http://www.math.ucsd.edu/~jlebl/20d-f10/

**Main lecture B00:** MWF 11:00am - 11:50am, Center Hall 115

http://groups.google.com/group/ucsd-math-20d-lebl

Subscribe to this list! This list is both for announcements and general class discussion. Please feel free to discuss homework, ask questions, post suggestions, etc...

See the homework page for homework assignments.

Study guide for exam 1

Exam 1 solutions

Study guide for exam 2

Exam 2 solutions

The standard textbook for the class is
*Elementary Differential Equations and Boundary Value Problems*
by Boyce and DiPrima (Ninth Edition).
You should have access to this book.

For most (but not all) lectures and most homework problems, I will be using my free textbook which you can download at
http://www.jirka.org/diffyqs/.
Lectures will be done very closely to this book except for series solutions.
There will be up to 3% extra credit for *useful* feedback on this book.

Here is a draft of the Power series chapter that will go into my book within the next few weeks. I may have to catch some of the bugs.

Jiří Lebl

Web: http://www.math.ucsd.edu/~jlebl/

Office: 7151 AP&M

Office hours: MW 1:00pm-2:30pm and at other times by appointment

Office phone: x42644

Email:
jlebl@math.ucsd.edu

B01-B03: Patrick Cesarz

Office: 6446 AP&M

Office hours: Tu 12-2pm in 6446, and Tu 2-4pm in the Matlab room.

Email:
pcesarz@math.ucsd.edu

B04-B06: Janelle Louie

Office: 6432 AP&M

Office hours: M 2-3 in Matlab room, and W 2-4 in APM 6432

Email:
jalouie@math.ucsd.edu

Grades will be based on the percentages below. Curve will be applied if needed.

**Exam 1: Monday, October 25,** 20% of your grade.

**Exam 2: Monday, November 22,** 20% of your grade.

**Final Exam: Tuesday, December 7, 11:30am - 2:29pm,** 40% of your grade.

**Homework:** Assigned weekly (some weeks may be skipped). Worth
10%, possibly spot checked (*spot checked* means: some spot(s) of each
homework checked, and all will be collected). Lowest homework grade dropped.

**Matlab Assignments/Quiz:** See http://www.math.ucsd.edu/~math20d/.
Worth 10%. There are 4 assignments worth 1% each and a quiz worth 6%.
**The quiz is on November 30th**, see the page above, specifically
here.

**Test Policies:** No books, notes, calculators or computers allowed on
the exams or the final.

Chapters from my book are marked with L, chapters from Boyce and DiPrima are marked with BD. This is very approximate and we will not cover everything in every chapter.

Introduction (1 hour) *[L chapter 0 (0.2), BD chapter 1]*

First order ODEs (5 lectures) *[L chapter 1 (1.1,1.2,1.3,1.4,1.6), BD chapter 2]*

Second order linear ODEs (7 lectures) *[L chapter 2 (2.1,2.2,2.3,2.4,2.5), BD chapter 3]*

Systems of ODEs (7 lectures) *[L chapter 3 (3.1,3.2,3.3,3.4,3.5,only multiplicity 2 defect 1 from 3.7,3.8 covered lightly, only undetermined coefficients from 3.9), BD chapter 7]*

Power series (2 lectures) *[BD chapter 5]*

Laplace transform (4 lectures) *[L chapter 6 (6.1,6.2,6.3?), BD chapter 6]*