Miles V. Aronnax

Not exclusively for physics students, but it was created with me and my ilk in mind. The primer is a Maple document (also available as a PDF), which shows how to use the simple functions in Maple that most physics students would need.

If you'd prefer Ross L. Spencer's Maple for Physics Students: Complete Set of Lessons, you can download that from Maplesoft.com's site.

If you are some sort of lunatic who prefers Mathematica, I don't have a primer for you, but you can download the workbooks from Robert Zimmerman & Fredrick Olness's Mathematica for Physics (click the "Individual Files" link). I would caution that these workbooks would probably be more understandable with the accompanying text (ISBN-13: 978-0805387001).