Math 2240 (Section 101) Homepage
News & Announcements
12/18 Final grades have been posted.
The final exam average was 75% after
a 9 point curve.
12/09 Final Exam Week(s) Office Hours:
12-10-2008 Wednesday 9am-12pm, 2pm-4pm
12-11-2008 Thursday None
12-12-2008 Friday 12pm-3pm
12-15-2008 Monday 10am-12pm
12-16-2008 Tuesday 10am-12pm, 2pm-4pm
12-17-2008 Wednesday 12pm-3pm
12/05 Final Exam Review Sheet
12/04 Review Session: Monday, December 15th, 12:00pm until we're
sick of reviewing linear algebra in room 310.
Final Exam: Wednesday, December 17th, 3:00pm - 5:30pm in
PC Lab 307B.
12/01 Grading projects today? FAIL
Writing answer key? SUCCEED
Project #5 Answers
11/25 Quiz #7 grades are posted.
Project #5 grades...after break...sorry.
Have a happy Thanksgiving!
11/21 Friday -- OFFICE HOURS CANCELLED
Eigenhandout 2.0
(I fixed several typos and added a corollary.)
11/18 Project #5 is posted!
Project #5 is due next Tuesday by noon.
Eigenvector Handout
Grades have been posted. I curved 10 points.
The average (after the curve) is 76%.
You can find the test answer key here.
11/17 Grading almost done...Answer key is
finished...Everything should be posted
by noon tomorrow.
11/14 Thanks to Elizabeth Kehler for finding
(hopefully the last) typo:
On the first page when writing down
coordinates for a vector I wrote "3/5"
instead of "23/5" -- "23/5" appears
everywhere else except for this one
instance.
11/12 Ahh! Mistakes...on Kernel, Range, and Composition.
I reposted the .pdf -- it's correct now...if I did find
all of the errors...maybe I should say,
"It's more correct-ish than it was before."
Although I don't think that's very good English.
Bad Mistake I.
:( :( :( :( :( :( :( :( :( :( :( :( :( :(
"c" and "a" should be interchanged in the
definition of S!
T(at^2+bt+c) = ...
==> should be ==>
T(ct^2+bt+a) = ...
And again when discussing the composition...
(T circle S)(at^2+bt+c) = T(S(at^2+bt+c) = ...
==> should be ==>
(T circle S)(ct^2+bt+a) = T(S(ct^2+bt+a) = ...
Not So Bad Mistake II.
:( :( :( :( :( :( :( :( :( :( :( :( :( :(
Also, there is a typo at the botton of the
same page:
1e_1-1e_2 = (0,-1)
==> should be ==>
0e_1-1e_2 = (0,-1)
SORRY!
11/11 Another extended example:
I compute coordinate matrices for two linear transformations
and their composition. Then using the matrix representations
of these linear maps, I find bases for each kernel and range.
11/10 Test #3 is this Friday. It will be held in
PC computer lab 303B.
Coordinates and Matrices: An Example
11/07 Project #4 Answer Key
(I omitted answers to the Maple problems.)
11/03 Example 4.8 #43 (.mw) (Conic Section Rotation Problem)
10/30 WARNING -- In problem I. from Project #4 problems
#28 and #30 should be #38 and #40.
10/28 Test #2 and its answer key can be found here.
Grades posted too.
10/27 Project #4 has been posted!
It's due next Monday (November 3rd)
10/22 Test #2 is this Friday. We will meet in lab 307B.
If you've noticed, the schedule says a project is
due Monday, this is not the case. It will most
likely be due Wed. or Fri. next week. I will post
it (hopefully) this afternoon.
10/09 As requested, Project #3 Answers.
09/30 Project #3 posted!
09/23 Test #1 and its answer key can be found here.
09/22 Test #1 scores have been posted.
Since the test was too long, I decided to curve
the test 15 points -- essentially I counted one
of the problems as extra credit.
09/18 You can find a Bryson Stalnaker's excellent solution of the
Ski Jump problem here.
Thank you, Elizabeth, for your plot!
09/17 Project #2 posted!
Project #2 is due next Wednesday.
09/15 Quiz #2 grades have been posted.
I posted a few tips for using Maple on my maple examples page.
Look under the heading "Linear Algebra".
I should have Project #2 posted soon.
We will discuss section 2.5 (applications) on Wednesday
as well as review for Test #1 (which is this Friday).
09/10 Project #1 grades are posted.
We will have Quiz #2 on Monday. Also, we will be meeting
in WA 209B (a computer lab). I plan on discussing how to
make Maple do Linear Algebra -- whether Maple likes it or not!
We will have our first test Friday next week. I have reserved
the computer lab in WA 307B for the exam -- so you can use
Maple during your exam, if you wish.
09/05 I have posted Quiz #1 grades on asULearn.
09/03 No office hours tomorrow (Thursday). Although
I may be in my office some in the afternoon.
09/02 Project #1 posted!
Project #1 is due next Monday.
08/28 Handouts:
Gauss-Jordan Elimintaion the algorithm and some definitions.
The Linear Correspondence between columns of a matrix and its RREF.
Maple adoption program:
We will be using Maple during portions of this
class. Maple is available on all lab computers,
but it might be convenient to have a copy of
your own. So, I have registered our class with
the Maple adoption program. This allows you to
get a student copy of Maple for $75.
You can go here to obtain the promotion code.
08/26 Syllabus and schedule pages have been posted.
The suggested homework page will be posted soon.
Any questions about this class?
Send me an email at cookwj@appstate.edu