IN the report (August 30) of the discussion on the use and notation of vector analysis at the British Association is stated that I “deplored the substitution of vectors for quaternions.” The statement ...

This article was taken from the February 2012 issue of Wired magazine. Be the first to read Wired's articles in print before they're posted online, and get your hands on loads of additional content by ...

When you're working in three dimensions, the only way to prove that three points are in a line (collinear) involves showing that a common direction exists. For this, you need to use vectors. Here's ...