Course Guidelines Math
290A
Dr. R. Beezer Spring
2012
Text We will be using A First Course in Linear Algebra, (Version 2.30) by Robert A. Beezer as our textbook. A physical copy of version 2.00 may be purchased from Lulu.com and is not substantially different. Electronic copies of the textbook can be found at the book’s website (linear.pugetsound.edu). These may be updated weekly, usually on Wednesday evenings, but Version 2.30 will be the canonical text for the entire semester.
The Bookstore also has a highly recommended optional text: The Nuts and Bolts of Proofs by Antonella Cupillari (Third Edition). The course WWW page has some recommendations for similar books about proof techniques.
Home Page Start at http://buzzard.ups.edu/courses.html for the course web page.
Office Hours My office is in Thompson 303; the telephone number is 879–3564. Making appointments or simple, nonmathematical questions can be handled via electronic mail — my address is beezer@ups.edu. Office Hours are 10:0010:50 on Monday and Friday, and 9:3011:20 on Tuesday and Thursday. You may make an appointment for other times, or just drop by my office. Office hours are your opportunity to receive extra help or clarification on material from class, or to discuss any other aspect of the course.
Computation Linear algebra is at the heart of many large computations in physics, chemistry, economics, statistics and other disciplines. So it is useful to become familiar with relevant software. Futhermore, freed from doing errorprone numerical computations you can concentrate on new ideas and concepts.
For both reasons, we will make extensive use of Sage. Since Sage is open source software, it is available freely in many places. Your default installation is the oncampus server at sage.pugetsound.edu which will be running the latest version and will remain constant all semester. Availability, version incompatibility or convenience of other sites is not an excuse for not being able to use Sage. There are thorough discussions about Sage, available at the website for your textbook. We will discuss in class the use of Sage during examinations.
Homework There is a nearly complete collection of exercises in the text. Any (or all) of the problems will be good practice as you learn this material. Many of these problems have complete solutions in the text to further aid your understanding. Of course, you are not limited to working just these problems. I expect to be formulating additional exercises for Sage as we go along through the semester.
None of these problems will be collected, but instead they will form the basis for our nearweekly “Problem” sessions and for discussions in office hours. It is your responsibility to be certain that you are learning from these exercises. The best ways to do this are to work the problems diligently as we work through the sections (see attached schedule) and to participate in the classroom discussions. If you are unsure about a problem, then a visit to my office is in order. Making a consistent effort outside of the classroom is the easiest way to do well in this course.
Mathematics not only demands straight thinking, it grants the student the satisfaction
of knowing when he [or she] is thinking straight.
— D. Jackson
Mathematics is not a spectator sport.
— Anonymous
I hear, I forget.
I see, I remember.
I do, I understand.
— Chinese Proverb
An education is not received. It is achieved.
— Anonymous
Exams There will be seven 50minute timed exams — they are all listed on the tentative schedule. The lowest of your seven exam scores will be dropped. The comprehensive final exam will be given on Monday, May 7 at Noon. The final exam cannot be given at any other time and also be aware that I may allow you to work longer on the final exam than just the twohour scheduled block of time. In other words, plan your travel arrangements accordingly.
As a study aid, I have posted copies of old exams on the course web site. These are offered with no guarantees, since techniques, approaches, emphases and even notation will change slightly or radically from semester to semester. Some of the solutions contain mistakes, and some of the problem statements have typos. In other words, they are not officially part of this semester’s course. In particular, I do not advocate working old exams as a primary, or exclusive, technique for learning the material in this course. Use at your own risk: they have not been reviewed for minor mistakes or inconsistencies with this semester’s course.
Writing This course has been designated as part of the University’s Writing in the Major requirement. Thus, there will be two proofs assigned for each chapter. You will be expected to formulate a proof, and write it up clearly. These will be graded on a pass/fail basis. Each chapter’s questions will be returned to you with comments, and if you do not earn a pass, then you can resubmit them the next week. You may resubmit a problem for several consecutive chapters in a row, so long as you make a serious effort each chapter on each outstanding problem. Once you miss submitting a retry, it will be marked as a fail. These will be due the day of the chapter exam, prior to the start of class, sent to the email address announced in class as a PDF file. You will need to use the mathematical typsetting software, LATEX, to create your proofs.
These problems are your own work (i.e. no collaboration on formulating the proof, or writing it), and will not be accepted late.
Reading Questions Each section of the textbook contains reading questions at the end. Once you have read the section prior to our inclass discussion, submit your responses to the reading questions via electronic mail as follows. Do not send your responses to my regular email address (beezer@ups.edu), but instead use the address linearA@beezer.privacyport.com Your responses are due at 6 AM of the day we discuss the section in class, and will not be accepted late, i.e. 6 AM is a firm deadline. Use a subject that is only the acronym for the section. So for example, your first response will be simply titled: WILA. Do not include anything else in the subject line. In the first line of your response, please put your real name, then answer the questions in order. If you are not getting replies from me within 24 hours of submission, something is amiss and we will need to figure out where your responses are going. In particular, notice that the email address does not include the word “report.”
If a question asks for a computation, you can just give the numerical answer, no need to show your work in the email. If the question requests a yes/no answer, or asks “Why?” then give an explanation. Do your best with mathematical notation, but do not fret if it is a bit sloppy or weird, I can usually decipher any reasonable attempt. Please send only straight text — no attachments, no Word files, no graphics, no HTML if you can help it. Please pay careful attention to these procedures and deadlines and we will all be happier.
Grades Grades will be based on the following breakdown: Exams — 55%; Reading Questions — 10%; Writing — 15%; Final — 20%. Homework, attendance and improvement will be considered for borderline grades. Scores will be posted anonymously on the World Wide Web at http://buzzard.ups.edu/courses.html.
Reminders Three reminders about university policies contained in the Academic Handbook. These are described thoroughly online, or a printed copy may be requested from the Registrar’s Office (basement of Jones Hall).
“Regular class attendance is expected of all students. When nonattendance is in the instructors
judgment excessive, the instructor may levy a grade penalty or may direct the Registrar to drop the
student from the course.”
See http://www.pugetsound.edu/studentlife/studentresources/studenthandbook/
academichandbook/registrationforcoursesofin/#Attendance.
Withdrawal grades are often misunderstood. A Withdrawal grade (W) can only be given during the
third through sixth weeks of the semester, after that time (barring unusual circumstances), the
appropriate grade is a Withdrawal Failing (WF), even if your work has been of passing quality. See the
attached schedule for the last day to drop with an automatic ‘W’.
See http://www.pugetsound.edu/studentlife/studentresources/studenthandbook/
academichandbook/gradeinformationandpolicy/#withdrawal.
All of your graded work is expected to be entirely your own work, this means reading questions and
Sage exercises. Anything to the contrary is a violation of the university’s comprehensive policy on
Academic Integrity (cheating and plagiarism). Discovered incidents will be handled strictly, in accordance
with this policy. Penalties can include failing the course and range up to being expelled from the
university.
See http://www.pugetsound.edu/studentlife/studentresources/studenthandbook/
academichandbook/academicintegrity/.
Attendance Daily attendance is required, expected, and overall a pretty good idea.
Purpose This course is much different from most any mathematics course you have had recently, in particular it is much different than calculus courses. We will begin with a simple idea — a linear function — and build up an impressive, beautiful, abstract theory. We will begin computationally, but soon shift to concentrating on theorems and their proofs. By the end of the course you will be at ease reading and understanding complicated proofs. You will also be very good at writing routine proofs and will have begun the process of learning how to create complicated proofs yourself.
You will see this material applied in subsequent courses in mathematics, computer science, chemistry, physics, economics and other disciplines (though we will not have much time for applications this semester). You will gain a “mathematical maturity” that will be helpful as you pursue upperdivision coursework and in any logical, rational, or argumentative activity you might engage in throughout your lifetime. It is not easy material, but your attention and hard work will be amply repaid with an indepth knowledge of some very interesting and fundamental ideas, in addition to beginning to learn to think like a mathematician.
Monday  Tuesday  Thursday  Friday  
Jan 16 MLK Day  Jan 17 Section WILA  Jan 19 Section SSLE  Jan 20 LATEX 

Jan 23 Section RREF  Jan 24 Section TSS  Jan 26 Problem Session  Jan 27 Section HSE 

Jan 30 Section NM  Jan 31 Problem Session  Feb 2 Exam SLE Writing Due  Feb 3 Section VO 

Feb 6 Section LC  Feb 7 Section SS  Feb 9 Section LI  Feb 10 Problem Session 

Feb 13 Section LDS  Feb 14 Section O  Feb 16 Problem Session  Feb 17 Exam V Writing Due 

Feb 20 Section MO  Feb 21 Section MM  Feb 23 Section MISLE  Feb 24 Section MINM 

Feb 27 Problem Session Last day to drop  Feb 28 Section CRS  Mar 1 Section FS  Mar 2 Problem Session 

Mar 5 Exam M Writing Due  Mar 6 Section VS  Mar 8 Section S  Mar 9 Section LISS 

Monday  Tuesday  Thursday  Friday  
Mar 19 Problem Session  Mar 20 Section B  Mar 22 Section D  Mar 23 Section PD 

Mar 26 Problem Session  Mar 27 Exam VS Writing Due  Mar 29 Section DM  Mar 30 Section PDM 

Apr 2 Section EE  Apr 3 Section PEE  Apr 5 Section SD  Apr 6 Problem Session 

Apr 9 Exam D&E Writing Due  Apr 10 Section LT  Apr 12 Section ILT  Apr 13 Section SLT 

Apr 16 Problem Session  Apr 17 Section IVLT  Apr 19 Problem Session  Apr 20 Exam LT Writing Due 

Apr 23 Section VR  Apr 24 Section MR  Apr 26 Section CB  Apr 27 Problem Session 

Apr 30 Exam R Writing Due  May 1 Housekeeping  