**Instructor:**- M. Randall Holmes.
**Office number:**- MG240A
**Office telephone:**- 426-3011.
**Office hours:**- TBA, and see ``open office policy'' below.
**Home telephone:**- 345-2899 (please do not use after 8:30 pm or between 6 pm
Friday and noon Sunday).

**Internet:**- E-mail
`holmes@math.boisestate.edu`

Web pagehttp://math.boisestate.edu/~holmes

This syllabus and other course information will be accessible from my web page.

**Please note that the web version of the syllabus and class schedule is the official syllabus and class schedule for the course, and changes will be made there rather than being distributed on paper.** **Title of Course:**- Math 333: Differential Equations. This is section 004.
**Schedule:**- We meet 2:40 to 3:30 pm each day except Thursday in MG 108.
**Final exam date and time:**- Monday, Dec 15, 3:30--5:30 pm, in MG108.
**Textbook:***Differential equations with boundary value problems*, Polking, Boggess and Arnold. This book was used in the spring semester, so there should be used copies..**Prerequisites:**- The prerequisite for this course is completion
of Math 175 (Calculus II) with a C or better, or the equivalent in
transferred credit. Students who do not meet the prerequisites will
be administratively withdrawn if this comes to my attention: no
exceptions will be made.
**Calculators:**- The following is the usual statement I make about
calculators in calculus and pre-calculus classes; I haven't really
thought about calculator use in this class, so I'm leaving the
statement in its usual form:
You are expected to have a graphing calculator in this class. You will sometimes be permitted to use a graphing calculator on exams and sometimes not, so you also need to have a plain scientific calculator without graphing or symbolic calculation capabilities.

The use of Maple is strongly recommended in this course; Maple 9 (the latest version) is recommended, but Maple 7 or 8 should also work. Maple is installed on the machines in the MG104 lab, for which you need a department account (which will be provided); it is also installed on machines in other labs on campus. You can buy Maple at favorable prices in the bookstore.

**Getting into the Class:**- If you are trying to get into the
class, you should come to class and watch constantly for openings on
the web registration. I will not admit students over the capacity of
the room. If you intend to drop, please do so promptly so that
someone else who is waiting can get in!
**Attendance:**- Attendance will not be formally taken, except for
the first two meetings of the class. Students who do not attend at
least one of the first two meetings are subject to administrative
withdrawal. In general, you are expected to attend this class every
day.
**Homework:**- Homework will be assigned every day, and will
generally be collected at least two class sessions later (not counting
exam dates as class sessions), in order to give you time to ask
questions as needed in class.
I will award thirty percent of the grade on a homework assignment based on the simple fact of handing in your paper; the remaining seventy percent will be determined by your performance on selected even-numbered problems in the assignments. You should ask questions in class about problems you do not understand, whether I mark them or not, and take appropriate advantage of the presence of solutions to odd-numbered exercises in the back of the book.

If I assign Maple labs, they will be equivalent to homework assignments.

**Exams:**- There will be four "hour exams"
(I may allot a second period to some exams) and a final exam in this
course. Class time will not be officially devoted to review for
exams, except that there may (time permitting) be a review day for the
final. Dates for exams are tentatively set at Sept. 12, Oct. 10,
Nov. 7, and Dec. 5 (the last date is firm, as it is the last possible
day on which to give an exam). Exams III and IV might be extended to
two-day exams: in this case exam III will occur on Nov. 5 and 7, and
exam IV will occur on Dec. 3 and 5. If you attend irregularly, it is
your responsibility to keep track of when the exams actually are.
**Late Work and Makeups:**- Makeups for exams will be possible, and
should if possible be arranged in advance of your absence. I disavow
any consistent policy whatever on late homework: homework received on
time will be graded as above and returned as promptly as possible,
while with late homework I may give you the thirty percent credit and
hand it back unmarked, grade the paper normally, or grade it with a
penalty, at my sole discretion, and I will attend to it when I have
time. Papers handed in late due to participation in official
university activities will be graded normally (following university
policy).
**Computation of Grades:**- Exams will usually be scaled linearly
so that the median class grade is 75%, then graded with 90's = A,
80's = B, 70's = C, 60's = D, etc. I may change the scaling if I am
displeased with the class performance (though this seldom happens); I
will never scale grades downward.
Your total homework grade has the same weight as an hour exam; your final exam will have the weight of two hour exams. Your lowest hour exam grade (or your homework grade if it is lowest) may be replaced by your grade on the final exam if this helps you. Your course grade will be the sum of your hour exam grades and your homework grade (the lowest of these four grades being replaced by the final exam grade if this helps) plus twice the final exam grade, divided by six.

**Open Office Policy:**- My office hours for these classes are
to be announced. I will almost always be in my office at the
officially scheduled times, and I will try to warn you when I will not
be. If I am in my office during a posted office hour, I am available
to help you.
Don't assume that these are the only times when you can get help! I am generally in my office most of the working day and I am never offended by a student asking me for help if I am in the office (though I may help only briefly if I am

*very*busy). My other class meets 7:40 am -- 9:30 am MW and 8:40 am -- 9:30 am F. I will give information about times when I am likely to be in the office when this is clearer. **Academic Honesty:**- Collaboration on homework is expected and
even encouraged in this class. This does not mean
*copying*of homework. Collaboration on exams is of course not allowed. The penalty for cheating (defined as looking at another student's paper or unauthorized use of books or notes during an exam) will be a grade of zero (0) on the relevant exam. A repeat offense will mean an F in the course. **Courtesy Issues:**-
Cellular phones must be turned off during class. If there is a good reason that you must await a
phone call during class, please inform me in advance and minimize the disruption by sitting near
an exit.
You do not need to contact me if you are missing class or if you need to arrive late or leave early; but I do need you to enter or leave the class quietly in either case. Of course, you do need to contact me,

**preferably in advance**, if you are missing an exam. **Definitions:**- The word ``yesterday'' is defined to mean the previous
class session; the word ``tomorrow'' is defined to mean the next class session,
unless I specifically say otherwise :-)