Math 2A
Winter 2010 Home Page
Class 19, Wed., Mar. 17, 2010
We went over more about Laplace transforms.
I'll check chapter 5 and 6 homework during the final exam.
Class 18, Mon. Mar. 15, 2010
We went over Laplace transforms. Please do homework from sections 6.1 and 6.2. We'll finish 6.2 on Wednesday.
Here are some section 5.3 homework problems: #1,3,9,10
Turn in Moldy Bread report on Wednesday.
Class 17, Wed., March 10, 2010
We heard reports and went over sections 5.2 and 5.3.
Do homework through section 5.3.
Class 16, Wed., March 3, 2010
We went over sections 5.1 and some of 5.2. Do homework through section 5.2.
I have not found a substitute for Monday, so there will be no class on Monday, I'll see you on Wednesday. Please turn in homework for chapter 4 on Wednesday.
Class 15, Mon., March 1, 2010
We went over section 4.3. Do homework thru 4.3. We will skip 4.4 for the time being and start on 5.1 on Wednesday.
Class 14, Wed., Feb. 24, 2010
We had exam 2 and went over chapter 4.2. Do homework thru 4.2.
Class 13, Mon., Feb. 22, 2010
We delayed the second exam till Wednesday, Feb. 24.
Turn in chapter 3 homework on Wednesday.
We went over sections 3.6, 3.8, and began 4.1. The exam will cover through the end of chapter 3, beginning where exam 1 ended, in section 2.2.
I'll add some homework for chapter 3.8 shortly.
Class 12, Wed., Feb. 17, 2010
The American Math Assoc. for Two Year Colleges contest exam is being given on Friday, Feb. 19, from 2:30-3:30 PM. Here is a site with old contest problems.
Here is the quiz from Wednesday. Please complete to turn in Monday. Please rewrite if your attempt on Wednesday was unreadable!
We went over section 3.7. The exam Monday will go through section 3.7. Do homework through section 3.7.
Class 11, Wed., Feb. 10, 2010
We went over the rest of section 3.4 and also section 3.5. Do homework for sections 3.5 and 3.6. Section 3.6 is mostly applications of the material in the previous chapter 3 sections. We'll go over it very quickly next week.
Class 10, Mon., Feb. 8, 2010
We went over homework problems on theWronskian.
We also went over eigenvalues and eigenvectors, the long term behavior of solutions of two equations, and part of section 3.4 on complex eigenvalues.
Do homework for sections 3.3 and 3.4.
Turn in chapter 2 homework on Wednesday.
Class 9, Wed., Feb. 3, 2010
We heard reports and also went over sections 2.5, 3.1, and most of 3.2.
Do homework for sections 2.5, 3.1, and 3.2.
Class 8, Mon., Feb. 1, 2010
We went over the exam and also sections 2.3 and 2.4.
Do homework for sections 2.3 and 2.4.
Class 7, Wed., Jan. 27, 2010
We had exam 1 and covered section 2.2. Do homework for section 2.2.
Here's the link for the National Science Foundation Research Experience for Undergraduates program.
Class 6, Mon., Jan. 25, 2010
We discussed exact equations, and their connection to integrating factors and the differential form of differential equations.
Here's a link to a site with a concise description of exact equations.
Here's a link to an associated site with a concise description of a more extensive description of integrating factors than in our text.
We covered material from chapter 2.1 also. Exam 1 tomorrow (Wednesday) will go through 2.1, but not include the extra material on exact equations (yet!).
Do homework from 2.1, and be prepared to turn in chapter 1 homework on Wednesday.
Class 5, Wed., Jan. 20, 2010
We went over homework and also section 1.8 and part of 1.9.
Do homework for sections 1.8 and 1.9.
Class 4, Wed., Jan. 13, 2010
We went over sections 1.6 and 1.7.
Please do homework through 1.7, and also do numbers 19 and 20 in
1.7, and number 54 in the review exercises at the end of chapter 1
(page 142).
Class 3, Mon., Jan. 11, 2010
We went over section 1.5, do homework through 1.5. Here is the moldy
bread
handout.
Class 2, Wed., Jan. 6, 2010
We went over sections 1.3 and 1.4.
Do homework for those two sections (see list above).
Here's the link for Mathematica's
demonstration
project - download the free Mathematica 7 reader, and any
demonstration project you like. We looked at the one for Slope Fields.
Here's a site with a slope
field applet that allows you to plot solutions and print the
results also.
Class 1, Mon., Jan. 4, 2010
We went over sections 1.1 and 1.2. Do homework for those two
sections.