Sorry :-p /p/3vp seemed too general a name for me back when I was first writing this, though I think /p/3vp is probably actually just fine. I suggest you merge the two and do what you want with them. (Right now I like my intro better than yours, but I might be biased :-p)
Oog, I wrote a page about functions at /p/3vp because it didn't occur to me that this page would be named differently...
Sorry :-p /p/3vp seemed too general a name for me back when I was first writing this, though I think /p/3vp is probably actually just fine. I suggest you merge the two and do what you want with them. (Right now I like my intro better than yours, but I might be biased :-p)