From: Jeremy Woertink <jeremywoertink@...>
Date: 2010-05-04T08:15:35+09:00
Subject: Re: Teaching Programming Languages (including Ruby)

Not that it matters, but I was curious as to why the doors examples are 
different.

For example, the ruby example could be written:

for i in (1..100) do
  root = Math.sqrt(i)
  state = (root == root.ceil) ? "open" : "closed"
   puts "Door #{i}: #{state}"
end

which would closer match the PHP one:

<?php
for ($i = 1; $i <= 100; $i++) {
    $root = sqrt($i);
    $state = ($root == ceil($root)) ? "open" : "closed";
    echo "Door $i: $state";
}
?>

I just think having a side by side comparison of closer related methods 
might help.
Good luck with the project! I'll probably use it if you throw 
Objective-C or Lua on there :) I really want to learn those two, and the 
resources I have found aren't that great.


~Jeremy
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