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Re: Mathematical accuracy in xpath

From: Thomas Braun <spam@--------------.-->
To: NULL
Date: 6/16/2009 3:54:00 PM
Martin Honnen wrote:

> kinobo wrote:
>> If I execute the following xslt I get the result given below.
>> I'm no mathematician but 100 times 2500.01 does not equal 250001.00000000003
> 
> Well XPath 1.0 uses double floating point numbers like JavaScript or 
> Java do too and with these there is limited precision, in particular 
> when there is no finite binary representation of a number.

For more details, he (she?) might also look here:

http://en.wikipedia.org/wiki/Floating_point#Accuracy_problems

Thomas


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