This is the location for the listing of all of the Lua based functions, ones that are built into the system. These are not to be confused with defined functions, ones that are made in your own code. These were changed/added to by the original ROBLOX client developers for the base Lua code, and cannot be overwritten or edited.
These are broken up into 5 groups, where you can find more information about what you want to do on each page.
These are what help the Lua code run on GoodBlox. In here you can find listings for file manipulation, metatables, error handling and other basic system functions. If you aren't sure where the function is listed, look here first.
Here is the listing for coroutine manipulation, which allows you to set several things working at once and for a limited time of running. Take a look here and here for more detailed explanations of coroutines.
These functions let you do fancy things with words, such as changing the order of a string, comparing two strings and using the chat commands to do all kinds of fun stuff.
This section tells you how to play around with long lists of things and do fun stuff as well, such as reordering a table, sorting them, and searching for a specific item in a table.
Just as the name implies, this is a listing of all the math functions in GoodBlox Lua. Here you can find a listing of everything from trigonometry to a value so huge it doesn't have a real number.