Dear RJF,
Dear list,
This was an interesting read and I have learnt some things:
* I wrongly assumed floating point in computer context to mean sign
bit, fixed range for mantissa, fixed range for exponent, special
cases for -inf, +inf, +0, -0, nan.
* I think Sage's RealField(prec) is more accur
On Wed, Aug 20, 2014 at 4:47 PM, rjf wrote:
>
> On Saturday, August 9, 2014 7:35:13 PM UTC-7, Erik Massop wrote:
>
>> In fact I don't
>> expect addition, negation, multiplication, or subtraction to be exact
>> either. Indeed, they are not exact:
>> sage: a = 1e-58
>> sage: a
>> 1.000
On Fri, Aug 8, 2014 at 6:57 PM, rjf wrote:
>
>
> On Thursday, August 7, 2014 10:55:37 PM UTC-7, Robert Bradshaw wrote:
>>
>> On Thu, Aug 7, 2014 at 9:02 AM, rjf wrote:
>> >
>> >
>> > On Wednesday, August 6, 2014 8:11:21 PM UTC-7, Robert Bradshaw wrote:
>> >>
>> >>
>> >>
>> >> The are two represen
By the way, when reading the names sage gives to various implemented
things, you should always realise that they are abbreviations.
PowerSeriesRing is an abbreviation for
ComputableModelOfAPowerSeriesRingCheckDocumentationForDetailsAndOptions.
The lack of transitivity of equality in sage does b
On Wednesday, August 20, 2014 7:08:24 PM UTC-7, Bill Hart wrote:
>
> You didn't tell us the answers to the riddles. Or did I miss them.
>
> oops/ 4 legs. calling the tail a leg doesn't make it a leg.
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You didn't tell us the answers to the riddles. Or did I miss them.
On Thursday, 21 August 2014 01:47:04 UTC+2, rjf wrote:
>
>
>
> On Saturday, August 9, 2014 7:35:13 PM UTC-7, Erik Massop wrote:
>>
>>
>>
>
>
>> Similarly I would call RealField(prec) a field, because it represents
>> the fi
On Tuesday, August 19, 2014 12:13:07 PM UTC-7, Simon King wrote:
>
> I think this would make sense---of course with bidirectional coercions,
> as mentioned in my previous mail.
>
Bidirectional coercion implies memory leak: The strong references to the
codomains on the coercion maps will keep
On Saturday, August 9, 2014 7:35:13 PM UTC-7, Erik Massop wrote:
>
>
>
> Similarly I would call RealField(prec) a field, because it represents
> the field of real numbers (e.g. Dedekind cuts). At the same time I am
> sure that some mathematical properties that I know from the mathematic
Sorry I've been away for a week, and sorry for quoting so much of
Erik's note. It is unusual for me to disagree with virtually EVERY
statement in such a large collection. Obviously we have different contexts
for almost everything. Now I would not say "violent disagreement" because
almost ea
Hello,
I am trying in #12212 to allow plotting colored 3D surfaces.
http://trac.sagemath.org/ticket/12212
So far, progress has been done on jmol, tachyon and canvas3D viewers.
Does anybody know what is the viewer used in sagemath cloud ?
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>
> Hello group:
>
> Is the trac server down just for me? I have been unable to pull from the
> trac for quite sometime now. I always get:
>
> $ git pull trac develop
> fatal: unable to connect to trac.sagemath.org:
> trac.sagemath.org[0: 128.208.178.249]: errno=Connection timed out
>
> Any help
On 2014-08-19 23:42, Peter Bruin wrote:
Bonjour Sébastien,
I get the below regression with 6.3 (compare to 6.3.beta3). Strange
error no?
This kind of error can happen when ECL is upgraded but Maxima is not
reinstalled. In that case, "sage -f maxima" will probably solve it.
If you build Sage
Well, I agree that this should be a priority, but you don't know that it
won't happen. This online discussion is set up by Europe to decide on the
topic of a workshop that will take place on 6/7 November. Once the topics
are decided, the main goal in the workshop itself will be to decide on
funding
On Wednesday, August 20, 2014 12:34:58 PM UTC+2, Paul-Olivier Dehaye wrote:
>
> This might be of interest to the sage communities
> https://ec.europa.eu/digital-agenda/en/node/72901/subscribe
>
>
What I would really like them to do is to even more strengthen their bias
towards "openess". They ad
This might be of interest to the sage communities
https://ec.europa.eu/digital-agenda/en/node/72901/subscribe
Paul-Olivier Dehaye
SNF Assistant Professor of Mathematics
University of Zurich
http://user.math.uzh.ch/dehaye/contact_info.txt
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