From: Isak Johnsson <isak@...>
Date: 2002-11-22T19:05:47+09:00
Subject: Re: Ruby is too slow

> hmmm.
> Actually, I tried replacing the iterator with a while loop.
> i = 0
> while i < size
>     image[i] = lookup[image[i]]
>     i += 1
> end
> 
> The while loop version was slower yet.
> A function call to index an array?  Yikes!  Well, that might explain it.

I've read that using the Array's at function is faster than operator [] 
because it doesn't support ranges.

image.at(i) = ...

Isak