An exceptional tutorial on the topic of vectors that offers many helpful graphics, some of which are interactive.

Illustrates and describes how to add two vectors graphically.

This website, from the University of Edinburgh, provides a lengthy glossary of computer graphics terms written by Olin Lathrop, author of "The Way Computer Graphics Work". This site provides simple definitions of basic terms; no graphics...

[Free Registration/Login may be required to access all resource tools.] Understand vector subtraction v - w as v + (-w), where -w is the additive inverse of w, with the same magnitude as w and pointing in the opposite direction....

[Free Registration/Login Required] Follow the path depicted on the map then try to convert the series of six steps to a set of written directions.