MA 226 Differential Equations

MA 226 - Differential Equations

Course Information

Lecturer: Ryan Goh
Lectures: Tuesday, Thursday, 9:30-10:45 am; PHO 206
Office Hours : MCS 243, Tuesday 1-3pm (priority given to students of MA 226-A1),
Wednesday 10a-12pm (priority for another class I am teaching),
or by appointment, please provide availability when requesting an appointment
Syllabus page here
Textbook: "Differential Equations," 4th edition, by Blanchard, Devaney, Hall, Second Edition. A link to the textbook can be found here.
You will also need a copy of the DE tools software that comes with the textbook, this can be downloaded for free on the publishers website . Note you will need Java runtime software (v8) to run this software.

Course Announcements

I will post any important updates here. 9/16:
My office hours for the week of September 20th will be the following:
  • Tuesday 12p-1:30p virtually on my MA 226 Campuswire live room "#prof-goh-public-office-hours"

    • Homework

    All assignments must be uploaded via the Gradescope application which can be accessed in Blackboard under the tab "Homework Turn-In." See these links for guidelines and an example of a homework solution. Problems only listed in the "Assignment" category should be turned in. Homeworks are due each Thursday at 9am.

    See the aforementioned guideline document for how to compose your homeworks and submit them. There you will also find links on how to scan/upload and submit them using Gradescope.

    Due Date Reading Assignment Suggested problems
    9/9 Section 1.1, 1.2 On a piece of paper, write out what you hope to get out of this class and how you wish to use it going forward, then scan and submit it via Gradescope. This will help me calibrate lectures and help you get acquainted with Gradescope. Any assigment uploaded by the due date will be given full credit. Pg. 14-17 #2,4,5,6,7,12;
    Pg. 33-34 #1,2,6,13,17,25,28,40
    9/16 HW 1: Section 1.2, 1.3,1.4 Pg. 33-36 #40 ; Pg. 47-51 #10,13,14; Pg 61-63 #6,11 (note: a spreadsheet which runs Euler's method, for two example diff. eq.s can be found here in Excel format and in Mac Numbers format ); Pg. 33-36 #35,37,39;
    Pg. 47-51 #2,6,7,9,16,19;
    Pg 61-63 #2,3,10,17;
    9/23 HW 2: Section 1.5,1.6,1.7 Pg. 72-73 #11, 16; Pg. 89 - 93 #4,16,26; Pg.106 -107 #4; Pg. 72-73 #1,5-8, 13,14,18; Pg. 89-93 #1,2,7,9,21,28,29,32,34,36, 39; Pg 106-107 #2,7,13;
    9/30 HW 3: Section 1.7, 1.8,1.9 Pg. 106 - 108 #11,19 ; Pg. 121 - 124 #4,12,17 ; Pg. 133 - 134 #4,10; Pg. 106 - 108 # 9,12, 13,15,18,19; Pg. 121 - 124 #2, 6, 7,9,11,16, 19-22,25,29; Pg. 133 - 134 #1,6,9,10;
    10/7 No Homework this week Pg. 106 - 108 # 9,12, 13,15,18,19; Pg. 121 - 124 #2, 6, 7,9,11,16, 19-22,25,29; Pg. 133 - 134 #1,6,9,10;
    10/14 HW 4: Section 2.1, 2.2,2.3 Pg. 161 - 166 #1,4,8,20;
    Pg. 178 - 183 #6,8,16;
    		 Pg. 161 - 166 #1-4,7,9,15,16,20,21,22,23,24;
    Pg. 178 - 183 #1-6,7,10,11,19;
    Pg. 187-188 #5,6;
    10/21 HW 5: Section 2.3-2.6 Pg. 187-188 #6,#7,
    Pg. 194-195 #2,6, 13;
    Pg. 202-204 #1,2; An apple/mac spreadsheet which runs Euler's method for a 2D-system can be found here, and an Excel version here
    		Pg. 187-188 #8,9
    Pg. 194-195 #5,7, 9,13;
    Pg. 202-204 #4,6;
    Pg. 208-209 #1,2,9,10;
    10/28 HW 6: Section 2.6,2.7, Chapter 2 Review Pg. 208-209 #3-5;
    Pg. 214-216 #6-8;
    		Pg. 208-209 #11; Pg. 214-216 #9-10;
    Pg. 224 - 228 as many problems as you have time for!
    11/4, HW 7: Section 3.1 - 3.3 Pg. 258-264 10, 16,24;
    Pg. 277-280 2,6,16,19;
    Pg. 293- 296 2,4;     		Pg. 258-264 1-4,6-8,12,15,17, 20-23,25, 26,31,33,34,35;
    Pg. 277-280 1-8,11,14,17,18, 21,23;
    Pg. 293-296 1-9,12;27
    11/11, 10:00AM HW 8: Section 3.3-3.5 Pg. 295-296 13, 20
    Pg. 310-314 2,4,6,10,12,
    Pg. 327-330 2,6
    		Pg. 295-296 19,
    Pg. 310-314 1,3,5,7,9,11,13,15,19,21, 23
    Pg. 327-330 4,8,10-13,16,17-19,20-23
    11/18, 10:00AM HW 9: Section 3.5, 3.7 Pg. 327-330 21,22
    Pg. 358-360 2,4,11
    		Pg. 327-330 4,8,10-13,16,17-19,20-23
    Pg. 358-360 3,9,10,12,13
    12/2, 10:00AM HW 10: Section 3.6, 4.1, 4.2,4.3 Pg. 342-346 15, 16
    Pg. 399-402 8,14,20
    Pg. 412-414 2,4,15
    Pg. 424-426 4
    		Pg. 342-346 13-28,
    Pg. 399-402 9,11,13,15,25,27, 28
    Pg. 412-414 5-9,16,17,21,22
    Pg. 424-426 12,15,16,21
    12/9 HW 10: Section 5.1,5.2 This assignment is for you to get practice with Ch. 5 material and does not need to be turned in. Pg.472-477 1,2,4,11,13,17,20,22
    Pg 487 - 490 1,3,5,6,13,21,22

    Midterm and Final information

    There will be two midterms during the semester. They will be held during lecture, in the regular location, on Thursday, September 30th and Thursday November, 11th. Logistics of each exam will be discussed during class.
    The tentative date for the final exam listed in the standard exam matrix is Wednesday, December 15th, 9am-11am, in the normal lecture location. No early finals will be given and please plan your end-of-semester travel accordingly.

    Grades

    Your course grade will assigned as follows
  • Homework scores (15%) - two lowest scores dropped
  • Quizzes (10%) - two lowest scores dropped,
  • Midterm 1 (20%)
  • Midterm 2 (25%)
  • Final exam (30%)




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