Subject: Re: [xsl] Use pure XPath to test a sequence for being a valid Fibonacci sequence From: Florent Georges <darkman_spam@xxxxxxxx> Date: Wed, 31 Jan 2007 23:34:39 +0100 (CET) |
Abel Braaksma wrote: Hi > Abel Braaksma wrote: > > Michael Kay wrote: > >> $fib[1] = 0 and $fib[2] = 1 and > >> every $i in 2 to count($fib) satisfies > >> $fib[$i] = $fib[$i - 1] + $fib[$i - 2] > Here's another version, which eases the expression a bit > by removing the special cases: > every $i in 1 to count($fib) satisfies > $fib[$i] = (0, $fib)[$i] + (0, 1, $fib)[$i] Personally, I like the first version. The second one is shorter, but the first one as is almost a literal translation from the mathematical definition. But it is a matter of taste, I guess. Regards, --drkm ___________________________________________________________________________ Dicouvrez une nouvelle fagon d'obtenir des riponses ` toutes vos questions ! Profitez des connaissances, des opinions et des expiriences des internautes sur Yahoo! Questions/Riponses http://fr.answers.yahoo.com
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