RE: Computational complexity of accessing the Nth item
> probably not a direct reference, but by calling a function myLast() > that returns > $sequence[last] > > I want this to be calculated only once. My question was will it be > successful to use the > > saxon:memo-function="yes" attribute > > on the definition of myLast() I suspect that's not a good idea. Evaluating $seq[last] is probably much faster than calculating the hash key to discover that the result is already stored. Memo functions work best when the arguments are small. As always, though, the only definitive answer is to measure it. Michael Kay http://www.saxonica.com/
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