## 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: | 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.

- Problems from Sections 1.1-1.3
- Problems from Sections 1.4, 1.5
- Problems from Sections 1.6, 2.1
- Problems from Sections 3.1-3.3, 3.5
- Problems from Sections 3.4, 3.6, 3.8
- Problems from Sections 5.3, 5.4
- Problems from Sections 5.5, 5.6

## 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.

- Midterm Exam 1: midterm01-prep.pdf, midterm01-prep-solution.pdf

Here is a past exam. Note that we did not discuss exact equations.

Our exam and solutions: midterm01.pdf, midterm01-solution.pdf - Midterm Exam 2: midterm02-prep.pdf, midterm02-prep-solution.pdf

Here is a past exam. Note that we did not yet discuss endpoint problems; on the other hand, our exam will cover systems of equations.

Our exam and solutions: midterm02.pdf, midterm02-solution.pdf - Midterm Exam 3: midterm03-prep.pdf, midterm03-prep-solution.pdf

Here is a past exam.

Our exam and solutions: midterm03.pdf, midterm03-solution.pdf - Final Exam: final-prep.pdf, final-prep-solution.pdf

Here you can find a past exam (since many people requested that). However, our exam will be considerably different! (Among other things, we did not cover the same material; also, besides the table of Laplace transforms, no formulas will be given to you.)