Hi,
The project was renamed to SymEngine and can be found at https://github.com/
symengine/symengine. Python wrappers are at https://github.com/symengine/
symengine.py.
In the GSoC project, I implemented bunch of things like numerics,
conversions to sage and sympy and also support for using sage
Because of broader targetting (Julia, Haskell etc) it was renamed to
SymEngine
https://github.com/symengine/symengine
Sage was also aimed for but the speed differences nearly vanished
with Pynacs use of mpz_t and mpq_t with numerics.
Regards,
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I might add that even transcendental functions can be dealt with by similar
tricks;
e.g. if you need sin(z) you can set introduce u,v satisfying u^2+v^2=1 and
set u=sin(z).
On Thursday, January 5, 2017 at 4:30:16 PM UTC, John Cremona wrote:
>
> On 5 January 2017 at 15:59, Eric Gourgoulhon > wr
Dear all,
some time ago, there were efforts to make CSymPy the new symbolic engine
of SageMath. I think it was even a GSoC project.
Just because I out of curiosity, what is the current status of this?
(It seems hard to search for CSymPy on the web...)
Best,
Daniel
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Le jeudi 5 janvier 2017 17:30:16 UTC+1, John Cremona a écrit :
>
>
> It may seem heavy-handed but the final outcome is likely to be better
> this way. I did a complicated computation involving a whole lot of
> different number fields, mostly cyclotomic fields, and I kept on
> restarting with a
Hello,
On 2017-01-05 17:29, Frédéric Chapoton wrote:
> Tickets with untrusted authors are never looked at, unless you ask
> specifically so :
> {
> "Clemens Heuberger": "trusted",
> "Roswitha Rissner": "not trusted"
> }
that's clear. My config.json has
"extra_trusted_authors":
On 5 January 2017 at 15:59, Eric Gourgoulhon wrote:
>
>
> Le jeudi 5 janvier 2017 16:32:55 UTC+1, Dima Pasechnik a écrit :
>>
>>
>> we can work modulo the ideal generated by w^2+z and w'^2+z', sure, why
>> not?
>
>
> What I meant is that, suppose you start with the ring modulo the ideal
> generate
Hello,
Tickets with untrusted authors are never looked at, unless you ask
specifically so :
{
"Clemens Heuberger": "trusted",
"Roswitha Rissner": "not trusted"
}
Frederic
Le jeudi 5 janvier 2017 16:00:53 UTC+1, Clemens Heuberger a écrit :
>
> I am playing around with a patchbot and I a
Le jeudi 5 janvier 2017 16:32:55 UTC+1, Dima Pasechnik a écrit :
>
>
> we can work modulo the ideal generated by w^2+z and w'^2+z', sure, why not?
>
What I meant is that, suppose you start with the ring modulo the ideal
generated by w^2+z and at some point in the work flow, you decide to
intro
On Thursday, January 5, 2017 at 3:27:46 PM UTC, Eric Gourgoulhon wrote:
>
> Le jeudi 5 janvier 2017 10:35:27 UTC+1, Dima Pasechnik a écrit :
>>
>>
>> Thanks for your suggestion; however, I am not sure if this could fully
>>> work: some computations require to take derivatives, i.e. to evaluate
Le jeudi 5 janvier 2017 10:35:27 UTC+1, Dima Pasechnik a écrit :
>
>
> Thanks for your suggestion; however, I am not sure if this could fully
>> work: some computations require to take derivatives, i.e. to evaluate
>> d/dx (sqrt(-z)), where z is the rational function of (x,y) discussed
>> above.
I am playing around with a patchbot and I am wondering whether there is some
kind of caching or other latency involved with the tickets which are available
for testing.
For instance, ticket #21992: the branch was last changed 25 hours ago; 6 hours
ago it was set to positive review. However,
Travis Scrimshaw wrote:
> That is not true. Note that Foo.has_coerce_map_from() is not
> Foo._coerce_map_from_(). The method has_coerce_map_from() calls
> _coerce_map_from_, which should either return a coercion map or True,
> and in the latter case, then it uses Foo(bar) to define the coercion
> (
On Thursday, January 5, 2017 at 9:16:45 AM UTC, Eric Gourgoulhon wrote:
>
>
>
> Le mercredi 4 janvier 2017 23:41:00 UTC+1, Dima Pasechnik a écrit :
>>
>>
>>
>> On Wednesday, January 4, 2017 at 9:06:44 PM UTC, Eric Gourgoulhon wrote:
>>>
>>> Le mercredi 4 janvier 2017 21:47:00 UTC+1, Dima Pasechni
Le mercredi 4 janvier 2017 23:41:00 UTC+1, Dima Pasechnik a écrit :
>
>
>
> On Wednesday, January 4, 2017 at 9:06:44 PM UTC, Eric Gourgoulhon wrote:
>>
>> Le mercredi 4 janvier 2017 21:47:00 UTC+1, Dima Pasechnik a écrit :
>>>
>>>
>>>
>>> It's because I need to consider sqrt(-z), so that I cannot
Le jeudi 5 janvier 2017 08:01:42 UTC+1, Ralf Stephan a écrit :
>
> There was a bug in the Pynac/Singular interface. To cancel fractions
> a GCD is done via Singular. This was fixed 7 days ago in
>
> https://github.com/pynac/pynac/commit/fd180a9a82018e97c540950c1bbf083768f703ef
> and the new Pynac
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