Math 256: Introduction to differential equations

Information for Dan Dugger's section, Winter 2012

Instructor: Daniel Dugger
Office: 317 Fenton
E-Mail: ddugger@math.uoregon.edu
Phone: (541)-346-4790

Office Hours: M 2-3, Tu 1-2, W 10-11, F 1-2.

Textbook: Elementary differential equations, 9th edition, by Boyce and DiPrima.

Syllabus: We will cover roughly chapters 1-4 and 7 of the textbook.

Grades: There will be FOUR midterms, held every other Friday starting on January 20th: so the dates are January 20, February 3, February 17, and March 2.
Grades will be calculated based on the following percentages:
Homework: 20%
Midterms: 13% each, for a total of 52%
Final: 28%

The final exam is Monday, March 19, 10:15am--12:15pm, in 306 Deady.

Review sheets

Review sheet for midterm #1

Review sheet for midterm #2

Review sheet for midterm #3

Review sheet for midterm #4

Review sheet for final exam . You are not responsible for problems 31 through 37.

Homework assignments

Homework will be due every Wednesday, starting 2nd week. Here are instructions for using Webwork. You can go directly to Webwork by clicking here.

You can find a useful table of integrals here. Just click on the list corresponding to the kind of function you want to integrate.

Assignment due 1/18:

HW1 on Webwork.
The following problems from the textbook (to be done on paper and handed in):
- Section 1.3: #18,20
- Section 2.2: #31, 32, 33 (only do parts a and b on these three)
- Section 2.5: 9, 10.
- Problems 2-5 on the following worksheet.

Assignment due 1/25: No Webwork this week. Hand in the following textbook problems:

Section 2.4: 1-4, 7, 8, 10, 13, 15.
Section 2.3: 1.

Assignment due 2/1:

HW3 on Webwork.
The following problems from the textbook (to be done on paper and handed in):
- Section 2.3: #4
- Section 2.6: #1-3, 16, 21.

Assignment due 2/8:

HW4 on Webwork.
The following problems from the textbook (to be done on paper and handed in):
- Section 3.1: #1,2,22.
- Section 3.2: #1,2,5,7,8,24.

Assignment due 2/15:

HW5 on Webwork.
The following problems from the textbook (to be done on paper and handed in):
- Section 3.4: #4, 18, 23, 24.
- Section 3.3: #3, 4, 5, 19.
- Section 3.5: #1, 3, 14.

Assignment due 2/22:

Section 3.7: #1, 2, 3, 5, 6.

Assignment due 2/29:

Section 3.6: #13, 15.
Section 3.7: #11, 17, 24.
Section 4.2: #11, 12, 14.
Section 4.3: #1, 6, 9, 17.
Section 7.1: #1, 5.
Section 7.2: #1, 21, 22.

Assignment due 3/7:

Section 7.5: #1, 2, 3, 8, 11.
Section 7.6: #1, 2, 4, 6, 14.

Assignment for 3:16: This last assignment will not be handed in, due to dead week. But you are responsible for the problems below:

Section 7.8: #1, 3.
Section 7.9: #1, 3, 7.
For Section 7.1, #22, 23: Write down the systems of differential equations, the initial values, and find the solution.

Exams