Dirk, I'd prefer to have this discussion on sage-devel, where it will
be archived and other people can chip in as well. So I'm replying
both to you and to sage-devel... I hope you don't mind.
On Sun, Jul 11, 2010 at 3:56 AM, Dirk Laurie wrote:
> On Fri, Jul 09, 2010 at 11:39:15PM -0700, Carl Wit
Sorry to be so late (10 months late!) in responding to this; I'm
getting back to Sage development and I'm reading through my sage-devel
archives.
Dirk, I don't know if you still care about this... I'm the original
author of the code (and documentation) in question. I basically made
up the behavio
On Sep 9, 9:35 pm, Dirk wrote:
> Any fixed-point representation is dubious when dealing with bounds
> that have no significant digits in common, and nonsensical when they
> are not of the same order of magnitude. Maybe automatically revert to
> bracket notation as is done for Infinity and NaN.
>
On Sep 9, 8:28 pm, Yann wrote:
> Hi,
> Just to be sure I understand your proposal, would the following be the
> expected behavior?
>
> sage: RIF(7,123).str()
> '0?'
> sage:RIF(7,123).str(error_digits=1)
> '0?0..2e2'
> sage:RIF(7,123).str(error_digits=2)
> '0?00..13e1'
> sage:RIF(7,123).str(error_
Dirk wrote:
>
>
> On Sep 9, 6:17 pm, Jason Grout wrote:
>
>> That's how I understand it from the documentation. Wow, I really like
>> your explanation. Would you care if we included that in the
>> documentation? Are you comfortable submitting a patch to the documentation?
> Not really, in v
Hi,
Just to be sure I understand your proposal, would the following be the
expected behavior?
sage: RIF(7,123).str()
'0?'
sage:RIF(7,123).str(error_digits=1)
'0?0..2e2'
sage:RIF(7,123).str(error_digits=2)
'0?00..13e1'
sage:RIF(7,123).str(error_digits=3)
'0?007...123'
NB: actual behavior is
sage:
On Sep 9, 6:17 pm, Jason Grout wrote:
> That's how I understand it from the documentation. Wow, I really like
> your explanation. Would you care if we included that in the
> documentation? Are you comfortable submitting a patch to the documentation?
Not really, in view of my response to the
Dirk wrote:
>
>
> On Sep 9, 2:42 pm, Jason Grout wrote:
>> Dirk wrote:
>>> I do not understand the behaviour below.
>>> sage: x=RIF(3+10/71,3+1/7)
>>> sage: x
>>> 3.15?
>>> sage: x.str(style='brackets')
>>> '[3.1408450704225350 .. 3.1428571428571433]'
>>> Both endpoints start with 3.14, both en
On Sep 9, 2:42 pm, Jason Grout wrote:
> Dirk wrote:
> > I do not understand the behaviour below.
>
> > sage: x=RIF(3+10/71,3+1/7)
> > sage: x
> > 3.15?
> > sage: x.str(style='brackets')
> > '[3.1408450704225350 .. 3.1428571428571433]'
>
> > Both endpoints start with 3.14, both endpoints round t
Dirk wrote:
> I do not understand the behaviour below.
>
> sage: x=RIF(3+10/71,3+1/7)
> sage: x
> 3.15?
> sage: x.str(style='brackets')
> '[3.1408450704225350 .. 3.1428571428571433]'
>
> Both endpoints start with 3.14, both endpoints round to 3.14.
> Surely the display should rather be '3.14?'.
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