomis

The following material will help you prepare for the exams.