Re: [sage-support] bug in plot?

On Thu, Mar 14, 2024 at 8:17 PM Dima Pasechnik wrote: > > > On Fri, Mar 15, 2024 at 12:15 AM Dima Pasechnik wrote: > >> >> >> On Thu, Mar 14, 2024 at 9:32 PM Dima Pasechnik wrote: >> >>> >>> >>> On 14 March 2024 21:09:22 GMT, Nils Bruin wrote: >>> >I get the impression that without setting

Re: [sage-support] bug in plot?

on.jpg] > On Thu, Mar 14, 2024 at 10:04 AM David Joyner wrote: > >> Hi: >> >> I'm trying to show my students a plot of >> a rational function whose graph is basically 1, >> so I plotted >> f(x) = (x^2+0.0001)/(x^2+0.000101) >> However, there

Re: [sage-support] bug in plot?

se > rcParams["axes.formatter.offset_threshold"] > > > On Thu, Mar 14, 2024 at 10:04 AM David Joyner wrote: > > Hi: > > I'm trying to show my students a plot of > a rational function whose graph is basically 1, > so I plotted > f(x) = (x^2+0.0001)/(x

[sage-support] bug in plot?

'SageMath version 10.3.rc1, Release Date: 2024-02-29' on an ubuntu machine. Can anyone tell what is going on here? I'm happy to attached jpgs of the plots I get, if desired. For comparison, it appears that Sympy plots this correctly. - David Joyner -- You received this message because you

Re: [sage-support] Re: sage 10.3.b2 build problem on OSX 12.7.1

t; > On Friday, December 15, 2023 at 10:52:10 AM UTC-8 David Joyner wrote: > >> Hi: >> >> I tried to compile sage and got this: >> >> The following package(s) may have failed to build (not necessarily >> >> during this run of 'make all-start'):

[sage-support] sage 10.3.b2 build problem on OSX 12.7.1

Hi: I tried to compile sage and got this: The following package(s) may have failed to build (not necessarily during this run of 'make all-start'): * package: editables-0.5 last build time: Dec 15 10:48 log file:

[sage-support] Re: [sage-edu] This site can't be reached localhost refused to connect.

You should email sage-support (cc'd). This list is for teaching with sage. On Fri, Dec 8, 2023, 2:37 PM Taylors SC wrote: > When I would open the Sage app, it would open an Jupyter notebook in a > Chrome window. Now when I open the Sage app, it opens a browser window, but > it has the message

Re: [sage-support] Can not run make

;> > checking for shared library run path origin... done >> >>> > checking for root user... yes >> >>> > configure: error: You cannot build Sage as root, switch to an >> unprivileged user. (If building in a container, use >> --enable-build

Re: [sage-support] Can not run make

9.5 for my > version of Linux. > What happens when you try to run configure as macka? What release of linux are you running? > > Any help is appreciated > > On Sunday, 16 July 2023 at 19:41:09 UTC+10 David Joyner wrote: > >> On Sun, Jul 16, 2023 at 5:33 AM Tim

Re: [sage-support] Can not run make

On Sun, Jul 16, 2023 at 5:33 AM Tim M wrote: > Good evening all, I am trying to run make but get the following error. > make build/make/Makefile --stop > make[1]: Entering directory '/home/macka/Sage/sage-9.5' > rm -f config.log > mkdir -p logs/pkgs > ln -s logs/pkgs/config.log config.log > >

Re: [sage-support] Cyclic Codes

11 de julho de 2023 às 05:13:49 UTC-3, David Joyner > escreveu: > >> On Tue, Jul 11, 2023 at 4:10 AM GUSTAVO TERRA BASTOS >> wrote: >> >>> Hi ! >>> >>> I have been facing problems to describe cyclic codes over finite >>> extension fields. It is

Re: [sage-support] Cyclic Codes

On Tue, Jul 11, 2023 at 4:10 AM GUSTAVO TERRA BASTOS wrote: > Hi ! > > I have been facing problems to describe cyclic codes over finite extension > fields. It is easy to do with GF(p), but I can´t explicit codes over > GF(p^m) (noticing all the mathematical background). Anyone could provide me >

Re: [sage-support] On the special values of Dirichlet L-function

On Wed, Feb 22, 2023 at 12:41 AM 小林健一郎 wrote: > Hi, > I am calculating some class numbers, using sage math for L-function. > In the course, I found that the values of L(1, -12) , L(1, -28) and some > others don't coincide with Cohen' paper, "Sums Involving the Values at > Negative Integers of

Re: [sage-support] How to efficiently generate all graph isomorphism classes of a given size?

Since all the graphs you are counting are disconnected, my guess is that there is a combinatorial argument to determine their number, say L_n, in terms of the number of connected ones. Assuming you know the number of connected graphs on k vertices with n edges (where k<=n+1), call it M_{k,n}, my

Re: [sage-support] evaluation of polynomials mod 8

On Tue, Sep 27, 2022 at 4:46 AM John Cremona wrote: > > Am I doing something stupid here, or is this a bug? > > sage: R = Integers(8) > sage: RXY. = R[] > sage: F = X^3-X^2*Y+X*Y^2+Y^3 > sage: F([4,2]) > 6 > sage: 4^3-4^2*2+4*2^2+2^3 > 56 > sage: (4^3-4^2*2+4*2^2+2^3) % 8 > 0 > Even after

Re: [sage-support] Krawtchouk Polynomials

On Thu, Jun 16, 2022 at 8:03 AM Syedafariha Bukhari wrote: > > Dear Representative, > I am having trouble for Krawtchouk Polynomials my jupyter notebook is giving > error that Krawtchouk is not defined. why it is so? > So we can better help, can you please give an example of the syntax you

Re: [sage-support] Creat fp group using addition relation.

On Wed, May 25, 2022 at 6:08 AM Hongyi Zhao wrote: > > As commented here [1], the following two methods can be used to define an > Cyclic Group: > > ``` > Generators > If the group operation is multiplication then: > > If the group operation is addition then: > > ``` > > For the first case,

Re: [sage-support] Matrix logarithm

On Mon, Apr 18, 2022 at 9:31 AM GUSTAVO TERRA BASTOS wrote: > > Hi guys. > > Given two n x n matrices M, N, we know it is a big problem to find the > positive integer "i" such that M^i = N (There are other hypothesis involved). > In my particular case, I would like to do the same for 3 x 3

Re: [sage-support] Solving logarithmic equations

On Sat, Apr 9, 2022 at 5:18 AM Paolo Robillos wrote: > > Hi, > > I am trying to solve the following equation for x, 1+2log(x+1, 4)==2log(x,2) > > I entered in the input "(1+2log(x+1, > 4)==2log(x,2)).solve(x,algorithm='sympy', domain='all')" > > and the Output was

Re: [sage-support] Convergence of infinite series

On Tue, Mar 29, 2022 at 5:33 AM Varun Kumar wrote: > > Someone help me to study the convergence of infinite series by plotting the > partial sum. > One example is at the end of the calc 2 section of https://doc.sagemath.org/html/en/prep/Calculus.html Another example is at the end of

Re: [sage-support] Re: No module named extern error

On Sat, Feb 12, 2022 at 5:33 AM slelievre wrote: > > What SageMath versions do you have at home and at work? > To get the version information, print the Sage banner: > > sage: sage.misc.banner.SAGE_BANNER = '' > sage: banner() > A;lso, you can use the version command: sage: version() 'SageMath

Re: [sage-support] Morphisms between free groups.

On Fri, Feb 4, 2022 at 4:40 AM 'Michel VAN DEN BERGH' via sage-support wrote: > > Dear all, > > I need to do something which I thought would be quite simple. I have free > groups > F, G with generators x1,x2,x3,x4 and x,y respectively and I need to compute > the image of an element under the

Re: [sage-support] How to list all codewords of C ?

On Tue, Jan 25, 2022 at 9:36 AM GUSTAVO TERRA BASTOS wrote: > > Hey guys. Hope everyone is fine. > I am sage beginner, I´d like to know how to describe all the codewords from > my linear code C. Best, Gustavo. > > Welcome Gustavo! Here's an example: sage: C = codes.HammingCode(GF(2),3); C [7,

Re: [sage-support] why does this not work? i am trying to create a pattern 1 2 3 4 5 6 which will repeat 6 times. i got this method from my lecturer but it is not working

It seems rep is an R function. If you are in the sage notebook, you need to make sure your cell is an R cell. I don't use the notebook much myself, but this: d <- rep(1:8,6) d returns [1] 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 [39] 7 8 1 2 3 4 5 6 7 8 Is

Re: [sage-support] UnicodeEncodeError: 'utf-8' codec can't encode characters in position 26-27: surrogates not allowed

On Sat, Sep 11, 2021 at 6:58 AM zp liu wrote: > > Hola,all! > When I use the function solve(),an error occur and I fail to find solutions. > Needing help! > CODE: > solve(x,x) > I get sage: solve(x,x) [x == 0] sage: version() 'SageMath version 9.3.rc0, Release Date: 2021-03-23' > OUT: >

Re: [sage-support] Other mailing lists

On Mon, Aug 23, 2021 at 7:13 PM H wrote: > I just joined this list a few days ago but also tried to join > sage-algebra, that list however seems dead. The moderator has after almost > a week not approved my membership and the last Google group posting seems > to be from 2018... > > Are there any

[sage-support] Re: [sage-release] Re: Sage 9.4.rc0 released

cross posting On Mon, Aug 2, 2021 at 10:59 AM Raymond Rogers wrote: > Where do I report bugs/inconsistencies/errors (?) > sage-support might be a better place for that sort of report. I'll be happy to approve your post right away. I am having, at least, inconsistencies with the

Re: [sage-support] Graph class method .lovasz_theta is broken

On Mon, Jul 19, 2021 at 3:39 PM Craig E Larson wrote: > Lovasz' theta function used to work. Now it is broken for a wide variety > of graphs. Here's one example: > > g=graphs.CompleteGraph(20) > g.lovasz_theta() > > Using sage-9.1.rc5 (after installing csdp): sage: g=graphs.CompleteGraph(20)

Re: [sage-support] how do I do this exercise that asks me given a bilinear form and a subspace determine the root base of the bilinear form restricted to the subspace

def es(b,W): : m=dimension(span(A)) : n=W.dimension() : B=W.basis() : if transpose(A)!=A: : print("La matrice deve essere simmetrica") : return : else: : componenti=[var('x'+str(i)) for i in range(1,m+1)] :

Re: [sage-support] HELP

On Wed, Jun 23, 2021 at 1:20 PM David Joyner wrote: > > > On Wed, Jun 23, 2021 at 1:07 PM Cosimo Romito > wrote: > >> Hi everyone, would anyone be willing to help me with a sage exercise >> related to the base of a radical of a bilinear form? Thank you. >> soon

Re: [sage-support] HELP

On Wed, Jun 23, 2021 at 1:07 PM Cosimo Romito wrote: > Hi everyone, would anyone be willing to help me with a sage exercise > related to the base of a radical of a bilinear form? Thank you. > soon I attach the track > > Ask sagemath has a similar question:

Re: [sage-support] Graph class maps

On Fri, Nov 6, 2020 at 12:57 PM Julian wrote: > Hello, > > Sage includes the database of graph classes from ISGCI. ISGCI offers a > Java application to query and render visual maps showing the inclusion > relationships among the graph classes and the complexity information wrt > optimization

Re: [sage-support] Re: problem compiling sage-9.2.rc0 on big sur, xcode 12.01

On Thu, Oct 8, 2020 at 2:47 PM slelievre wrote: > 2020-10-08 17:38:08 UTC, David Joyner: > > > > I can log in but don't seem to have permission to add a comment to trac. > > Your trac account was missing a name and an email. > I filled those in, can you try again? > T

Re: [sage-support] Re: problem compiling sage-9.2.rc0 on big sur, xcode 12.01

On Thu, Oct 8, 2020 at 9:48 AM slelievre wrote: > 2020-10-07 21:09:18 UTC, John H Palmieri: > > > > including details of which homebrew packages you've installed. > > To get your installed homebrew packages listed in a file: > ``` > $ brew list --versions > brew-list-versions.txt > ``` > Thank

Re: [sage-support] Re: problem compiling sage-9.2.rc0 on big sur, xcode 12.01

Users/wdj/sagefiles/sage-9.2.rc0/sage' --buildsh) >> >> [python3-3.8.5] When you are done debugging, you can type "exit" to leave >> the subshell. >> >> [python3-3.8.5] >> ******** >>

Re: [sage-support] Re: problem compiling sage-9.2.rc0 on big sur, xcode 12.01

make: *** [openblas] Error 1 Hope this helps. > On Wednesday, October 7, 2020 at 7:39:59 AM UTC-7, David Joyner wrote: >> >> Hi: >> >> The compiler still can't find installed python3: >> >> wdj@jeeves sage-9.2.rc0 % which python3 >> >> /Lib

[sage-support] Re: problem compiling sage-9.2.rc0 on big sur, xcode 12.01

nvironment variable SAGE_KEEP_BUILT_SPKGS=yes to prevent this. make: *** [all-build] Error 1 On Wed, Oct 7, 2020 at 10:39 AM David Joyner wrote: > Hi: > > The compiler still can't find installed python3: > > wdj@jeeves sage-9.2.rc0 % which python3 > > /Library/F

[sage-support] problem compiling sage-9.2.rc0 on big sur, xcode 12.01

leted. Set the environment variable SAGE_KEEP_BUILT_SPKGS=yes to prevent this. make[1]: *** [all-start] Error 1 make: *** [all] Error 2 make: Target `default' not remade because of errors. - David Joyner -- You received this message because you are subscribed to the Google Groups "sage

Re: [sage-support] Can't post on ask.sagemath.org

On Sat, Oct 3, 2020, 3:51 AM Patrick Collins wrote: > Apologies if this is the wrong group to contact. > > I have tried to make two posts that contained a code snippet and some > questions about the results (i.e. no links or terms that I can imagine > triggering the spam filter), but every

Re: [sage-support] compile problem for sage 9.2.b9 on mac 11.0 big sur

last build time: Sep 17 10:10 log file: /Users/wdj/sagefiles/sage-9.2.beta12/logs/pkgs/readline-6.3.008.p0.log build directory: /Users/wdj/sagefiles/sage-9.2.beta12/local/var/tmp/sage/build/readline-6.3.008.p0 Maybe make+configure can't find readline? > On Thu, Sep 17, 2020 at 1:09 PM D

Re: [sage-support] Triple integrals in a specific region of space

On Sun, Sep 6, 2020 at 5:03 AM Teodoro Coluccio wrote: > Can I perform triple integrals in a region of space I define? I'm trying > to migrate from mathematica to sage, and in mathematica I could go and > define a region of space (with various limitations) and then perform the > integral of a

Re: [sage-support] compile problem for sage 9.2.b9 on mac 11.0 big sur

On Sat, Aug 22, 2020 at 6:02 PM Dima Pasechnik wrote: > On Sat, Aug 22, 2020 at 10:51 PM David Joyner wrote: > > > > > > > > On Sat, Aug 22, 2020 at 4:52 PM Dima Pasechnik > wrote: > >> > >> On Sat, Aug 22, 2020 at 8:28 PM Dima Pasechnik &

Re: [sage-support] compile problem for sage 9.2.b9 on mac 11.0 big sur

tried to recompile but it stopped at the same place. I can't install a system python3 using homebrew since it's broken https://github.com/Homebrew/brew/issues/7803 > > > > > On Sat, Aug 22, 2020 at 8:06 PM David Joyner wrote: > > > > > > Hi: > > > &g

Re: [sage-support] Re: bug in CirculantGraph(10,[2,4])?

On Mon, Jun 29, 2020 at 2:04 PM John H Palmieri wrote: > According to wikipedia, graphs.CirculantGraph(n, [j_1, j_2, ...]) is > connected if and only if gcd(n, j_1, j_2, ...) = 1. In this case, the gcd > is 2. If Sage's definition is correct, it's defined as having 10 vertices, > and vertex i is

[sage-support] bug in CirculantGraph(10,[2,4])?

Hi: In SageMath version 9.1.beta3, I get sage: Gamma1 = graphs.CirculantGraph(*10*,[*2*,*4*]) sage: Gamma1.is_connected() False My understanding is that all circulant graphs are connected. Is this a bug? - David -- You received this message because you are subscribed to the Google Groups

Re: [sage-support] Re: How do you use SageMath in research, education, ...?

On Tue, May 26, 2020 at 4:58 PM Matthias Koeppe wrote: > On Saturday, May 23, 2020 at 11:25:56 PM UTC-7, Matthias Koeppe wrote: >> >> On Saturday, May 23, 2020 at 12:18:08 PM UTC-7, Ingo Dahn wrote: >>> >>> Sounds like an interesting event, what is the intended audience? >>> Developers?

Re: [sage-support] Plotting algebraic curves

On Sat, Feb 29, 2020 at 5:29 PM Fernando Gouvea wrote: > Some years ago in a book review, David Roberts had the idea of plotting an > algebraic curve using the transformation (u,v) = (x,y)/(r2 + x2 + y2)1/2, > which transforms the plane into a circle and makes it easy to visualize the >

[sage-support] Re: [GAP Forum] GAP to MATLAB?

Ignore my post. It went to the wrong email list. Sorry. On Wed, Oct 16, 2019 at 8:23 AM David Joyner wrote: > > > On Wed, Oct 16, 2019, 8:06 AM Iverson, Joseph W [MATH] > wrote: > >> Dear GAP forum, >> >> Does anybody know of a way to efficiently get matrice

[sage-support] Re: [GAP Forum] GAP to MATLAB?

On Wed, Oct 16, 2019, 8:06 AM Iverson, Joseph W [MATH] wrote: > Dear GAP forum, > > Does anybody know of a way to efficiently get matrices (say with > cyclotomic entries) from GAP to MATLAB? For instance, is there a package to > export matrices as .mat files? > Suggested reply: One way to do

Re: [sage-support] SageMath installation in macOS Catalina

On Wed, Oct 9, 2019 at 7:42 AM Dima Pasechnik wrote: > > > On Wed, Oct 9, 2019 at 6:34 AM David Joyner wrote: > >> >> >> On Wed, Oct 9, 2019 at 7:14 AM Dima Pasechnik wrote: >> >>> Hi, >>> >>> On Wed, Oct 9, 2019 at 6:03 AM Ge

Re: [sage-support] SageMath installation in macOS Catalina

* [gfortran-7.4.0] Error building gfortran-7.4.0 [gfortran-7.4.0] > > Dima > >> G >> >> On Wednesday, October 9, 2019 at 1:00:37 PM UTC+2, David

Re: [sage-support] Re: solving a linear system of GF(3) -- strange TypeError

On Wed, Oct 9, 2019 at 1:33 AM Robert Samal wrote: > Sorry, F=GF(3), I made my original example shorter and didn't read it > properly. > > So the full problematic code is > > B=matrix(GF(3), 2,2,[1,0,1,0], sparse=True) > v=vector(GF(3), [1,1]) > B.solve_right(v) > > Yes. I can confirm it works

Re: [sage-support] SageMath installation in macOS Catalina

On Wed, Oct 9, 2019 at 6:45 AM George wrote: > Hi, > > I upgraded to the new macOS Catalina and SageMath won't install. I get > errors like "python2.7 cannot be opened because the developer cannot be > verified" and for numerous other components as well. > > Is anyone having the same problem?

Re: [sage-support] solving a linear system of GF(3) -- strange TypeError

On Tue, Oct 8, 2019, 8:18 PM Robert Samal wrote: > I am trying to solve a rather large linear systems of equations of GF(3). > As the matrices are sparse, I thought that adding "sparse=True" to the > constructor of the matrix could be of help. However, I ran to a strange > error message. > >

Re: [sage-support] The behavior of empty sums

On Mon, Jun 17, 2019 at 5:38 AM Peter Luschny wrote: > I don't know what OmegaPolynomial is. However, if you replace it by >> cyclotomic_polynomial, >> it seems to work as expected, doesn't it? >> > > No, it does not. You missed the question. > > >> >> sage: *def* *ib*(m, n): *return*

Re: [sage-support] The behavior of empty sums

On Mon, Jun 17, 2019 at 5:18 AM Peter Luschny wrote: > Hi, > > I think we should be confident that the sum of integers is > again an integer, the sum of rational numbers a rational number > and that the sum of polynomials is a polynomial. > > With Sage this is not the case. > > def ib(m, n):

Re: [sage-support] installation on OSX Mojave, Sage V. 8.7

On Fri, May 24, 2019 at 12:03 PM frank wessel wrote: > downloaded the sage-8.7-OSX_10.11.6-x86_64.dmg (hopefully the latest) > I'm far from an expert on installing but it seems to me that you tried to install an app compiled for 10.11.6 on a 10.14.5 computer. Is this correct? In case that is

Re: [sage-support] Sage Math on Mac

Type ./sage at the prompt. This starts sage. On Sat, May 4, 2019, 8:26 AM Nick Karavas wrote: > The attached file is what I see when I have my terminal opened at this > point. No matter what command I put in it does not seem to recognize the > sage commands. > > On Sat, May 4, 2019 at 8:24 AM

Re: [sage-support] Piecewise Function Fails to Evaluate in its Domain

On Wed, Apr 3, 2019 at 2:47 PM wrote: > The simplest example: > > f = piecewise([[[-pi-1, -pi/2], 0], [(-pi/2,pi/2), 1], [[pi/2, pi+1], 0]]) > print(f(-pi)) > > I'm not sure why it isn't evaluating symbolic numbers like pi, but here's a work-around: sage: f = piecewise([((-pi-*1*, -pi/*2*),

Re: [sage-support] Sage options not recognized.

On Fri, Mar 29, 2019 at 3:47 PM Jose Garcia wrote: > Hi All, > > I'm trying to install a package to sage math, and I can't get sage to > recognize specific options. > > Ex > > $ sage --package fix-checksum conjecturing > Did you mean to type "sage -optional" instead? > sage-run received

Re: [sage-support] primes -- enhancement request

On Tue, Mar 12, 2019 at 11:12 AM Peter Luschny wrote: > You did not say what command you were using. >> > > Oh, I thought that was clear from the error message: prime_range. > The function (implementing the factorial) is on GitHub >

Re: [sage-support] Weak covers of permutations

On Fri, Mar 1, 2019 at 4:25 PM Jeremy Martin wrote: > The weak_covers method gives incorrect answers: > > sage: for w in Permutations(3): > : w, w.weak_covers() > : > ([1, 2, 3], []) > ([1, 3, 2], [[1, 2, 3]]) > ([2, 1, 3], [[1, 2, 3]]) > ([2, 3, 1], [[3, 2, 1]]) > ([3, 1, 2], [[3,

[sage-support] add sage-coding-the...@googlegroups.com ?

Hi: Can someone with access to the website please add sage-coding-the...@googlegroups.com to http://www.sagemath.org/development-groups.html? Thanks! David Joyner -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from

Re: [sage-support] solution of higher order nonlinear boundary value problems

On Thu, Dec 27, 2018 at 8:36 AM Madhu wrote: > How to solve higher order boundary value problems by using sagemath > ODEs or PDEs? I think sympy (included with sage) has more DEs capabilities than maxima (which is the default solver sage uses). Check out

Re: [sage-support] please explain this output

On Sat, Nov 10, 2018 at 10:59 AM Michael Beeson wrote: > def test(): > for b in range(5,6): > for c in range(b+1,b+2): > print(b,c,n(c/b)) > print(5,6,n(6/5)) > > And the output > > sage: test() > > (5, 6, 1.00) > > (5, 6, 1.20) > > sage: version() > > 'SageMath version

[sage-support] Re: Question regarding piecewise.py in Sage

Romain: The best way to get an answer is to send your questions to sage-support, ccd here. I don't know the answer to your question off the top of my head, but can you tell me what the "last modified" date is on the piecewise.py module you're looking at? David J On Mon, Nov 5, 2018, 11:47 AM

Re: [sage-support] Clifford algebras

On Wed, Oct 31, 2018, 5:52 AM deSitter Hi Sagen, > > Has anyone implemented a non-trivial Clifford algebra module? Such a thing > would be able to generate higher algebras recursively and exhibit 8-fold > periodicity, as well as being useful for actual calculation. > They are implemented in

Re: [sage-support] group of roots of unity

On Tue, Oct 23, 2018 at 4:08 AM Daniel Krenn wrote: > Is there an algebraic structure for the group of roots of unity in > SageMath? > To clearify: I think of something whose elements are all roots of unity > or all n-th root of unity for a given n and the group operation is > multiplication. >

Re: [sage-support] Abstract Algebra tutorial ?

On Tue, Jul 10, 2018 at 11:18 PM Pat Browne wrote: > Hi folks, > > Can anyone recommend a good tutorial for using sage Permutations and > groups? I am a complete newbie and haven't been able to figure out how to > do things with symmetry or permutation multiplications. I'm pretty sure > that

Re: [sage-support] Apply PSL(2,5) on P1(F5)

On Tue, Jun 12, 2018 at 5:48 AM riccardoventrella < riccardoventrell...@gmail.com> wrote: > Hello, > I'm having fun with Prof. Joyner Adventures in Group Theory, and I was > experimenting with the smallest > non-abelian simple group, i.e. PSL(2,5). Actually, it can be applied to > the projective

Re: [sage-support] Re: points on a Fermat curve

On Fri, Apr 13, 2018 at 11:47 AM, slelievre <samuel.lelie...@gmail.com> wrote: > Fri 2018-04-13 10:56:17 UTC, David Joyner: >> >> PS: About 3 years ago, a related question was posted: >> >> https://groups.google.com/forum/#!topic/sage-support/s59iDjhu2zU

Re: [sage-support] points on a Fermat curve

me: 22.8 s sage: time Cpts = C.rational_points(algorithm="bn") CPU times: user 22.8 s, sys: 97.2 ms, total: 22.9 s Wall time: 22.9 s > > On 13 April 2018 at 11:55, David Joyner <wdjoy...@gmail.com> wrote: >> >> Hi: >> >> The question below is posted fo

[sage-support] points on a Fermat curve

Hi: The question below is posted for Gary McGuire, who is not a subscriber to this list: "I would like to know the number of rational points on the (projective) curve x^8+y^8=z^8 over the field of order 3^{18}. My question is, can Sage do this calculation, and how?" - David PS: About 3 years

Re: [sage-support] Strange

On Sat, Apr 7, 2018 at 8:52 AM, Henri Girard wrote: > I made this graph (meaning a fano's plane) but I have the zero outside the > graph ? > > I don't understand why ? someone could explain ? > I don't know but sage: edges = [(1,2), (1,3), (1,4), : (2,3), (2,4),

Re: [sage-support] fano matrix

inatorial object. See for example http://buzzard.pugetsound.edu/cs/section-15.html on how to use Sage to explore it. It just happens to have a nice picture associated to it, which the developers of the matroid module implemented. > > I just begin and my question might be nonsense. > > &

Re: [sage-support] fano matrix

On Thu, Mar 29, 2018 at 9:32 AM, Henri Girard wrote: > Hi, > > I don' manage matroid well, is there no way for doing a fano's graph with a > matrix ? > > After I could find adjacent and incident matrix apparently in matroid is not > possible ? The fano matroid is not

Re: [sage-support] error show(with_picture)

On Tue, Mar 27, 2018 at 3:54 AM, HG wrote: > Hi, > I am trying this example : Gráfok - 01 -- Sage > But it's working on his pdf but not in my notebook (sage-8.1) > I guess it's an old function which is not working anymore ? >

Re: [sage-support] fano's plane

it ? > The circle is regarded as a projective line, so the pictures mean the same thing. > > Le 24/03/2018 à 13:26, David Joyner a écrit : > > On Sat, Mar 24, 2018 at 7:22 AM, Henri Girard <henri.gir...@gmail.com> > <henri.gir...@gmail.com> wrote: > > Hi, >

Re: [sage-support] fano's plane

On Sat, Mar 24, 2018 at 7:22 AM, Henri Girard wrote: > Hi, > > how to draw fano's plane in sagemath graph ? > One way is sage: matroids.named_matroids.Fano().show() > -- > You received this message because you are subscribed to the Google Groups > "sage-support"

Re: [sage-support] Is this a bug?

On Mon, Feb 26, 2018 at 8:52 PM, Juan Luis Varona wrote: > In sagemath 7.5, we can use this code: > > t=var('t'); > M=matrix(4,[[0,0,5/4,2],[t,0,0,0],[0,1,0,0],[0,0,1,0]]); > P=charpoly(M); > P.substitute(x=1) > > Then, we get the correct answer >

[sage-support] Re: [sage-algebra] Improving the next code

On Sun, Feb 25, 2018 at 4:11 PM, Juan Grados wrote: > How can I improve the time for the next code?. Basically, I want to solve a > large undetermined binary linear system and then I need to calculate its > hamming weight. > > A = random_matrix(GF(2), 10, 12, density=0.55) > b

Re: [sage-support] Global variable in Boolean function

On Tue, Feb 13, 2018 at 1:46 AM, wrote: > Input: > B. > = BooleanPolynomialRing(order='lex') > l15=b+b > print "l15:",l15 > def fun(): >print "l15:",l15 > I don't get this in 7.6.

Re: [sage-support] Plotting with respect to x^2

On Sat, Jan 27, 2018 at 3:03 PM, saad khalid wrote: > Hello! I have a function and I would like to plot it, but instead of the > "x-axis" scaling by x, I would like have the x-axis scale by x^2. Is this > possible with the current plot function? If you want to plot y = f(x)

Re: [sage-support] Piecewise polynomials in general

On Wed, Jan 24, 2018 at 8:13 PM, Anton Sherwood wrote: > Speaking of piecewise functions, does anyone happen to know of a piecewise > polynomial object for Python? I tried writing one (based on numpy.poly1d) > but its integration method seems to have a bug. It surprises me

Re: [sage-support] Error to download Spanish version Sage

On Mon, Oct 9, 2017 at 9:34 AM, joaquin gh wrote: > http://strange1712.kubuntu-es.org/6733/sage-open-source-mathematics-software > SageMath binaries should be downloaded from mirrors listed here: http://www.sagemath.org/download.html AFAIK, there is no "Spanish version" of

Re: [sage-support] Boolean Polynomial ring

On Fri, Aug 25, 2017 at 4:03 PM, wrote: > i am new in sage. and i want to define an array of dimension 79 and every > time i want to save a new value in each array shell i.e. for i in range(79) > a[i]= any value and also i want define a vector. can you help me out? > I'm

Re: [sage-support] INSTALLATION SAGE

On Tue, Aug 22, 2017 at 9:08 AM, KULDEEP SARMA wrote: > How sage can be installed in Ubuntu system? I had followed the instructions > but it says no such file > The instructions for decompressing at http://doc.sagemath.org/html/en/installation/binary.html might be out

[sage-support] Re: [GAP Support] Gap 4.8.7

On Wed, Jul 19, 2017 at 9:32 PM, Loretha B wrote: > I'm new to all of this, so I'm sure I'm missing something. > Trying to install 4.8.7 and I'm completely lost. Only vids i see on YT are > for 2.6. > > 4.8.7 installed on Windows, but not appearing in Gimp. > There is

Re: [sage-support] Can i install sage100 + any related retrieve scripts on Red hat linux and on centos.

On Tue, Jul 18, 2017 at 1:46 PM, Mario cilia attard wrote: > > > Can i install sage100 with retrieve database ver 5.4.x + any related > retrieve scripts on Red hat linux and on centos. In addition do you have a > procedure how to install and compile sage on such linux

Re: [sage-support] Re: typo in simplicial complex documentation?

On Sun, Jun 11, 2017 at 3:20 PM, John H Palmieri <jhpalmier...@gmail.com> wrote: > On Sunday, June 11, 2017 at 10:13:52 AM UTC-7, David Joyner wrote: >> >> On Sun, Jun 11, 2017 at 11:30 AM, John H Palmieri >> <jhpalm...@gmail.com> wrote: >> > >> >

Re: [sage-support] Re: typo in simplicial complex documentation?

On Sun, Jun 11, 2017 at 11:30 AM, John H Palmieri <jhpalmier...@gmail.com> wrote: > > > On Saturday, June 10, 2017 at 7:05:49 PM UTC-7, David Joyner wrote: >> >> On Thu, Jun 8, 2017 at 10:49 PM, John H Palmieri <jhpalm...@gmail.com> >> wrote: >> > &

Re: [sage-support] Re: typo in simplicial complex documentation?

On Thu, Jun 8, 2017 at 10:49 PM, John H Palmieri <jhpalmier...@gmail.com> wrote: > > > On Thursday, June 8, 2017 at 5:16:15 PM UTC-7, David Joyner wrote: >> >> Hi all: >> >> This is kind of a newbie question, as I'm not an expert on simplicial >>

[sage-support] typo in simplicial complex documentation?

'm mis-understanding something here or not. - David Joyner -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-support+unsubscr...@googlegroups.com. To

Re: [sage-support] Trouble with Sage assumptions

On Mon, Apr 17, 2017 at 7:53 PM, David White wrote: > Hello, > > I am trying to use Sage in my class with some basic problems about matrices. > Several of the problems in the book are of the form “find all values of k > such that … is consistent” where the … is some linear

Re: [sage-support] Re: how to do this in SAGE

On Tue, Feb 7, 2017 at 7:14 AM, wrote: > > > On Saturday, February 4, 2017 at 4:46:38 PM UTC-6, Dima Pasechnik wrote: >> >> >> >> On Saturday, February 4, 2017 at 8:48:22 PM UTC, valer...@gmail.com wrote: >>> >>> I would like to know the right way to do in SAGE what I am

Re: [sage-support] Sage Cell Server

On Fri, Jan 27, 2017 at 5:28 AM, Ingo Dahn wrote: > Hi, > the Sage Cell server, which I plan to use for a Sage introduction workshop > in the near future, seems to be down, which led me to the question whether I http://sagecell.sagemath.org/ works for me. However, I confirm

Re: [sage-support] Re: About inclusion of sage commands and output on word file/Latex file

On Sat, Dec 24, 2016 at 6:16 AM, NITIN DARKUNDE wrote: > I mean that, if there is any way via which one can get the output on word > and then on latex, in order to include in research paper. I am strongly of > opinion that maths writing must be in latex. > I like the

[sage-support] Re: Grobner bases of ideals

On Wed, Dec 21, 2016 at 7:14 AM, NITIN DARKUNDE wrote: > Respected Sir, > I am trying to find Groebner basis of an ideal in > polynomial ring in 35 variables over GF(2)(As per suggestions earlier, I am > working over GF(2) instead of GF(3)) but I am

[sage-support] Re: Grobner bases of ideals

On Wed, Dec 21, 2016 at 7:28 AM, David Joyner <wdjoy...@gmail.com> wrote: > On Wed, Dec 21, 2016 at 7:14 AM, NITIN DARKUNDE <darkundeni...@gmail.com> > wrote: >> Respected Sir, >> I am trying to find Groebner basis of an ideal in >> polyn

[sage-support] Re: Grobner bases of ideals

On Wed, Dec 21, 2016 at 7:14 AM, NITIN DARKUNDE wrote: > Respected Sir, > I am trying to find Groebner basis of an ideal in > polynomial ring in 35 variables over GF(2)(As per suggestions earlier, I am > working over GF(2) instead of GF(3)) but I am

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