On 7/3/05, Daniel Nugent <nugend / gmail.com> wrote:

> For one, there's no typo in my original message (I'm copying right out
> of Pickaxe2)

Not to be a pedant, but yes, there was.  Here's your original:

> a = (11..20).collect {|i| (i%4 == 0)..(i%3 == 0) ? i ? nil}

The second "?" should be ":".