math.exp (x) Returns the value ex (where e is the base of natural logarithms).

lua_iscfunction[-0, +0, –] int lua_iscfunction (lua_State *L, int index); Returns 1 if the value at the

lua_settop[-?, +?, –] void lua_settop (lua_State *L, int index); Accepts any index, or 0, and sets the

xpcall (f, msgh [, arg1, ···]) This function is similar to pcall, except

luaL_openlibs[-0, +0, e] void luaL_openlibs (lua_State *L); Opens all standard Lua libraries into

setmetatable (table, metatable) Sets the metatable for the given table. (To change the metatable of other types from Lua code, you must use the debug library (

debug.getupvalue (f, up) This function returns the name and the value of the upvalue with index up of the function f. The function returns nil

lua_newthread[-0, +1, m] lua_State *lua_newthread (lua_State *L); Creates a new thread, pushes

lua_pushlightuserdata[-0, +1, –] void lua_pushlightuserdata (lua_State *L, void *p); Pushes a light userdata

luaL_loadstring[-0, +1, –] int luaL_loadstring (lua_State *L, const char *s); Loads a string as a Lua chunk