From Elendor
Several major variants of functions are available. The help topics
are listed below, together with a quick summary of the function type
and some examples of that type of function.
Attribute functions: attribute-related manipulations (GET, UFUN)
Boolean functions: produce 0 or 1 (false or true) answers (OR, AND)
Dbref functions: return dbref info related to objects (LOC, LEXITS)
Floating point functions: floating point math (SIN, ROUND)
Information functions: find out something about objects (FLAGS, MONEY)
List functions: manipulate lists (REVWORDS, FIRST)
Math functions: number manipulation, generic or integers only (ADD, DIV)
String functions: string manipulation (ESCAPE, FLIP)
Utility functions: general utilities (TIME, COMP)
The command "@config/functions" lists all of the game's built-in functions.
The command "@function" lists all of the game's global functions.