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MathGroup Archive 2005

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Re: Re: Globally limiting precision or accuracy


On 8 Oct 2005, at 15:48, Andrzej Kozlowski wrote:

> You certainly cannot be sure that any machine precision
> computation is accurate even to three digits.

Of course I meant "you can't be sure unless you can show that it is  
by hand"; in other words the fact that you got a certain number of  
digits of precision in the input of a machine precision computation  
alone does not guarantee anything about the precision of the output.

Andrzej Kozlowski


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