API floor
From WoWWiki
"floor" is a shortcut for the standard Lua library function "math.floor". They can both be used interchangeably.
Usage
val = floor(value);
Description
floor(value) returns the floor of the value (essentially it returns the whole part of the value) i.e. rounds value down
Example
> local x = floor(10.9); > = x 10
-- Rounding using floor() > local x = floor(value + .5)
This is a Lua function and documented as part of the World of Warcraft API
