**Math 233: Elementary Linear Algebra**

**Applets:**

3D vector addition of 4 vectors

2D projectsions, dot products, and cross products

3D linear combinations of vectors

Gram-Schmidt applet for two vectors

Gram-Schmidt video for two vectors

Gram-Schmidt video for three vectors

More applets from Paul Seeburger

More applets & videos from Mathematica

**Office Hours:**

All office hours will be held in my office, 326C South Hall. My office hours are at the following times, and by appointment.

**Office Hours:**

Unless otherwise noted, all office hours will be held in my office, 326C South Hall. My office hours are at the following times:

**Mondays: 7-8pm** in 338 South Hall. This is a problem session specifically for Elementary Linear Algebra students. We will be in a larger classroom in hopes of higher turnout.

**Wednesdays: 3-4pm** in my office (326C South Hall)

**Thursdays: 3-3:30pm** off-topic office hour in my office (326C South Hall). This office hour is specifically for off-topic questions. For example, if you have a question about the Riemann Hypothesis, careers in mathematics, applications of linear algebra, or how a class problem relates to deeper mathematics, this is the time and place.

**Appointments:** If you are not available during my regular office hours and need to schedule an appointment with me outside of class, please first check my schedule on my website. Then e-mail a list of the appointment times you are available so I can schedule a one-time extra office hour (there may be other requests, and I will likely invite the whole class). I expect that you’ve already asked or consulted someone about the problem. The Math Learning Center (see the links, below) is an excellent resource and is available more often than I am. Working with other students challenges your own understanding and can solve minor misunderstandings.

**In office hours,** feel free to drop by and just hang out, though it is best to come
with a list of questions. Its best to use your homework to figure
out what *types* of problems
you have trouble with and to isolate which *part *of
the problems are causing that trouble. When working on your
homework, I recommend (1) writing down the problems you don't
understand, (2) going back and looking for common characteristics of
these problems, (3) grouping them into problem types, (4)
re-attempting the problems with your newfound knowledge, and finally
(5) coming to me with well-thought out questions.

**Syllabus:**

Short version.

Standard version.

**Webwork homework:**

Most homework for this course will be done via the online webwork system. To log on, go to this site and log in with your username and password.

I suggest you do the tutorial first, to understand how to input answers into the system.

**Mycourses:**

E-mailed course announcements and any course documents (e.g. solutions to the midterm exam) will be posted on mycourses.

**Links:**

Math Department Instructional Guides

Download a TI-89 onto your computer

Applications of linear algebra

The $25,000,000,000 Eigenvector: The Linear Algebra Behind Google

Puzzles, Games, Magic, and Math