Here's an interesting one that doesn involve a comparison operator (even an obfuscated one): 
($x + $y + abs($x - $y)) / 2

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The math behind that is: take the average of the two numbers, and then add half their difference (start half-way between, and then go up by half). So: (x+y)/2 + abs(x-y)/2, and then factor out the division by two. 
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:Wq
Not an editor command: Wq

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In reply to Re: Finding the max()/min() by etcshadow
in thread Finding the max()/min() by dragonchild

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