The Homepage of

     Math 251 Sections 7, 8, 9, and 12     

     Fall Semester, 2013      

 

 
 

 
Instructor

Zachary S. Tseng
410 McAllister Building
(814) 865-1401
tseng@math.psu.edu

Mailbox: 109 McAllister

Office Hours:

Monday: 5:50 to 6:40 PM, Wednesday: 12:20 - 1:10 PM

 
Quiz/Homework grader:   Mimi Overbaugh         mmo5106@psu.edu

 
Class times and locations:

 
MATH 251.7
M WRF 01:25PM - 02:15PM  123 E E East
 
MATH 251.8
M WRF 02:30PM - 03:20PM  123 E E East 
 
MATH 251.9
M WRF 04:40PM - 05:30PM  123 E E East
 
MATH 251.12
M WRF 03:35P - 04:25P  123 E E East 


 
 

ANNOUNCEMENT

General: A public service announcement... Here is the Homework and Quiz Submission Guideline. Please read the rules carefully and follow them when submitting your assignments (as well as during an exam).

Another PSA: The Penn State Learning offers free peer tutoring (walk-in, no appointment is required). It is a great resource if you ever need help for the course but are unable to make my office hours. Check out their website for hours and locations: Penn State Learning - free on-campus peer tutoring

8-26-2013: Assignment #1 will be given in class on Friday, August 30. It is due at the beginning of the class on Thursday, September 5.

The first 2 sets of lecture notes + a review (reprints of my transparencies):
Intro. and part 1 of Chapter 2
The rest of Chapter 2 lecture notes on first order differential equations
Review of Partial Differentiation

In-class worksheet set 1
This is the first set of in-class worksheet. It is basically your ready-made class notes. In addition to giving you something to do while in class, it also serve as a lecture outline, a source of extra examples and exercises, and an exam study guide (generally it is a safe bet that items/concepts/formulas appearing on the worksheet are, somewhat, more important than those only appear in the online lecture notes but not on the worksheet).

The class Facebook group: for class and homework online technical support and general discussions of anything related to the course.

Assignment #2 will be given in class on Friday, September 6. It is due at the beginning of the class on Thursday, September 12.

Assignment #3 will be given in class on Friday, September 13. It is due at the beginning of the class on Thursday, September 19.

8-29-2013: If you are looking for a cheap refernce book, here is a free download version of a different textbook, previously published by Brooks/Cole Thomson Learning, 2000. It is made available by courtesy of its author, Dr. William Trench, Professor Emeritus of Trinity University.
ELEMENTARY DIFFERENTIAL EQUATIONS WITH BOUNDARY VALUE PROBLEMS by William F. Trench
and its Student Solutions Manual

9-9-2013: Assignment #4 will be given in class on Friday, September 20. It is due at the beginning of the class on Thursday, September 26.

Assignment #5 will be given in class on Friday, September 27. It is due at the beginning of the class on Thursday, October 3.

In-class worksheet set 2 - the second set of the in-class worksheet, covering sections 3.1 through 4.2.

Lecture notes for Chapter 3:
Second Order Linear Equations, Part 1 - homogeneous equations
Second Order Linear Equations, Part 2 - Nonhomogeneous Linear Equations
Mechanical Vibrations

9-16-2013: If you have a scheduling conflict for midterm exam 1 (Thursday, Oct 10, from 6:30 to 7:45 pm) and need to arrange to take either the conflict exam (same day as the regular exam, but from 5:05 to 6:20pm), or the make-up exam (on Wednesday, October 16, from 6:30 to 7:45pm), please come to see me before or after class.

9-30-2013: Assignment #6 (exam I review, you can start on it now): Due at the beginning of the class on Thursday, October 10. Do the following:
Sample exam from Spring 2010 (answer key available) and Summer 2012:
Exam I, Spring 2010    answer key
Exam I, Summer 2012    answer key
Do all necessary steps for the partial-credit problems, show all work or sufficient reasoning to justify your answers to the multiple-choice / matching / true-or-false / short-answer questions.

Other recommended sample exams: Fall 2012, Spring 2012, Fall 2011, Summer 2011, Spring 2011, Fall 2010, Spring 2009.

Assignment #7 will be given in class on Friday, October 11. It is due at the beginning of the class on Thursday, October 17. Assignment #8 will be given in class on Friday, October 18. It is due at the beginning of the class on Thursday, October 24.

The Penn State Learning (the folks at 007 Sparks) will be holding a Math 251 exam review session, lead by student peer tutors, on Sunday, October 6, from 6:00 to 9:00pm in room 111 Chambers.

Chapter 4 notes: Higher Order Linear Equations

10-2-2013: Midterm Exam I study guide

Notes, worksheet, and more, on Laplace Transforms (Chapter 6):
In-class worksheet set 3 - covering Laplace transforms, sections 6.1 through 6.5.
Laplace Transforms, part 1
Laplace Transforms, part 2
Laplace Transforms, part 3
Partial fractions review notes
Table of basic Laplace Transforms

10-8-2013: Conflict midterm exam I location change:
Due to the high volume of students signed up for the conflict exam for Math 251. An additional room is required. Students in our sections (7, 8, 9, and 12; as well as section 10) should be reporting to 360 Willard instead on 10/10/13 from 5:05 to 6:20 pm for the conflict exam.

10-14-2013: Assignment #9 will be given in class on Friday, October 25. It is due at the beginning of the class on Thursday, October 31. Assignment #10 will be given in class on Friday, November 1. It is due at the beginning of the class on Thursday, November 7.

10-21-2013: If you have a scheduling conflict for midterm exam 2 (Tuesday, November 12, from 6:30 to 7:45 pm) and need to arrange to take either the conflict exam (same day as the regular exam, but from 5:05 to 6:20pm), or the make-up exam (on Wednesday, November 20 from 6:30 to 7:45pm), please come to see me before or after class. However, please be advised, in case you need to sign up for the make-up exam, that the make-up exam will be held AFTER the late-drop deadline (which is Friday, November 15), please consider this fact as it might affect your decision regarding signing up to take the make-up exam.

10-23-2013: Here is an experimental how-to guide of using the second translation theorem of Laplace transforms, that I mentioned in a couple of my sections, using examples with color-coded parts. (It works better if you print it out in colors.)

Notes, worksheet, and a reference chart, on chapters 7 and 9, they cover the rest of the topics that are going to be on the second midterm exam:

In-class worksheet set 4 - covering systems of differential equations, and phase portraits (Chapters 7 and 9).
Systems of First Order Linear Equations
Phase portraits; Nonlinear Systems
Predator-prey Equations
Phase portrait reference chart

11-3-2013: Midterm Exam II study guide

Here is a set of exam II review formula sheets made by a fellow student back in 2011. I include it here because it might proved to be helpful to you as well. Note that it includes mechanical vibrations and higher-order linear equations, which will not be on the second exam (the first exam covered those topics)

Assignment #11 (exam II review, you can start on it now): Due at the beginning of the class on Thursday, November 14. Do the following:
Sample exam from Summer 2011 and Fall 2012 (answer keys are available):
Exam II, Summer 2011    answer key
Exam II, Fall 2012    answer key
Do all necessary steps for the partial-credit problems, show all work or sufficient reasoning to justify your answers to the multiple-choice / matching / true-or-false / short-answer questions.

Also recommended: Sample exams from Spring 2013, Summer 2012, Spring 2012, Fall 2011, Spring 2011, Fall 2010, Spring 2009, Fall 2008.

Assignment #12 will be given in class on Friday, November 15. It is due at the beginning of the class on Thursday, November 21.

11-4-2013: Notes and worksheet on Chapter 10 - Partial Differential Equations:
In-class worksheet set 5 (chapter 10) - partial differential equations
Part 1 (10.1 and 10.5) - introduction, separation of variables, 2-point boundary value problems, eigenvalues and eigenfunctions
Part 2 (Fourier Series: 10.2, 10.3, and 10.4) - Fourier series, Fourier convergence theorem, even and odd periodic functions
Fourier Series summary (the bare minimum version of part 2 above)
Summary sheet of common simple 2-point BVPs
Part 3 (10.6 + summaries) - heat conduction problems, nonhomogeneous boundary conditions, steady-state solution
Part 4 (10.7 and 10.8, plus incomplete optional topics section) - wave equations, Laplace/potential equation

11-8-2013: The Penn State Learning will be holding a Math 251 exam review session, lead by student peer tutors, on Sunday, November 10, from 6:00 to 9:00pm in room 010 Sparks.

Assignment #13 will be given in class on Friday, November 22. It is due at the beginning of the class on Thursday, December 5.

12-9-2013: Final Exam study guide

12-11-2013: The Penn State Learning will be holding a Math 251 final exam review session, lead by student peer tutors, on Friday, December 13, from 5:00-6:30pm in 100 Life Sciences Bldg.

 


 
 
Math 251 Information

Course syllabus

Sample Exams

Additional Sample Exams (Math 250)

Penn State Learning - free on-campus peer tutoring

 

Upcoming Events
 
 
Final Exam

Date: Thursday, December 19

Time: 6:50 to 8:40 PM

Location: 100 Thomas

Format: A mixture of multiple-choice, short-answer, true-or-false, and partial-credit questions, for 150 points

 
Calculators are NOT allowed during the exam.

Grading Policy

Total of 450 points:

100 pts - Midterm I
100 pts - Midterm II
150 pts - Final Exam
100 pts - Quizzes/Homework

 
READ! Eberly College of Science's statement/policy regarding Academic Integrity

 

MATH 250/251 Resource

Tools and info for and about differential equations.

 

Calculus Reference Resource

 
 

Useful Links

Some Math resource on the web:

 


Send any question/comment about this page to: tseng@math.psu.edu

Last modified: December 11, 2013