Subject: Re: [xsl] XPath / XSLT 2.1 - Rounding algorithms From: "Peter Rushforth" <peter.rushforth@xxxxxxxxx> Date: Thu, 13 Nov 2008 22:13:14 -0500 |
Hi Ken, Thanks for your reply. > Not sure where you read that ... the round() function goes to the nearest > whole number or does a ceiling() for the value "x.5": > > http://www.w3.org/TR/2007/REC-xpath-functions-20070123/#func-round OK you're right, and I remember looking at that. But that's integer rounding, not really what I'm looking for. > >> Specifically, round-half-up(decimal_num,num_digits), where 'up' means >> towards >> positive or negative infinity, is what I'm looking for. round(3.065) returns 3. , whereas my need is for a function to return 3.07 (say), something like this, say: round-half-up(3.065,2) -> 3.07 round-half-up(-3.065,2) -> -3.07 > > Except for the number of digits you could do: > > if( x < 0 ) then -( round(abs(x)) ) else round(x) > > ... and use format-number() to handle the digits bit. That's the kind of jumping through hoops I was hoping to avoid. > > I hope the example below helps. It does, I think it illustrates my point. Cheers, Peter
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