*Mathematica *and *Presentations*

See the Textbook page for detailed information about the *Mathematica *software and the *Presentations *add-on package for *Mathematica *that you will be required to use.

### Instructor-provided *Mathematica *files

On the Files page I will provide *Mathematica *notebook files for you to download and use with *Mathematica*.

*WeBWorK *on-line homework system

For some homework assignments you will use the free *WeBWorK *on-line homework system.

The URL for *WeBWorK *for our class is:

`http://webwork.math.umass.edu/webwork2/MATH_421_F10`

Or click the link for Math 421 on the generic UMass URL for *WeBWorK:*

`http://webwork.math.umass.edu/webwork2`

*WeBWorK *login:

*Username:*part of e-mail address before @*Password:*initially, your UMass student ID number

(change it as soon as you log on!)

For example, if your official UMass e-mail address is `xyersel@student.umass.edu`

, then your *Username *would be `xyersel`

.

For additional help in using *WeBWorK*, see: