[sage-devel] Re: PROPOSAL: remove python3 spkg from Sage

Wouldn't that entail to have to maintain support for a wider selection of Python versions ? Le lundi 31 mars 2025 à 05:05:51 UTC+2, dim...@gmail.com a écrit : > I propose to remove python3 (and sqlite - which has no other consumers) > from the list of Sage spkgs (packages). > Anno 2025 one has s

[sage-devel] Re: How to build sagelib with multiple processes in parallel?

FWIW, upgrading 6.10.beta9 to 6.10.rc0 on Debian testins ran in parallel. HTH, Le dimanche 23 mars 2025 à 19:57:40 UTC+1, Nils Bruin a écrit : > In the past I've build sagelib in parallel, with > > export MAKE="make -j8" > make -j8 build > > This seems to still work for the prerequisites, but fo

Re: [sage-devel] SAGE_NUM_THREADS

Data point : on 10.6.beta9 with Python 13.2, I get 1 if sage is started without defining SAGE_NUM_THREADS, and n if I define SAGE_NUM_THREADS being n: charpent@brique:~$ sage -c 'print(sys.version)' 3.13.2 (main, Feb 5 2025, 01:23:35) [GCC 14.2.0] charpent@brique:~$ sage -c 'print(version())'

Re: [sage-devel] SAGE_NUM_THREADS

Data point : on 10.6.beta9 with Python 13.2, I get 1 if sage is started without defining SAGE_NUM_THREADS, and n if I define SAGE_NUM_THREADS being n : charpent@brique:~$ sage ┌┐ │ SageMath version 10.6.beta9, Release Date: 2

[sage-devel] Re: On plotting frac(x^2+y^2) as complex and implicit plot

I think that the shapes you perceive are moiré patterns, depending on the resolution of your plot, the resolution of your screen and the region you plot. To understand it, start with a plot of [image: \operatorname{frac}\left(x^2\right)],as done here

[sage-devel] Re: ask.sagemath.org is not down, but seriously prone...

word >> *adult*. Our server software seems to have a built-in Comstock >> <https://en.wikipedia.org/wiki/Anthony_Comstock> (aggressive variety…). >> >> Sorry for the noise, >> ​ >> Le samedi 1 février 2025 à 19:25:04 UTC+1, Emmanuel Charpentier a écrit : >

[sage-devel] Re: ask.sagemath.org is not down, but seriously prone...

or the noise, ​ Le samedi 1 février 2025 à 19:25:04 UTC+1, Emmanuel Charpentier a écrit : > As of sam. 01 févr. 2025 19:18:13 CET, ask.sagemath.org can be accessed > and read, but attempting to post a command fails. > > A dialg box is displayed claiming an Internal server error. Another

[sage-devel] ask.sagemath.org is not down, but seriously prone...

As of sam. 01 févr. 2025 19:18:13 CET, ask.sagemath.org can be accessed and read, but attempting to post a command fails. A dialg box is displayed claiming an Internal server error. Another attempt ends up with a Forbidden (403) error. HTH, ​ -- You received this message because you are sub

[sage-devel] Re: integral fail using fricas 1.3.11 using sagemath 10.5 but works with fricas

Dear Martin, Le dimanche 12 janvier 2025 à 14:25:54 UTC+1, axio…@yahoo.de a écrit : Sorry, I don't understand. On Sunday, 12 January 2025 at 12:55:26 UTC+1 emanuel.c...@gmail.com wrote: Le vendredi 10 janvier 2025 à 22:36:39 UTC+1, axio…@yahoo.de a écrit : fricas dilog and sage dilog are not

[sage-devel] Re: integral fail using fricas 1.3.11 using sagemath 10.5 but works with fricas

Le vendredi 10 janvier 2025 à 22:36:39 UTC+1, axio…@yahoo.de a écrit : fricas dilog and sage dilog are not the same: sage: fricas(polylog(3, x)) polylog(3,x) sage: fricas(dilog(x)) dilog(- x + 1) This deserves a github issue. Fixing the interface is (probably) not that hard… Would you mind is

[sage-devel] `ask.sagemath.org` down (again) ?

As of jeu. 10 oct. 2024 09:45:32 CEST : charpent@zen-book-flip:~$ ping ask.sagemath.org PING ask.sagemath.org (194.254.163.53) 56(84) bytes of data. ^C --- ask.sagemath.org ping statistics --- 6 packets transmitted, 0 received, 100% packet loss, time 5111ms HTH, ​ -- You received this mess

[sage-devel] Re: view command

WorksForMe(TM) on 10.5.beta5 compiiled from source running under Debian testing on core i7 + 16 GB RAM. Your problem may be specific to your setup (hardware, OS, type of installation, installed software). Can you describe it ? Especially what you use to generate and view PDFs... HTH, Le samedi

Re: [sage-devel] minimize_constrained is not consistent with different variable names

I have filed a new issue which seems germane to this problem. HTH, ​ Le jeudi 16 septembre 2021 à 14:29:23 UTC+2, Michael Orlitzky a écrit : > On Thu, 2021-09-16 at 01:28 -0700, Pol del Aguila Pla wrote: > > How would one go about contributing a

[sage-devel] Re: sage optional packages

Isn't there a subtle difference between `ptestlong` and `ptestalllong` ? Le lundi 29 juillet 2024 à 08:02:32 UTC+2, Kwankyu Lee a écrit : > On Sunday, July 28, 2024 at 11:11:03 PM UTC+9 Matthias Koeppe wrote: > > Hi William, > > On Friday, July 26, 2024 at 5:35:29 AM UTC+1 William Stein wrote: >

Re: [sage-devel] Re: ask.sagemath.org issues - do we need it?

Le dimanche 30 juin 2024 à 16:45:41 UTC+2, Dima Pasechnik a écrit : On Sun, Jun 30, 2024 at 4:14 AM Matthias Koeppe wrote: > > Another migration route that we could consider: > Importing the messages from AskBot into Google Groups (merging with the sage-support group). Google Groups' int

[sage-devel] Re: Vector/matrix equations

}, {a2, a3}} == {{b0, b1}, {b2, b3}} In[4]:= Flatten[A] Out[4]= {a0, a1, a2, a3} In[5]:= Solve[A==B, Flatten[B]] Out[5]= {{b0 -> a0, b1 -> a1, b2 -> a2, b3 -> a3}} ​ Le mardi 25 juin 2024 à 09:08:59 UTC+2, Emmanuel Charpentier a écrit : > Inspired by this ask.sagemath que

[sage-devel] Vector/matrix equations

Inspired by this ask.sagemath question : sage: V=vector(var("v", n=2)) sage: W=vector(var("w", n=2)) sage: V==W False This is expected from a (Python) programmer’s point of view, but the mathemat

[sage-devel] Re: Italicizing inside a literal block

"Literal" and "formatted" is an oxymoron. Le dimanche 23 juin 2024 à 06:39:09 UTC+2, Janmenjaya Panda a écrit : > Could someone please mention, how to italicize a particular term inside a > literal block? > Use of `term` results as it is in the HTML document instead of italicizing > it. > > Tha

Re: [sage-devel] On backdooring open source projects

I’d like to point out that Sage, by it’s very nature, *is* a large bundle of other people’s packages, offering them a (more or less) unified interface, thus ensuring interoperability. To reuse a simile used in Sage’s initial statements of intent, Sage is a car using many already- pepared whee

[sage-devel] Re: VOTE: use "blocker" label only for PRs; use "critical" label for Issues

Le mercredi 28 février 2024 à 17:39:25 UTC+1, Eric Gourgoulhon a écrit : -1 from my side, for I think an issue can be a blocker. For instance: https://github.com/sagemath/sage/issues/36914 This issue, which regards the use of the notebook, could not have been detected by the CI framework. It

Re: [sage-devel] Re: Unload "blocker" label

Le lundi 26 février 2024 à 12:59:47 UTC+1, Dima Pasechnik a écrit : On Mon, Feb 26, 2024 at 11:36 AM Kwankyu Lee wrote: On Monday, February 26, 2024 at 6:49:35 PM UTC+9 Dima Pasechnik wrote: >usage 3: Issues that should be fixed as fast as possible > >To me it is rather "issues that should

Re: [sage-devel] Re: Unload "blocker" label

Le lundi 26 février 2024 à 12:59:47 UTC+1, Dima Pasechnik a écrit : [ Snip... ] Are you saying that only PRs can block a release? But how does one even report a very serious issue, without offering a ready fix? Are you saying one should use other channels of communication for this? (Which

[sage-devel] Re: Exception in sum((4*n+1)/factorial(n),n,1,oo)

Le vendredi 9 février 2024 à 15:42:30 UTC+1, Eric Gourgoulhon a écrit : I confirm the bug with Sage 10.3.beta7. It seems to be linked with the Maxima interface. Meanwhile, a workaround is to use the SymPy interface: sage: sum((4*n+1)/factorial(n), n, 1, oo, algorithm='sympy') 5*e - 1 FWIW,

[sage-devel] Re: Wanted: Unicode testers with PR #36861

I seond the previous arguments for switching to lualatex rather than xetex : the former is *officially* the heir apparent to pdftex, while the latter is bound to become an historical, then unmaintained, then paleontological piece of software… And, yes, supporting Unicode is a necessity. Unles

Re: [sage-devel] Poll: deprecate backslash operator

BTW :the changes and advances made in Sage since the last edition of this book may warrant a revision, possibly a new edition. If only for the installation procedures (Conda installation, WSL on Windows, Github replacing Trac, etc...) and the interfaces (Jupyter replacing the Sage notebook, em

[sage-devel] Re: strange error from integrate command with maxima 5.47 and sagemath 10.1 beta 6

Le lundi 17 juillet 2023 à 04:59:53 UTC+2, Nasser M. Abbasi a écrit : fyi, added PR https://github.com/sagemath/sage/issues/35960 Would you conider posting your *upgrade* to Maxima (5.46.0 to 5.47.0) as a PR ? On Sunday, July 16, 2023 at 12:30:53 PM UTC-5 Matthias Koeppe wrote: On Sunday,

Re: [sage-devel] Re: How to use maxima 5.47 with sagemath 10.1 beta?

Le dimanche 16 juillet 2023 à 13:14:14 UTC+2, Dima Pasechnik a écrit : [ Snip... ] Some flavours of Linux, e.g. Gentoo (and Debian?) allows you to have maxima built with ECL system+wide. Not Debian, alas... unless you bite the bullet and install the whole "*sage*" packaging of Sage ... which

[sage-devel] Re: strange error from integrate command with maxima 5.47 and sagemath 10.1 beta 6

FWIW, neither Maxima, Giac, Sympy, Fricas, the Wolfram engine nor the Rubi integrator seem to be able to give a closed form to this antiderivative… - Maxima (5.46.0) fails as reported above relatively quickly (a few seconds). - the default integrator (i. e. what is called wit

Re: [sage-devel] Re: ECL says: Memory limit reached calling expr.full_simplify()

Similarly : sage: expr.expand() 0 sage: expr.factor() 0 HTH, ​ Le samedi 24 juin 2023 à 09:40:16 UTC+2, Emmanuel Charpentier a écrit : > FWIW : > sage: reset() sage: > expr=(1-x)^3+(-x^2+x)^3+(x^2-1)^3-3*(1-x)*(-x^2+x)*(x^2-1) sage: > expr.is_zero() True > > full_s

Re: [sage-devel] Re: ECL says: Memory limit reached calling expr.full_simplify()

FWIW : sage: reset() sage: expr=(1-x)^3+(-x^2+x)^3+(x^2-1)^3-3*(1-x)*(-x^2+x)*(x^2-1) sage: expr.is_zero() True full_simplify may not be necessary… HTH, ​ Le samedi 24 juin 2023 à 06:38:35 UTC+2, Nasser M. Abbasi a écrit : > " yes, simplification (particularly full simplification) can invol

Re: [sage-devel] Re: ECL says: Memory limit reached calling expr.full_simplify()

FWIW: ``` sage: a, x = var("a, x") sage: Ex0=x/(a^5+x^5) sage: FE1=Ex0.integrate(x, algorithm="fricas") sage: len(repr(FE1)) 47199 ``` Fricas may be out of joint here... FWIW, I have been unable to typeset this expression with neither `pdflate` nor `xelatex`. The only way I had to visualize it

[sage-devel] A patch request on `sage-cell-mode` is awaiting maintainer's intervention.

This patch request on sage-cell-mode has been ready for review for about a month. Could some kind-souled maintainer give it a look ? Thnks in advance ! ​ -- You received this message because you are subscribed to the Google Groups "sage-

Re: [sage-devel] Re: VOTE: Follow NEP 29: Recommended Python version

I'd like to stress one important point already made : dropping support for old/antique/paleontologic versions of Python lightens the maintainance workload of the *small* team of Sage developpers. Given the size and the state of this team, this point should *not* be taken lightly... I'd also li

Re: [sage-devel] Re: Problematic SR interpretation of radicals (and non-integer rational exponents) in Sage.

olutions so solve then > checks to see which of the solutions satisfy the original radical > equations. Passing check=False means that the checking is disabled and so > you get all solutions to the polynomial equation which may or may not be > solutions to the radical equation. &g

[sage-devel] Re: Problematic SR interpretation of radicals (and non-integer rational exponents) in Sage.

*Typo* in the preceding message : The polynomial system is of course |x2^2-x1, x3^3-x1, x2+x3+2] Sorry for the noise ! ​ Le samedi 6 mai 2023 à 11:25:07 UTC+2, Emmanuel Charpentier a écrit : > TLDR : Sage easily gets the roots of the polynomial system |x2^2-x1, > x3^4-x1, x2+x3+

[sage-devel] Problematic SR interpretation of radicals (and non-integer rational exponents) in Sage.

TLDR : Sage easily gets the roots of the polynomial system |x2^2-x1, x3^4-x1, x2+x3+2] but interprets [image: \sqrt[3]{x}+\sqrt{x}+2] inconsistently : this expression is *not* zero for the above roots. Details : see the enclosed Jupyter Lab sheet. This seems to be little discussed in Sage doc

Re: [sage-devel] web site from cocalc but in our domain

As of Apr 25, 2023 10:24 UTC, this address cant’be found by a browser using .opendns.org nor by linux’s host : charpent@zen-book-flip:/usr/local/sage-10$ host sage.sagemath.org Host sage.sagemath.org not found: 3(NXDOMAIN) Is that the intended result ? HTH, ​ Le mardi 25 avril 2023 à 12:11:3

Re: Re: [sage-devel] ChatGPT is an expert in SageMath too

“Le droit du pauvre est un mot creux” (“Rights of the poor” is a hollow phrase) Eugène Pottier, *L’internationale* (1871). I am somewhat skeptic about the odds of any legal action suceeding against a porential multi-billion $ buisness prospec

Re: [sage-devel] Re: where is rpy2

Ahem... There are two components to consider : - the package by itself - its interface to Sagemath. Case in point : the Mathematica interface, which is standard (*i. e.* installed in all cases), but active if and only if Mathematica (or the Wolfram engine) is present in the target system. Thi

[sage-devel] Re: What happened to Mathematica magics ?

7;t helpful by default), but > fortunately "%" works. It would be great to fix this, too. > > On Wednesday, March 1, 2023 at 12:09:41 AM UTC-8 Emmanuel Charpentier > wrote: > >> Thank you for the explanation. >> >> The short-term fix works, but is

Re: [sage-devel] Re: Adding labels to github issues

Le dimanche 5 mars 2023 à 14:52:50 UTC+1, Dima Pasechnik a écrit : On Sun, 5 Mar 2023, 13:50 Emmanuel Charpentier, wrote: Dear David, Le mercredi 8 février 2023 à 13:51:40 UTC+1, David Roe a écrit : Yesterday I manually added a bunch of people that I recognized to the sagemath

[sage-devel] Re: Adding labels to github issues

Dear David, Le mercredi 8 février 2023 à 13:51:40 UTC+1, David Roe a écrit : Yesterday I manually added a bunch of people that I recognized to the sagemath organization triage team on github, This currently is 404 (page not found)... which gi

[sage-devel] Re: What happened to Mathematica magics ?

t__ > InterfaceMagic.register_all() > > > On Tuesday, February 28, 2023 at 7:03:24 AM UTC-8 Emmanuel Charpentier > wrote: > >> I don’t use them very often, bu the %mathematica and %%mathematica >> magics seem to have recently disappeared. They don’t appear in the &

[sage-devel] What happened to Mathematica magics ?

I don’t use them very often, bu the %mathematica and %%mathematica magics seem to have recently disappeared. They don’t appear in the %lsmagic output, and raise an error when one attempts to use them. Can someone shed any light on this ? ​ -- You received this message because you are subscr

[sage-devel] Re: Migration to GitHub complete

Thank you ! But I already restarted in a fresh tree, which gad the unexpected side effect of seriously deflating its size (9,4 GB vs 24 GB in the old tree...). The migration guide should be amended... Le lundi 6 février 2023 à 16:06:34 UTC+1, Kwankyu Lee a écrit : > Or > > git branch -D devel

[sage-devel] Re: Migration to GitHub complete

After followong the steps given for an existing tree, my develop branch still followed OLD-ORIGIN. Shouldn't that be orign ? Le lundi 6 février 2023 à 08:02:59 UTC+1, Matthias Koeppe a écrit : > https://github.com/sagemath/sage > > See > https://github.com/sagemath/trac-to-github/blob/master/do

[sage-devel] Re: Doubts about correctness of `integrate(floor(x)^2,x)`

s ``` [image: tmp_7n_jxgco.png] Giac's "antiderivative" implicitly adds `heaviside(x-u)^2` terms... Again, this is wrong... Le vendredi 3 février 2023 à 10:31:17 UTC+1, Emmanuel Charpentier a écrit : > BTW : > > ``` > sage: a, b = var("a, b") > sage: f(x) = floor(x)^2

[sage-devel] Re: Doubts about correctness of `integrate(floor(x)^2,x)`

BTW : ``` sage: a, b = var("a, b") sage: f(x) = floor(x)^2 sage: f(x).integrate(x, a, b) // Giac share root-directory:/usr/local/sage-9/local/share/giac/ // Giac share root-directory:/usr/local/sage-9/local/share/giac/ Added 0 synonyms No checks were made for singular points of antiderivative flo

[sage-devel] Re: Doubts about correctness of `integrate(floor(x)^2,x)`

BTW : sage: a, b = var("a, b") sage: f(x) = floor(x)^2 sage: f(x).integrate(x, a, b) // Giac share root-directory:/usr/local/sage-9/local/share/giac/ // Giac share root-directory:/usr/local/sage-9/local/share/giac/ Added 0 synonyms No checks were made for singular points of antiderivative flo

[sage-devel] Re: Integral of log() and exp() failing the derivative check

Indeed : ``` sage: f(x)=2^(x-1/2*I*log(-e^(-2*I*pi*x))/pi-1/2) ``` The key is probably ``` sage: f(x).diff(x) 0 ``` This should include an (infinite) series of terms in `dirac(x-k)` for k in integers... Logical consequence : ``` sage: f(x).integrate(x) 1/2*sqrt(2)*(-1)^(-1/2*I*log(2)/pi)*x `

[sage-devel] Re: Inverses of matrices over RR

something is *definitely* unhinged here : On 9.8.beta3 running on Debian testing on core i7 + 16 GB RAM, after running : a = RR(-4967757600021511 / 2**106) b = RR(-7769080564883485 / 2**52) c = RR( 5221315298319565 / 2**53) m = matrix([[a, b], [c, -a]]) M = matrix([[var("p%d%d"%(u, v), latex_na

[sage-devel] Re: Different results for numerical and symbolic integration

Forgot : I have graphically checked the numerical quasi-equality of the symbolical integral given by Mathematica and the numerical integral given by Sage. Le mardi 25 octobre 2022 à 15:46:13 UTC+2, Emmanuel Charpentier a écrit : > Essentially correct, bit it’s a tad less simpler : > >

[sage-devel] Re: Different results for numerical and symbolic integration

Essentially correct, bit it’s a tad less simpler : sage: f(x) = x^2*(log(x))^4/((x+1)*(1+x^2)) sage: list(map(lambda u:u.integrate(x, 0, 1), f(x).partial_fraction_decomposition())) [-5/128*pi^5 + 45/64*zeta(5), 45/4*zeta(5)] sage: list(map(lambda u:mathematica.Integrate(u, (x, 0, 1)).sage(),

Re: [sage-devel] Solving a system of linear equations with complex numbers yields false solution

FWIW, solve(..., algorithm="sympy") solves this simplified system. HTH, ​ Le jeudi 20 octobre 2022 à 11:16:06 UTC+2, Florian Königstein a écrit : > I'd like to point out that I found a much simpler system of equations for > that it fails. I have also reported in the thread for maxima: > http

Re: [sage-devel] Solving a system of linear equations with complex numbers yields false solution

Le lundi 10 octobre 2022 à 20:37:57 UTC+2, Florian Königstein a écrit : I think it would make sense to file a Sage ticket. So when it will be fixed > in Maxima, it can be verified that it (hopefully) will also work in Sage > with the updated version of Maxima. > Done.

Re: [sage-devel] Solving a system of linear equations with complex numbers yields false solution

This problem has been filed in Maxima’s bug report system. Should a Sage ticket be filed ? ​ Le dimanche 9 octobre 2022 à 19:55:07 UTC+2, Florian Königstein a écrit : > Thank you for your efforts. > > Yes, it was me who posted the original post >

Re: [sage-devel] Solving a system of linear equations with complex numbers yields false solution

I posted about the same problem ; the original post in ask.sagemath.org is clearer. The original problem seems to

Re: [sage-devel] Solving a system of linear equations with complex numbers yields false solution

I [osted] Le dimanche 9 octobre 2022 à 14:15:57 UTC+2, dim...@gmail.com a écrit : > On Sun, Oct 9, 2022 at 9:23 AM David Joyner wrote: > > > > On Sun, Oct 9, 2022 at 3:25 AM Florian Königstein > wrote: > > > > > > I have equations for the analysis of an electric circuit. They contain > at sev

[sage-devel] Re: VOTE: move Sage development to Github

+1 for Github Also wishing for contingency plan for re-migrating to self-hosted Gitlab. Le mercredi 21 septembre 2022 à 19:23:36 UTC+2, David Roe a écrit : > Dear Sage developers, > Following extensive discussion, both recently >

Re: [sage-devel] trac.sagemath.org unreachable

this to "git trac" >>> >>> On Wed, 31 Aug 2022, 07:45 Emmanuel Charpentier, >>> wrote: >>> >>>> This morning (Aug 31, 2022, 8:43), any attempt to reach ` >>>> trac.sagemath.org` ends up displayong a Python trace : >>>

[sage-devel] Re: trac.sagemath.org unreachable

it_trac.trac_error.TracInternalError: Of note : I could create a new ticket (the one I was trying to fetch) yesterday afternoon. This might be a problem distinct from the one due to the key change (this week-end, IIUIC). Le mercredi 31 août 2022 à 09:04:43 UTC+2, Emmanuel Charpentier a écrit : >

[sage-devel] Re: trac.sagemath.org unreachable

The Web site is still unreachable. Le mercredi 31 août 2022 à 09:02:53 UTC+2, Emmanuel Charpentier a écrit : > Ditto from Git via SSH : > > ```charpent@zen-book-flip:/usr/local/sage-9$ git fetch > @@@ > @WARNI

[sage-devel] Re: trac.sagemath.org unreachable

changed and you have requested strict checking. Host key verification failed. fatal: Impossible de lire le dépôt distant. Veuillez vérifier que vous avez les droits d'accès et que le dépôt existe. ``` Removing the old SSH key cleared git access. Le mercredi 31 août 2022 à 08:45:29 UTC+2, Emm

[sage-devel] trac.sagemath.org unreachable

This morning (Aug 31, 2022, 8:43), any attempt to reach `trac.sagemath.org` ends up displayong a Python trace : ``` Traceback (most recent call last): File "/usr/local/lib/python2.7/dist-packages/trac/web/api.py", line 602, in send_error data, 'text/html') File "/usr/local/lib/python2.7/dist-p

[sage-devel] Re: [sage-support] Sagetex version ?

it to a Python package which uses ninja at build time - and in > fact ninja IS available as Python package. So it is Python enough in my > eyes. > Is ninja already used in building (some part of) Sage ? > On Sat, 20 Aug 2022, 16:06 Emmanuel Charpentier, > wrote: > >>

[sage-devel] Re: Display of scale multiplier in scientific notation (the e notation for powers of ten) is missing for plots starting with 0

Le mercredi 27 juillet 2022 à 16:53:39 UTC+2, niran…@gmail.com a écrit : Dear Kcrisman, > I will look into it *if* you promise me to *review* and *close* my > another ticket https://trac.sagemath.org/ticket/34038 > based on the thread > https://groups.google.com/g/sage-devel/c/tMH1RZNy

[sage-devel] Re: System upgrades breaking sage frequently

FWIW, the very same mishap just happened to me on Debian.testing. What I fail to understand is why Sake was linked to a *specific* version of libflint.so, rather than to the *generic* version… ​ Le mercredi 20 juillet 202

[sage-devel] Re: latex function and operations with fraction subscripts

The /character cannot be part of a symbol’s name (not acepted by the Python interpreter). Try : sage: logr = SR.symbol("logr", latex_name='L_{x/x_0}') sage: x*logr logr*x sage: latex(x*logr) L_{x/x_0} x BTW (question of taste…), I’d rather use logr = SR.symbol("logr", latex_name=r'L_{\frac{x}

[sage-devel] Re: latex function and operations with fraction subscripts

the `/`character cannot be part of a symbol's name (not acepted by the Python interpreter). Try : ``` sage: logr = SR.symbol("logr", latex_name='L_{x/x_0}') sage: x*logr logr*x sage: latex(x*logr) L_{x/x_0} x ``` BTW (question of taste...), I'd rather use `logr = SR.symbol("logr", latex_name=r'

[sage-devel] Re: Request for advice : extend exponentialize ?

Never mind : I went ahead and created Trac#34108 <https://trac.sagemath.org/ticket/34108>, which needs_review (hint, hint….). HTH, ​ Le samedi 2 juillet 2022 à 10:32:30 UTC+2, Emmanuel Charpentier a écrit : > The SR.exponentialize method implements : > > sage: [u(x)==u(x)._s

[sage-devel] Re: Request for advice : extend exponentialize ?

Never mind : I went ahead and created [Trac#34108](https://trac.sagemath.org/ticket/34108), which `needs_review` (hint, hint...). HTH, Le samedi 2 juillet 2022 à 10:32:30 UTC+2, Emmanuel Charpentier a écrit : > The SR.exponentialize method implements : > > sage: [u(x)==u(x)._sympy_(

[sage-devel] Re: Request for advice : extend exponentialize ?

t, arcsinh, arccosh, arctanh, arccsch, arcsech, arccoth))) True ​ Le samedi 2 juillet 2022 à 10:32:30 UTC+2, Emmanuel Charpentier a écrit : > The SR.exponentialize method implements : > > sage: [u(x)==u(x)._sympy_().rewrite("exp")._sage_() > : for u in (sin, cos, tan,

[sage-devel] Request for advice : extend exponentialize ?

The SR.exponentialize method implements : sage: [u(x)==u(x)._sympy_().rewrite("exp")._sage_() : for u in (sin, cos, tan, csc, sec, cot, sinh, cosh, tanh, csch, sech, coth)] [sin(x) == -1/2*I*e^(I*x) + 1/2*I*e^(-I*x), cos(x) == 1/2*e^(I*x) + 1/2*e^(-I*x), tan(x) == -I*(e^(I*x) - e^(-I*x))

Re: [sage-devel] Can't push to trac...

Le dimanche 26 juin 2022 à 22:58:07 UTC+2, dim...@gmail.com a écrit : > > > On Sun, 26 Jun 2022, 21:54 Emmanuel Charpentier, > wrote: > >> Nope : >> >> charpent@zen-book-flip:/usr/local/sage-9$

Re: [sage-devel] Can't push to trac...

: > > > On Sun, 26 Jun 2022, 21:07 Emmanuel Charpentier, > wrote: > >> I recently created [Trac#34087](https://trac.sagemath.org/ticket/34087) >> and created a commit fixing a (minor) problem of (back)translations to >> Mathematica. But I'm un

[sage-devel] Can't push to trac...

I recently created [Trac#34087](https://trac.sagemath.org/ticket/34087) and created a commit fixing a (minor) problem of (back)translations to Mathematica. But I'm unable to push the coimmit. First atempt : ``` charpent@zen-book-flip:/usr/local/sage-9$ git trac push Pushing to Trac #34087... Gue

[sage-devel] Re: Possible bug in the symbolic differentiation of N unknown variables

As I understand it, differentiating a *discrete* sum with respect to its bounds is nonsense ; see my comment in the ticket. ​ Le samedi 28 mai 2022 à 09:02:53 UTC+2, Nils Bruin a écrit : > Actually, this case is fully covered by > > https://trac.sagemath.org/ticket/32161 > > which is, unfortuna

Re: [sage-devel] Re: [sage-release] Re: Sage 9.5 released

On a seemingly unrelated note which is actually quite related, I don’t think it would be possible to find this out, but it would be interesting to know at what rate there has been user -> developer conversion over the years. Depends on the definition of conversion. In olden times, you might

Re: [sage-devel] Re: [sage-release] Re: Sage 9.5 released

Neither approach assumes anything, but using “make” is at least familiar to anyone who has built any unix software in the past 30 years This is a null measure set of Windows users (and probably of Mac users). Especially of undergrad students, which are (or should be) a very sizable portion of

[sage-devel] Re: Error building sage r-3.6.3 (Ubuntu 18.04)

Well… - config can’t detect readline, and configures Sage to install the relevant SPKG. - Compilation of r fails for lack of readline. Did you check the compilation of the readline SPKG ? (You should have something matching *readline*.log somewhere under $SAGE_ROOT

[sage-devel] Re: Looks like a problem somewhere!

WorksForMe(TM) in 9.6.rc0 : sage: d = {0: [2,3,5], 1: [3,4,5], 2: [4],3:[5]}; sage: H=Graph(d) sage: H.is_line_graph() False HTH, ​ Le lundi 18 avril 2022 à 22:41:31 UTC+2, hany.mha...@gmail.com a écrit : > Guys, > I was playing with sage executing this code: > d = {0: [2,3,5], 1: [3,4,5], 2:

[sage-devel] Re: Something.expand() is 0 but factor() is not zero

sage: var("x, y, z") (x, y, z) sage: Ex = (x-y)^2*(y-z)*(z-x) + (y-z)^2*(z-x)*(x-y) + (z-x)^2*(x-y)*(y-z) sage: Ex -(x - y)^2*(x - z)*(y - z) + (x - y)*(x - z)^2*(y - z) - (x - y)*(x - z)*(y - z)^2 sage: Ex.expand() 0 sage: Ex.factor() -(x - y)^2*(x - z)*(y - z) + (x - y)*(x - z)^2*(y - z) - (x

[sage-devel] Re: %lsmagic broken in sage interpreter

That's Trac#30661 ... HTH, Le dimanche 13 mars 2022 à 18:14:48 UTC+1, Eric Gourgoulhon a écrit : > This is https://trac.sagemath.org/ticket/30661 > > A workaround is > sage: %display unicode_art# actually anything but plain > sage: %lsmagic > > Eric.

[sage-devel] Re: https://wiki.sagemath.org/ReleaseTours/sage-9.6

I just checked that my (systemwide) sympy is 1.10, and that Sage’s sympy is still 1.9… ​ Le vendredi 11 mars 2022 à 13:11:48 UTC+1, Emmanuel Charpentier a écrit : > As of 9.6.beta4, sympy is still version

[sage-devel] Re: https://wiki.sagemath.org/ReleaseTours/sage-9.6

As of 9.6.beta4, sympy is still version 1.9 : ┌┐ │ SageMath version 9.6.beta4, Release Date: 2022-03-08 │ │ Using Python 3.9.10. Type "help()" for help. │ └

Re: [sage-devel] I have lost access to g...@git.sagemath.org:sage.git

keys get rejected by newer versions of sshd. > > A id_ed25519 key type appears to be a good choice. > > Dima > > > > On Sat, 19 Feb 2022, 12:51 Emmanuel Charpentier, > wrote: > >> An attempt at a routine git fetch (on the machine I have used for > 2 >> y

[sage-devel] I have lost access to g...@git.sagemath.org:sage.git

An attempt at a routine git fetch (on the machine I have used for > 2 years…) fails : charpent@zen-book-flip:/usr/local/sage-9$ git fetch g...@git.sagemath.org: Permission denied (publickey). fatal: Impossible de lire le dépôt distant. Veuillez vérifier que vous avez les droits d'accès et que

[sage-devel] Re: Bug with a very specific integral computed with giac

raeve, Institut Fourier, Universite de Grenoble I" But now, ptestlong exhibits new bugs <https://groups.google.com/g/sage-release/c/aOpjpfOXgro/m/03WJYuNTFwAJ>. Sigh (again)… HTH, ​ Le dimanche 30 janvier 2022 à 07:25:48 UTC+1, Emmanuel Charpentier a écrit : > To add insult to injury,

[sage-devel] Re: Bug with a very specific integral computed with giac

Le dimanche 30 janvier 2022 à 10:48:27 UTC+1, Samuel Lelievre a écrit : > 2022-01-30 05:10:25 UTC, Emmanuel Charpentier: > > > > After upgrading to 9.5.rc5 and disabling system’s pari and singular > > Did you mean "after upgrading to 9.5.rc4"? > Yes, of course.

[sage-devel] Re: Bug with a very specific integral computed with giac

To add insult to injury, trying to re-enable system’s giac (make giac-clean && configure failed. Somehow,./configurefinds no *suitable* systemgiacversion, and re-builds Sage's giac. It seems that I should also cleanpari` and consorts and re-re-build… Sigh… ​ Le vendredi 28 janvier 2022 à 23:1

[sage-devel] Re: Bug with a very specific integral computed with giac

Okay. That’s a nice one… After upgrading to 9.5.rc5 *and disabling system’s pari and singular* (for other reasons, see there ), configure somehow decided to install the giac SPKG and not to use system’s giac. This triggered the behaviou

Re: [sage-devel] Re: 32768

Le mercredi 19 janvier 2022 à 14:44:29 UTC+1, kcrisman a écrit : > In addition, for me its a matter of sustainability to use things as long >> as they work. > > > +1 > +1. And important in more ways than mathematical... -- You received this message because you are subscribed to the Google G

[sage-devel] Re: Bug with a very specific integral computed with giac

Can’t reproduce on Sage 9.5.rc1 running in Debian testing. First thing after session start : sage: integrate(e^x/(x^2+1), x, -pi, pi) // Giac share root-directory:/usr/share/giac/ // Giac share root-directory:/usr/share/giac/ Added 0 synonyms 1/2*(imag_part(Ei(pi + I))*tan(1/2)^2 - imag_part(Ei

[sage-devel] Re: Proposal: Stop providing binary distributions

Mixed feelings... See my comments on the ticket. Le samedi 8 janvier 2022 à 20:10:15 UTC+1, Matthias Koeppe a écrit : > Comments/review please in https://trac.sagemath.org/ticket/33131 > > -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsub

[sage-devel] ask.sagemath.org down ?

About Dec 28, 2021 15:00 CET ask.sagemath.org doesn't answer. ISTR that it runs on some computer at Université Paris Sud. Can someone check me on this ? -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop rec

[sage-devel] Re: ask.sagemath.org issues - do we need it?

Discourse is somewhat nosy : I have to use it for questions related to Stan ... Le samedi 11 décembre 2021 à 18:52:34 UTC+1, Matthias Koeppe a écrit : > On Saturday, December 11, 2021 at 7:00:54 AM UTC-8 kcrisman wrote: > >> As for sage-support, it's always surprising to m

[sage-devel] Re: A simple funny bug in Sagemath

WorksForMe(TM) in 9.5.beta7. Le mardi 7 décembre 2021 à 10:54:48 UTC+1, Eric Gourgoulhon a écrit : > Hi, > > It works for me with SageMath 9.4. Maybe you should upgrade to that > version (the last stable one). > > Eric. > > Le mardi 7 décembre 2021 à 09:59:42 UTC+1, duan...@gmail.com a écrit :

[sage-devel] Re: Demote SageTeX to an optional package?

Having a *standard* way to integrate Sage’s results in a document is **crucial*. So -1. Counter-proposal : add a pseudo-package à la tinytex (which tests for a local TeX installation, and install a minimal TeX if necessary). Other

[sage-devel] Re: making primecount (and its dependency primesieve) standard

+1, of course... Le mardi 23 novembre 2021 à 11:26:44 UTC+1, dim...@gmail.com a écrit : > primecount is a popular C++ library of efficient procedures to > compute prime_pi(x), i.e. π(x), > number of prime numbers <=x, and related functions. > It's an optional package now. The repo is > https://gi

Re: [sage-devel] Refactoring/modularization work on the Symbolic Ring

Le jeudi 26 août 2021 à 13:25:50 UTC+2, kcrisman a écrit : >> E.g. it looks like integration is not there. >> > > If I recall correctly, we use ginac/pynac only for symbolics proper (i.e. > not calculus), as well as for differentiation. I don't know if symengine > is something to switch

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