On 17 April 2015 at 03:29, Steven D'Aprano wrote:
> On Thu, Apr 16, 2015 at 03:11:59PM -0700, Jim Mooney wrote:
>
>> So the longer numerator and denominator would, indeed, be more accurate if
>> used in certain calculations rather than being normalized to a float - such
>> as in a Fortran subrouti
On Thu, Apr 16, 2015 at 03:11:59PM -0700, Jim Mooney wrote:
> So the longer numerator and denominator would, indeed, be more accurate if
> used in certain calculations rather than being normalized to a float - such
> as in a Fortran subroutine or perhaps if exported to a machine with a
> longer bi
The whole point of the discussion is that this is *not* a presentation
issue. Fraction(1.64) and Fraction("1.64") *are* two different numbers
because one gets constructed from a value that is not quite 1.64.
Wolfgang Maier
--
So the longer numerator and denominator would, indeed, be more accurate
On 04/16/2015 01:24 PM, Jim Mooney wrote:
Is this "inaccurate"? Well, in the sense that it is not the exact true
mathematical result, yes it is, but that term can be misleading if you
think of it as "a mistake". In another sense, it's not inaccurate, it is
as accurate as possible (given the limi
On Apr 16, 2015 1:42 PM, "Jim Mooney" wrote:
> Understood about the quondam inexactness of floating point bit
> representation. I was just wondering why the different implementation of
> representing it when using Fraction(float) as opposed to using
> Fraction(string(float)).
Ah. Correction. Y
On 16.04.2015 19:24, Jim Mooney wrote:
Understood about the quondam inexactness of floating point bit
representation. I was just wondering why the different implementation of
representing it when using Fraction(float) as opposed to using
Fraction(string(float)). In terms of user presentation, t
>
> Is this "inaccurate"? Well, in the sense that it is not the exact true
> mathematical result, yes it is, but that term can be misleading if you
> think of it as "a mistake". In another sense, it's not inaccurate, it is
> as accurate as possible (given the limitation of only having a certain
> f
