Subject: Re: [xsl] XPath 1.0: sum() and precision From: Ihe Onwuka <ihe.onwuka@xxxxxxxxxxxxxx> Date: Thu, 27 Sep 2012 18:38:09 +0100 |
Does this help http://flylib.com/books/en/2.765.1.41/1/ Recipe 3.2 XSLT cookbook On Thu, Sep 27, 2012 at 6:32 PM, Florent Georges <lists@xxxxxxxxxxxx> wrote: > Hi, > > I have a question about sum() and precision in XPath 1.0. > Let's say I have the following XML document: > > <numbers> > <num>75</num> > <num>356.98</num> > <num>2052.51</num> > </numbers> > > The expression "sum(/numbers/num)" returns something like > 2484.490000000000000002 (and not 2484.49) because numbers are > turned into xs:double instead of xs:decimal, and some precision > is lost during floating-point computation. In XPath 2.0, it's > easy, I can just use instead "sum(/numbers/num/xs:decimal(.))", > but this is not XPath 1.0. > > What can I use in XPath 1.0 (so only XPath, and only 1.0) in > order to get 2484.49? > > Regards, > > -- > Florent Georges > http://fgeorges.org/ > http://h2oconsulting.be/
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