Mathematics 285

285 DIFFEREN EQUATIONS (3) 3 credits

Instructor     Course Section               Time
------------------------------------------------------------------------
Eric Olson     1004 Math 285 DIFFEREN EQUATIONS    MW 2:30-3:45pm AB101

Course Information

Instructor:: Eric Olson
email:: ejolson at unr edu; Please put the number 285 in the subject line.
Office:: Monday and Wednesday 1pm DMS 238 and by appointment.
Homepage:: http://fractal.math.unr.edu/~ejolson/285/
Required Texts:: An Introduction to Ordinary Differential Equations by James C. Robinson, Cambridge University Press, 2004.

Announcements

[16-Dec-2015] Solution Key for Homework 4

I have put together a solution key for Homework 4 in case you are interested in comparing your answers with mine. This key also contains a solution to Extra Credit 3.

[02-Dec-2015] Review For Final Exam

I have put together a review sheet to help study for the final exam on December 16 at 12:30pm. Note that the first page of the exam will be a table of Laplace transforms that you may detach and use. There is now an answer key available. Please let me know if you find any errors.

[25-Nov-2015] Maple Worksheet from Class

Here is a copy of the Maple worksheet I made in class when solving problem 6.2#9 from the handout. If you have Maple installed on your computer you may also download the interactive Maple worksheet.

[18-Nov-2015] Handout on Laplace Transforms

There is a handout on Laplace transforms.

[25-Nov-2015] Homework 4 Due

Homework 4 covers numerical techniques for the solution of ordinary differential equations. Please include any Matlab or other computer codes with your work.

[09-Nov-2015] Review for Quiz 3

I have put together a review sheet on Euler's method to help study for the quiz on Monday. Please let me know if you find any errors.

[04-Nov-2015] Runge-Kutta RK4 Method

We wrote this Matlab script in class to approximate the solution of a first order ordinary differential equation initial value problem using the RK4 method. The results can be compared to Euler's Method for the same initial value problem.

[28-Oct-2015] Euler's Method in Matlab

We wrote this Matlab script in class to approximate the solution of a first order ordinary differential equation initial value problem using Euler's method.

[26-Oct-2015] Review for Midterm

The midterm will be given in class on Monday. I have made a review sheet to help you study. You may also wish to review my solutions to Quiz 1. There is also a selection of additional practice problems from a different textbook.

[12-Oct-2015] Problem 14.3

Here is a copy of the Maple worksheet I demonstrated in class for finding x_p in Problem 14.3. If you have Maple installed on your computer you may also download the interactive Maple worksheet.

[30-Sep-2015] Review for Quiz 1

Quiz 1 will be given in class on Wednesday. I have made a review sheet to help you study. There is also an solution key to the review. Please let me know if you find any errors in my solutions.

[24-Aug-2015] Reading

Please read the texbook starting with Chapter 1 and continuing until the end of Chapter 4.

Calendar

Week
 1   Chapters 1 through 5
 2   Chapters 6 and 7
 3   (Labor Day) Chapter 8
 4   Chapters 9 and 10
 5   Chapters 10, 11, 12
 6   Quiz 1
 7   Chapters 13
 8   Chapters 14 and 15
 9   Chapters 17 Review
10   Midterm and Chapter 21
11   Chapter 22 and 23
12   Quiz 2 (Veterans Day)
13   Chapters 25, 26 and 27
14   Chapters 28 and 29
15   Chapters 30 and 31
16   Review (Prep Day)
17   Final Exam

Homework

HW 1:

Due September 9

Problems 1.3, 1.5, 3.1, 5.1, 5.4, 5.6, 5.7

Extra Credit 1:

Problems 6.2, 6.3, 6.4

HW 2:

Due September 30

Problems 7.1, 7.2, 7.3, 7.5, 8.1, 8.2, 8.6, 9.1, 10.1(i),(iii),(iv), 10.2, 10.4, 10.5

HW 3:

Due October 26

Problems 12.1(i),(ii),(iv),(vii),(x),(xii),(xv), 13.1, 13.2, 13.3, 13.7, 14.1(i),(ii),(iv),(v), 15.1

Extra Credit 2:

Problem 15.4

HW 4:

Due November 25

Questions are on this handout.

HW 5:

Due December 16 at Final Exam

Textbook Problems

17.1, 17.3

Laplace Transform Handout

6.1 pg 231 # 4a, 6b, 7a

6.2 pg 239 # 3, 5, 14

6.3 pg 246-247 # 1b, 2a, 3a,c, 4a,b,c

6.3.1 pg 252 # 1, 3

Grading

     2 Quizzes                 20 points each
     1 Midterm                 80 points
     1 Final Exam             100 points
     5 Homework Assignments    10 points each
    ------------------------------------------
                              270 points total

This is an upper-division mathematics class class.  Exams and quizzes 
will be interpreted according to the following grading scale:

    Grade        Minimum Percentage
      A                 85 %
      B                 70 %
      C                 60 %
      D                 50 %

The instructor reserves the right to give +/- grades and higher grades
than shown on the scale if he believes they are warranted.

Final Exam

The final exam will be held on Wednesday, December 16 from 12:30pm to 2:30pm in AB101.

Equal Opportunity Statement

The Mathematics Department is committed to equal opportunity in education for all students, including those with documented physical disabilities or documented learning disabilities. University policy states that it is the responsibility of students with documented disabilities to contact instructors during the first week of each semester to discuss appropriate accommodations to ensure equity in grading, classroom experiences and outside assignments.

Academic Conduct

Bring your student identification to all exams. Work independently on all exams and quizzes. Behaviors inappropriate to test taking may disturb other students and will be considered cheating. Don't talk or pass notes with other students during an exam. Don't read notes or books while taking exams given in the classroom. Homework may be discussed freely. If you are unclear as to what constitutes cheating, please consult with me.

Last Updated: Mon Jun 29 15:21:35 PDT 2015