There are three groups of people who know the symbol:

	Greek people
	People in sororities and fraternities
	Math geeks

So...  If you aren't in groups    or  ... You KNOW what this means.  It's time you face it.

Our series adds five terms:

Here's the official notation and don't worry -- I'll explain each part:

* Notice that we're using a k instead of the n... 
This is important and will make something easier later.