Thanks. I've reviewed #17450 and opened #17453 for the integer mod rings.
On Saturday, December 6, 2014 11:39:21 AM UTC-5, Travis Scrimshaw wrote:
>
> Hey Ben,
>
>
>> I came across the following
>>
>> {{{
>> R. = ZZ[]
>> S. = R.quo(x^2+5)
>> S in IntegralDomains()
>> False
>> }}}
>>
>
> This was
On Saturday, December 6, 2014 11:04:31 AM UTC-8, Ralf Hemmecke wrote:
>
> I'd say yes. But it's probably Waldek who has more knowledge of ecl vs.
> sbcl. I only remember that compilation (at least some years ago) with
> ecl took quite a bit longer than with sbcl.
>
Yes, ecl tends to be quite sl
On Saturday, December 6, 2014 9:33:57 AM UTC-8, Martin R wrote:
>
> The installation instructions say that ecl is roughly 3 times slower.
> Once upon a time, when I was a fricas contributor, it made quite a
> difference. But back than, sbcl was a no-go for sage (I forgot why).
>
I think it w
On Sat, Dec 6, 2014 at 11:04 AM, Ralf Hemmecke wrote:
> On 12/06/2014 06:23 PM, 20100.delecr...@gmail.com wrote:
>> I have a very naive question: the version of lisp we have in Sage is ecl,
>> does it make a huge difference with sbcl ?
> In fact, I don't see any "embeddable" advantage of ecl for S
On Saturday, December 6, 2014 11:13:27 AM UTC-8, Emmanuel Charpentier wrote:
Ahem. I have to retract that : if we want to add an 'algorithm="fricas"'
> option to sage's integrate(), fricas just *has* to be there as a standard
> package.
>
There is precedent otherwise. For instance NumberField(
On Sat, Dec 6, 2014 at 11:13 AM, Emmanuel Charpentier
wrote:
>
>
> Le samedi 6 décembre 2014 19:01:46 UTC+1, Emmanuel Charpentier a écrit :
>>
>> I'm not sure that fricas *has* to be a package : the current versins (6.4,
>> 6.5beta) already have the fricas interface compiled in :
>>
>>
>> /usr/loc
Le samedi 6 décembre 2014 19:01:46 UTC+1, Emmanuel Charpentier a écrit :
>
> I'm not sure that fricas *has* to be a package : the current versins (6.4,
> 6.5beta) already have the fricas interface compiled in :
>
>
> /usr/local/sage-6.5/src/build/lib.linux-x86_64-2.7/sage/interfaces/fricas.py
>
On 12/06/2014 06:23 PM, 20100.delecr...@gmail.com wrote:
> I have a very naive question: the version of lisp we have in Sage is ecl,
> does it make a huge difference with sbcl ?
I'd say yes. But it's probably Waldek who has more knowledge of ecl vs.
sbcl. I only remember that compilation (at leas
>
> sage: fricas.integrate(x^2,x).unparsed_input_form()
> '(1/3)*x^3'
>
Or, more usefully :
sage: toto=eval(preparse(fricas.integrate(x^2,x).unparsed_input_form())) ;
toto
1/3*x^3
sage: parent(toto)
Symbolic Ring
sage: type(toto)
which might be the point of the whole exercise...
HTH,
--
Em
Le samedi 6 décembre 2014 15:38:20 UTC+1, Ralf Stephan a écrit :
>
> On Saturday, December 6, 2014 11:59:14 AM UTC+1, mmarco wrote:
>>
>> If FriCAS is right now the best software for computing these kind of
>> integrals, it might be worth the effort to include it as standard package,
>> write a g
I'm not sure that fricas *has* to be a package : the current versins (6.4,
6.5beta) already have the fricas interface compiled in :
/usr/local/sage-6.5/src/build/lib.linux-x86_64-2.7/sage/interfaces/fricas.py
/usr/local/sage-6.5/src/sage/interfaces/fricas.py
/usr/local/sage-6.5/local/lib/python2.
Maybe one reason to prefer ecl is that it is embeddable, which could allow us
to have a much faster interface than pexpect?
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The installation instructions say that ecl is roughly 3 times slower. Once
upon a time, when I was a fricas contributor, it made quite a difference.
But back than, sbcl was a no-go for sage (I forgot why).
I still love fricas' language. I never underrstood why Python succeeded
and Aldor didn
Hello,
I just discover FriCAS and its tremendous possibilities. I just updated the
package that we ship we Sage from version 0.3.1 to version 1.2.4 (more
information at http://trac.sagemath.org/ticket/9465). It might become a
more standard package.
I have a very naive question: the version of
We should support the "let's encrypt" project asap, though it is "launching
in 2015"...
On Saturday, December 6, 2014 10:10:54 AM UTC, P Purkayastha wrote:
>
> Hello devs,
>
> I hope someone here knows how the certificate system works for https
> connections.
>
> I am raising this question
Hey Ben,
> I came across the following
>
> {{{
> R. = ZZ[]
> S. = R.quo(x^2+5)
> S in IntegralDomains()
> False
> }}}
>
This was an easy fix since we do the primitive test when constructing the
quotient. This is http://trac.sagemath.org/ticket/17450 which is
needs_review.
> and even simple
Hi,
I don't know which of the following is better in the "three M"'s as I have
close to no experience with them, but I suspect at least the documentation
part is...
- Dima Pasechnik mentioned representation theory of associative algebras,
but even linear algebra over fields is not implemented
On Saturday, December 6, 2014 4:30:35 PM UTC+1, bluescarni wrote:
>
> - I imagine if you calculate it as an elliptic integral (say, using the
> Weierstrassian functions) you would end up with elliptic invariants g1 and
> g2 with special values that make the elliptic integral collapse to an
> ele
I came across the following
{{{
R. = ZZ[]
S. = R.quo(x^2+5)
S in IntegralDomains()
False
}}}
and even simpler
{{{
R=Zmod(5)
R in IntegralDomains()
False
}}}
This is related to
https://groups.google.com/forum/#!topic/sage-algebra/6C3XkkLfllw
but I couldn't find what ticket it is associated with.
On 5 December 2014 at 20:48, 'Martin R' via sage-devel <
sage-devel@googlegroups.com> wrote:
>
> A famous example is
>
> integrate(x/sqrt(x^4+10*x^2+-96*x-71),x)
>
> which Mathematica won't do, although it is elementary, i.e., has a
> solution in terms of elementary functions:
>
>
> log((x^6+15*x^4
On 5 December 2014 at 21:45, maldun wrote:
> I agree with you that it is not that important as it was some years ago.
> Nevertheless be aware that many professional users in engineering
> and research can't go online that simply, because of security reasons, and
> company policies (I know that fr
On Saturday, December 6, 2014 11:59:14 AM UTC+1, mmarco wrote:
>
> If FriCAS is right now the best software for computing these kind of
> integrals, it might be worth the effort to include it as standard package,
> write a good interface and adapt the integrate methods to use it, at least
> as a
>
> I hope someone here knows how the certificate system works for https
> connections.
>
> I am raising this question because of the "Let's Encrypt" announcement
> [1] made by EFF last month. It would make it easier to recommend the secure
> mode for the sage notebook. Currently, all brows
El sábado, 6 de diciembre de 2014 09:57:09 UTC+1, tdumont escribió:
>
> Hi,
> If I read this: http://en.wikipedia.org/wiki/Risch_algorithm
> I understand that : f=x/(sqrt(x^4+10*x^2-96*x-71)) has an anti-primitive.
> I do not have maple, so I do nt know if Maple can integrate it; bur
> sage c
Hello devs,
I hope someone here knows how the certificate system works for https
connections.
I am raising this question because of the "Let's Encrypt" announcement
[1] made by EFF last month. It would make it easier to recommend the secure
mode for the sage notebook. Currently, all browsers
Hi!
Since yesterday evening (middle European time) I try to do "git trac
push" for #15820. It fails, and as usual it gives no error message.
Is that a problem on my side (if so: How to track it down?), or is
something wrong with trac?
Cheers,
Simon
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Hi,
If I read this: http://en.wikipedia.org/wiki/Risch_algorithm
I understand that : f=x/(sqrt(x^4+10*x^2-96*x-71)) has an anti-primitive.
I do not have maple, so I do nt know if Maple can integrate it; bur
sage cannot:
>f=x/(sqrt(x^4+10*x^2-96*x-71))
>integral(f,x)
integrate(x/sqrt(x^4 + 10*
Hi,
Le 05/12/2014 21:45, maldun a écrit :
I agree with you that it is not that important as it was some years ago.
Nevertheless be aware that many professional users in engineering
and research can't go online that simply, because of security reasons, and
company policies (I know that from first
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