**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.**