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RE: [xsl] How to multiply 2 sequences ?
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Subject: RE: [xsl] How to multiply 2 sequences ? From: "Michael Kay" <mike@xxxxxxxxxxxx> Date: Wed, 7 Nov 2007 14:45:27 -0000 |
> It seems that you are trying to obtain the scalar product of
> two vectors:
>
> X = {x1, x2, ... , xn}
>
> Y = {y1, y2, ... , yn}
>
> X.Y = x1.y1 + x2.y2 + ... + xn.yn
>
If that is indeed the requirement (and I wasn't able to work it out from the
posting) then it can be done in XPath 2.0 (without any help from FXSL) as
sum(for $i in 1 to count($x) return $x[$i] * $y[$i])
Michael Kay
http://www.saxonica.com/
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