I need to know which giac is used by sagemath when I do this command
>sage
┌────────────────────────────────────────────────────────────────────┐
│ SageMath version 10.5, Release Date: 2024-12-04 │
│ Using Python 3.13.1. Type "help()" for help. │
└────────────────────────────────────────────────────────────────────┘
sage: x=var('x')
sage: integrate(sin(x),x,algorithm="giac")
-cos(x)
sage:
In the above, is sagemath calling the system installed giac 1.9.0.998 in
/usr/bin/giac or is it calling its own (internally) build giac into the
sagemath binary?
If it is calling its own giac, how to find the full version number?
I need to document which version of giac I am using and now I am not sure.
The problem is that giac 1.9.0 does not tell the exact version. As you see
from
https://www-fourier.ujf-grenoble.fr/~parisse/debian/dists/stable/main/source/
giac 1.9.0 was first released in April 2022, and 1.9.0.998 on December 12,
2024,
that is two years span. But both print 1.9.0 as version number !
So it is important to know the last 3 digits to know how old
or new is the giac used by sagemath.
Thanks
--Nasser
On Saturday, January 4, 2025 at 11:33:54 PM UTC-6 Nils Bruin wrote:
> Are you interested in the giac that is used by a command like "giac(1)"?
> That starts up a separate process, so if you use something like "ps ax"
> you'll get a line like:
>
> 1936931 pts/11 Ssl+ 0:00 /usr/bin/giac --sage
>
> which tells you which binary is running.
>
> On Saturday, 4 January 2025 at 21:01:44 UTC-8 Nasser M. Abbasi wrote:
>
>> I am on arch linux, and I found that arch pacman package manager has
>> latest sagemath. So I do not have to build sagemath from source, which is
>> much easier.
>>
>> So I used pacman to install sagemath 10.5 , also used it to install giac.
>>
>> The issue is that, I do not know if sagemath is using its own builtin
>> giac now or is it using the one I have also installed using pacman on same
>> linux.
>>
>> Is there a way to find out the exact version of giac that sagemath is
>> using? Is it using one builtin internally inside sagemath binary, or it is
>> using the one I have on linux outside of sagemath?
>>
>> which sage
>> /usr/bin/sage
>> >sage --version
>> SageMath version 10.5, Release Date: 2024-12-04
>> >sage
>> ┌────────────────────────────────────────────────────────────────────┐
>> │ SageMath version 10.5, Release Date: 2024-12-04 │
>> │ Using Python 3.13.1. Type "help()" for help. │
>> └────────────────────────────────────────────────────────────────────┘
>> sage: print(giac.version())
>> "giac 1.9.0, (c) B. Parisse and R. De Graeve, Institut Fourier,
>> Universite Grenoble Alpes. Optimization, signalprocessing, graph theory (c)
>> Luka Marohnić"
>> sage: exit()
>>
>>
>> >which giac
>> /usr/bin/giac
>> >giac --version
>> 1.9.0
>> >
>>
>> The problem is that pacman actually installed giac 1.9.0-998, even though
>> the version says 1.9.0 (this is because giac does not update the last 3
>> digits in the version number).
>>
>> >pacman -Q| grep giac
>> giac 1.9.0.998-1
>> >
>>
>> And this is the latest giac version.
>>
>> I'd like to know if sagemath binary is using its own giac or is it using
>> the system one, which is 1.9.0.998
>>
>> Thanks
>> --Nasser
>>
>>
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