On Jan 18, 2007, at 4:24 PM, Michael Guterl wrote:

>> I wrote mine a bit different:
>>
>>    def prime(n)
>>      return false if n > 2 and n % 2 == 0
>>      max = sqrt(n)
>>      3.upto(max) do |i|
>>        return false if i % 2 != 0 and n % i == 0
>>      end
>>      return true
>>    end
>>
>>    optimize :prime
>
>
> Where does this call to optimize come from?

 From my fingers? I think what you mean to ask is where is optimize.  
It is provided by my package ZenHacks in a not terribly usable form.

> Am I the only one feeling like they're missing out on something
> interesting?

Yes, everyone else went to rubyconf 2005 and saw it on their own. :P