What I really like is writing generic min/max routines that handle more than two variables. They show the beauty of recursive functions, even though Perl doesn't handle tail-recursion

^{1}.

Iterative:

`sub max {
my ($max, @vars) = @_;
for (@vars) {
$max = $_ if $_ > $max;
}
return $max;
}
`

Recursive:

`sub max {
my ($max, $next, @vars) = @_;
return $max if not $next;
return max( $max > $next ? $max : $next, @vars );
}
`

Interestingly enough, though this example works well in several languages, Perl's iterative version is remarkably short; I've never noticed this before. I guess I just proved myself wrong.

^{1}Okay, so this isn't strictly true. Using a magic goto with the

`&` sigil and

`@_`, you can fake it. But it's not very pretty.

**Update:** Fixed my mistake. Thanks, pg. (I always want to use postmodifier if and for in the same statement.)
**Update:** Okay, so I should test my code before I post. Or find where I left my brain. Snippet 2 is fixed.

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