MA 226 Differential Equations

MA 226 - Differential Equations

Course Information

Lecturer: Ryan Goh
Lectures: Tuesday, Thursday, 9:30am-10:45 am; STO B50
Office Hours : Tuesday 11am-12:30pm, Wednesday 1pm-2:30pm, or by 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.

Course Announcements

I will post any important updates here.
  • Week of 4/23: The homework problems from sections 6.2,6.3, and 6.4, just assigned, will not be collected or graded (though it is strongly suggested you work through them to get practice with the Laplace transform). There will not be a quiz during the last week of class (i.e. in the discussion sections 4/30, and 5/1).
  • Week of 4/15: I will hold all of my office hours this Tuesday, 4/16, from 11am-1pm, and 4-5pm. There will be no office hour on Wednesday.
  • My office hours on Wednesday 4/10 will be switched to 12-1:30.
  • I will hold a review session on Tuesday, April 2nd, from 6pm-7:30pm, in PSY B55, for the upcoming Midterm 2. For practice problems see the Chapter 2 and Chapter 3 review sections in the textbook.
  • Note the new "Suggested Problems" column in the Homework assignments table below. These problems DO NOT have to be turned each week in but will help you more deeply learn the course material and prepare for upcoming exams.
  • My office hour on Wednesday 2/27 will be switched to 2:30-4pm.
  • My office hour on Wednesday 2/20 will be switched to 9am-10am. Also I will hold an extra office hour/review session on Tuesday, 2/19, in MCS 148, from 6 - 7:30pm. Feel free to come by to get extra help.
  • My office hours this week are changed: They will be Monday 2/11 from 9-10am and Thursday 2/14 at 11-12pm and 1-2pm.
  • My office hours Wednesday, 1/30 are canceled. They will be replaced with Thursday 1/31 at 11a-12p and Friday 2/1 at 2-3pm

    • Homework

    Due in your registered discussion section (Tuesday/Wednesday) of the week listed.
    Week due Reading Assignment Suggested problems
    1/29 Section 1.1, 1.2 Pg. 14-17 # 2,4,6,7,12; Pg. 33-34 #1,2,6,13,17,25,28
    2/5 Section 1.3, 1.4, 1.5 Pg. 47-51 #2,6,10,13,14,16,19; Pg 61-63 #2,3,6,10,11,17 (note: a spreadsheet which runs Euler's method, for two example diff. eq.s can be found here ); Pg. 71-72 #1,4,5,7,8
    2/12 Section 1.5, 1.6, 1.7 Pg. 72-73 #11, 13, 16,18; Pg. 89 - 93 #1,4,9,21,28,29,32,34,36, 39; Pg.106 -107 #2,4,7,13;
    2/19 Section 1.7, 1.8, 1.9 Pg. 106 - 108 #9,11, 12, 15,19; Pg. 121 - 124 #2, 4, 6, 9,10,16, 19-22; Pg. 133 - 134 #1,4,6,9,10;
    2/26 No Homework due Consider studying for the midterm on 2/21 by doing problems from the Ch. 1 Review
    3/5 Section 2.1, 2.2, 2.3 Pg. 161 - 166 #7,8,9,15,16,20,21,22,23,24; Pg. 178 - 183 #6,7,8,10,11,16,19; Pg. 187-188 #4,6;
    3/19 Section 2.2-2.6 Pg. 178 - 183 #9,18,24;
    Pg. 187-188 #3,7,8,;
    Pg. 194-195 #2,5-7, 9, 13;
    Pg. 202-204 #1,2,4,6; An apple/mac spreadsheet which runs Euler's method for a 2D-system can be found here, and an Excel version here
    Pg. 208-209 #1,2,3-5,10;
    3/26 Section 3.1 - 3.3 Pg. 258-264 10, 12,16,17,24,26,33;
    Pg. 277-280 2,6,11,15,16,19;
    Pg. 293- 296 2,4,9,27;     		Pg. 258-264 1-4,6-8, 20-23,25,31,34,35;
    Pg. 277-280 1-8,14,17,18, 21,23;
    Pg. 293-296 1-8,12;
    4/2 Section 3.3-3.5, 3.7 Pg. 295-296 20,21
    Pg. 310-314 2,4,6,10,12,21
    Pg. 327-330 2,4,6,8
    Pg. 358-360 1, 2
    		Pg. 295-296 19,
    Pg. 310-314 1,3,5,7,9,11,13,15,19,23
    Pg. 327-330 10-13,16,17-19,20-23
    Pg. 358-360 3,5,11,12
    4/9 Section 2.8, Pg. 222 - 223; 1,2,4,5
    		Pg.222-223; 3
    4/16 Section 4.1-4.3 Pg. 399-402 2-4,14,20,28
    Pg. 412-414 2-4,7,15,17
    Pg. 424-426 2,4,10,16
    		Pg. 399-402 9,11,13,15,25,27,
    Pg. 412-414 5-9,16,21,22
    Pg. 424-426 12,15,16,21
    4/23 Section 4.4,5.1,6.1 Pg.436-438 2,4,6,
    Pg. 472-477 1,4,8,17,21
    Pg. 577-578 2,4,8,14,16,18
    		Pg.436-438 3, 7,9
    Pg.472-477 2,3,11,13,20
    Pg. 577-578 1,3,7,9,13,15,24
    4/30 Section 6.2, 6.3,6.4,6.6 This homework will not be collected./td>


    		Pg. 585-587 1,2,4,6,9,11,
    Pg. 599-601 1-4, 6-8, 11,12,15,16,27,29-31
    Pg. 608-609 2,3,6
    Pg. 624-6235 1,2,5,6,8
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