Math 246 Schedule of Lectures & Lecture Notes, Fall 2010

As they become available, you may download class notes here. They are pdf files, which can be viewed with a pdf viewer.



Lecture Date What was covered Notes
1 Aug. 31 Classification and First-Order Equations. Method of the integrating factor First lecture
2 Sept. 2 Separable First-Order Equations and Existence, Uniqueness and Interval of Definition for Solutions  
3 Sept. 7 Direction Fields and Models Quiz 1 - M1
4 Sept. 9 Population Models. Stability of 1-D systems.  
5 Sept.14 Numerical Methods: The Euler, Improved Euler and Runge-Kutta Integration Methods Quiz 2 - M2 , M3
6 Sept. 16 Exact Equations and Integrating Factors (I)  
7 Sept. 21 Exact Equations and Integrating Factors (II) Quiz 3; Review at 7pm
  Sept. 23 1st In-Class Test  
8 Sept. 28 2nd & higher order homogeneous
linear equations and the Wronskian
9 Sept. 30 2nd order homogeneous const. coeffs.  
10 Oct. 5 Reduction of order; Higher order homogeneous equation with const. coeffs. (I) Quiz 4
11 Oct. 7 Higher order homogeneous w/ const. coeffs. (II)  
12 Oct. 12 non-homogeneous: undetermined coeffs (I) Quiz 5
13 Oct. 14 non-homogeneous: undetermined coeffs. (II)  
14 Oct. 19 non-homogeneous: variation of parameters (I) Quiz 6
15 Oct. 21 non-homogeneous: variation of parameters (II)   
16 Oct. 26 Vibrations Quiz 7; Review at 7pm
  Oct. 28 2nd In-Class Test  
 17 Nov. 2 Laplace Transform  
18 Nov. 4 Step functions & discontinuous forcing
19 Nov. 9 systems of 1st order diff. eqns. Quiz 8
20 Nov. 11 Solving 2D systems for distinct eigenvalues  
21 Nov. 16 Solving 2D linear systems: Phase portraits Quiz 9
22 Nov. 18 Repeated Eigenvalues. Matrix Exponential  
23 Nov. 23 Phase portaits for 2D systems Quiz 10 Stability Diagram
  Nov. 25 No Class Thanksgiving break
24 Nov. 30 Nonlinear planar systems: Linearization Quiz 11; Review at 7pm
  Dec. 2 3rd In-Class Test  
25 Dec. 7 Nonlinear planar systems: Phase portraits (I) Problem 5 Sect 9.3 - Matlab code
26 Dec. 9 Nonlinear planar systems: Phase portraits (II), Stability Last Class