I figure i'd post this because forwhatever reason i think a lot of people in this forum could use it (like me). Clicky McClack Its a primer on vector algebra/geometry that is complete with walkthroughs, examples, questions and part by part answers. Click on "Lessons Page" (on the left) -> "Unit 3" to get to the index. I had to take this course and actually relearned everything i already knew, but the right way this time. Cheers [edited by - Mulligan on February 8, 2004 10:53:07 PM]