Re: understanding floating point types

["J-P. Rosen" <rosen@adalog.fr>]

Le 23/08/2010 08:29, Ada novice a �crit :
> On Aug 22, 9:34 pm, "Dmitry A. Kazakov" <mail...@dmitry-kazakov.de>
> wrote:
> 
>> The machine number precision must be equal or greater than the model one.
>>
> Thanks for the explanation. If a model number is a number which can be
> accurately representable by a computer, then I don't understand the
> term machine number. 
A model number is a number that must be represented exactly on any
implementation. A machine number is a number that is represented exactly
on a given implementation.

Of course, the machine numbers are a superset of the model numbers =>
you can get more accuracy than required, not less.


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           J-P. Rosen (rosen@adalog.fr)
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