Instructor: Dr. Isabel K. Darcy
Department of Mathematics and AMCS
University of Iowa
Office: 25J MLH
Phone: 319335 0770
Email: isabeldarcy AT uiowa.edu
Ways to get help:
Integration Prerequisites:
The following free supplemental online book contains many nice examples and good explanations: Paul's Online Notes: Differential Equations
TENTATIVE CLASS SCHEDULEALL DATES and CONTENT SUBJECT TO CHANGE:
Tentative Schedule  Announcements  
Week 1  

8/21  1.1, 1.2 = 2.2 , notes  html version of ICON page on partial fractions 
8/23  old notes for ch 1 and 2 (pdf)  
8/25  ch 1 (pptx) ,
2.2 annotated slides (AM pptx  OLD),
(PM pptx  OLD) ,  
Week 2  
8/28  slope fields, 2.2 (pptx), 2.1 notes, 2.1 Integrating Factor more examples: AM notes, PM notes, older 2.1 notes 
Due Monday:online WP homework 1 Due Friday Homework 1b (html). 
8/30  more 2.1 notes, more 2.1 notes (Marked), 2.2 + HW2 hints (pptx), 2.3 notes, 2.3 example from p. 9 of old notes for ch 1 and 2 (pdf),  
9/1  2.2 example(pptx) , Quiz 1  
Week 3  
9/4  Holiday 
Due Wednesday: online WP homework 2 
9/6  2.4: Existence and Uniqueness slides, annotated slides, 2.5 Stability  
9/8  2.4, 2.5, 2.5 old slides, old annotated slides 2.4&2.5AM 2.4&2.5PM  
Week 4  
9/11  3.1: 2nd order linear homog, 2.7: Approx 1st order solns , 
Due Monday: Homework 2b and online WP homework 3 Video: 2.7: Euler's method for approximating a function using tangent lines (27:00 min) 
9/13  2.8 Approximating solutions (slides), annotated slides 2.5&2.8PM AM, PM 2.8, 2.7, 3.1),  
9/15  2.8, 3.1  3.4, annotated slides AM PM, Quiz 2  
Week 5  
9/18  3.1  3.2, 3.1  3.4 (old), annotated slides AM PM 
Due Monday: online WP homework 4 For HW 5, notice the behavior of the solutions. Some of these solutions will model mechanical/electrical vibration problems (section 3.7)
Hint for problem 15: to use recommended substitution, note 
9/20  3.1  3.2, annotated slides AM PM Linearity, 3.1  3.4, 3.5, annotated slides AM PM  
9/22  3.2, 3.5 worksheet, answers with explanations.  
Week 6  
9/25  3.2, 3.5 (new), 3.5, 3.6, annotated slides AM, PM 3.5 worksheet, answers, 3.5, annotated slides PM, Review and quiz 2 
Due Monday: online WP homework 5
Exam 1
6:30PM  8:00PM 09/28/2023 Thu W290 CB
/ 100 PH

9/27  Review,  
9/29  3.5, 3.5 worksheet 3.5 worksheet answers  
Week 7  
10/2  3.5, 3.7 , annotated slides AM, PM 
Practice problems 3.5 worksheet,
answers with explanations.
Due Monday:

10/4  Attendance Quiz, 3.7 Rcos(wtd), 3.8 Rcos(wtd)  
10/6  3.7, 3.8 , annotated slides AM, PM 3.7, 3.8 review, 4.1, annotated slides AM, PM  
Week 8  
10/9  3.8, 4.1 , annotated slides AM, PM 
Due Monday: Homework 7b and online WP homework 7 For section 3.6 HW,use matrix form if you use a formula (this will make section 4.4 much easier).
3.7 worksheet (optional  includes more advanced topics NOT covered) 
10/11  4.1, 4.2, annotated slides AM, PM  
10/13  4.1, 4.2, quiz 3, answers  
Week 9  
10/16  Attendance quiz 20/21, 3.7 damping, 4.3, 3.6, annotated slides AM, PM 
Due Monday Oct 23: Homework 8b and online WP homework 8 Solving higher order linear homogeneous DE (See also 4.1/4.2 slides) Intro to Ch 6: LaPlace Transform

10/18  4.4  
10/20  6.1 notes , ONLINE quiz 4  
Week 10  
10/23  6.1  6.3 
Due Monday: online WP homework 9 
10/25  LaPlace table, 6.2  
10/27  6.3, notes, 6.3 answers, 6.3  
Week 11  
10/31  6.3 (see also 11/8) 
Due Monday: online WP homework 10 
11/1  3.8 Resonance, resonance,  
11/3  Review, and online quiz 5  
Week 12  
11/6  Exam 2 problem session 
Due Monday: online WP homework 11 6:30PM  8:00PM Tuesday November 7 in AUD MH over Chapters 3 and 4 and 6.16.4. 
11/8  6.4 example, 6.3, 6.6, 6.4 , 6.4  
11/10  6.5, 6.6, 2023 notes  
Week 13  
11/13  6.6, 7.1, 7.4, annotated slides AM, PM, 2022 notes 
Due Monday: online WP homework 11 part 2 (over 6.4) For 7.5 graphs, you might consider using this pdf for your graphs 
11/15  7.4, 7.5, annotated slides AM, PM, 7.5 graphing, 7.5 graphing, 7.6  
11/17  7.5, 7.6, 2023 notes  
Week 14  
11/27  7.5graphing, Class notes 2023, 7.6, Fall 22 slides 
Due Monday: online WP homework 12 (over 6.5, 6.6, 7.1) and Due Wednesday: Paper Homework 13b: 7.5: 1, 2, 4; 7.6: 1, 2 
11/29  Class notes 2023, 2023 slides , OLD notes and sample quiz  
12/1  9.1, 9.2 , 9.1, 9.2 , and online quiz 6  
Week 15  
12/4  9.2 (2023 version) 
Due Monday: online WP homework 13 (over 7.4, 7.5, 7.6) and Paper homework 14b: 9.1: 1abc, 5abc, 9abc
Due Saturday: 
12/6  9.1, 9.2 , 7.7  
12/8  Review, see also Darcy Lecture under ICON/Modules, Review, Review  
Final's week  
3:00PM  5:00PM 12/15/2023 Fri AUD MH  