Math 201 EV1: Differential Equations (Winter 2012)



Instructor / Office / Phone #
Xinwei Yu / 527 CAB / (780)4925731
Email / Webpage
xinwei2@ualberta.ca / http://www.math.ualberta.ca/~xinweiyu
Location / Time / Office Hours
ETLE1 007/ MWF 2pm - 2:50pm / MWF 11:00am-11:50am or by appointment


Final Review Information (Solution 1, Solution 2)

Midterm Solutions

Pink;   White;   Yellow

Course Information
Important dates.
  • Midterm: Saturday Mar. 3, 2012 2pm
  • Final: Friday Apr. 27, 2012 2pm
  • Deferred exam: Saturday May 5, 2012, 8:30am, CAB357 (Requires approval from your Faculty Office). 
Download course syllabus.

Course Material

Week
Prerequisites
Lecture Notes (Sections)
Common Mistakes
Q&A
Homeworks
1
(Jan. 9 -13)
01 Separable Equations (2.1, 2.2)
02 Linear Equations (2.3)
03 Exact Equations (2.4)
Separable, Linear, Exact
QA01: Linear Equations
HW1 (Sol) (Covers Chap. 2)
2
(Jan. 16 - 20)
04 Homogeneous and G(ax+by) (2.6)
05 Bernoulli and Linear Coefficients (2.6)
06 Constant-coefficient, Homogeneous, 2nd Order Equations (4.2)
Homogeneous, Bernoulli, Constant Coefficient 2nd Order Linear
QA02: Constant Coefficient 2nd Order Linear
HW2 (Sol Updated Feb. 29)
 (Covers 4.2 -- 4.5)
3
(Jan. 23 - 27)
07 Higher Order Equations (4.3)
08 Undetermined Coefficients (4.4)
09 Undetermined Coefficients (Cont.) (4.5)
Constant Coefficient, Undetermined Coefficients
No Question This Week
HW3 (Sol Updated Feb. 23)
(Covers 4.6,4.7,8.5)
4
(Jan. 30 - Feb. 3)
Nothing new is needed.
10 Variation of Parameters (4.6)
11 General 2nd Order Linear Equations (4.7)
12 Cauchy-Euler Equations (8.5)
Variation of Parameters; Cauchy-Euler
QA03: General 2nd Order Linear Equations
HW4 (Sol)
(Covers 7.2 - 7.5)
5
(Feb. 6 - 10)
13 Laplace Transform (7.2)
14 Solving Equations (7.3)
15 More Equations (7.4)
Laplace Transform Method
QA04: Partial Fraction;
HW5 (Sol)
Updated Feb. 10, Added one Prob on Periodic Functions.
(Covers 7.6 - 7.9)
6
(Feb. 13 - 17)
Nothing New is Needed.
16 More Equations (7.5, 7.9)
17 Discontinuous and Periodic Functions (7.6)
18 Convolution (7.7)



7
(Feb. 27 - Mar. 2)
Nothing New is Needed.
19 Impulse Function (7.8)
Midterm Review (All Sections)
Mid Rev Sol 1
Mid Rev Sol 2
20 Review: Chapter 4 & 8.5
21 Review: Chapter 2
(Updated 3pm, Mar 2)



8
(Mar. 5 - 9)
22 Power Series Method (8.2)
23 Radius of Convergence; Examples (8.3)
24 More Examples (8.4)


HW6 (Sol)
Updated Mar. 7, added 3 new problems
Updated Mar. 22, a typo in (59) fixed
(Covers 8.2 - 8.4)
9
(Mar. 12 - 16)

25 Partial Differential Equations: Introduction and Overview of Chapter 10(10.1)
26 Boundary Value Problems (10.2)
27 Separation of Variables: Simple Cases (10.2)


HW7 (Sol)
(Covers 10.1 - 10.4)
10
(Mar. 19 - 23)
28 Sturm-Liouville Theory (10.3)
29 Fourier Series (10.3)
30 Fourier Sine and Cosine Series (10.4)


HW8 (Sol)
Updated Apr. 4, Sol to 1st problem corrected
(Covers 10.3 - 10.5)
11
(Mar. 26 - 30)

31 Heat Equation with Dirichlet Boundary Conditions (10.5)
32 Heat Equation with Neumann Boundary Conditions (10.5)
33 Heat Equation with Non-homogeneous Boundary Conditions (10.5)



12
(Apr. 2 - 4)

34 Nonhomogeneous Heat Equations (10.5)
35 Heat Equations with Other Boundary Conditions (10.5)


HW9 (Sol)
Updated Apr. 19. Typos in Prob3 Corrected
(Covers 10.5)
13
(Apr. 11 - 13)

36 Review of Chapter 8 (Power Series)
37 Review of 7.7-7.9 (Laplace Transform)



Useful Stuff

  • Wolfram Alpha: Play with it and get comfortable facing differential equations!

    Need help to start? Type 
    • what is cosh(x) (then "enter" of course), or
    • differentiate cosh(x), or
    • solve y'' + y = 0, or
    • ...