Subject: RE: [xsl] Rounding errors in financial app transforms From: "Michael Kay" <mike@xxxxxxxxxxxx> Date: Thu, 26 Jul 2007 13:56:09 +0100 |
> What's the recommended recipe to avoid rounding-error > discrepancies in financial applications based upon XSLT (2.0) > transforms? Use xs:decimal arithmetic. If you use a schema-aware transformation, with a schema that defines the relevant input fields as xs:decimal, then this will tend to happen automatically. If you use a non-schema-aware transformation, or if the input contains data that isn't validated or isn't validated as xs:decimal, then you can achieve the same effect "by hand", for example by writing sum(product/sales-value/xs:decimal(.)) Be aware that there can be a performance hit in using xs:decimal compared to xs:double, it shouldn't be done unless you actually need it. Michael Kay http://www.saxonica.com/
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