Functions with varying amounts of arguments?

[Tesselode]

Is there a way to make a function have a varying number of arguments (like some of the love.graphics functions)?

[The Burrito]

I just put optional arguments at the end, and check if nil before doing anything with them. Not sure if theres an easy way to do more complex things like various numbers of coordinate pairs or something.

[vrld]

Programming in Lua: 5.2 - Variable Number of Arguments