[sage-support] problems with sage notebook and folder sharing on windows

screen, even in full screen mode, is there a way to enlarge the font in the shell? best regards, David --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more

[sage-support] Running Sage with a Red Hat distribution

Dear support team, I would like to install sage on my Machine. I have Red Hat distribution of Linux. Can I get a compiled package? or do I have to build the source myself? Thanks! David --~--~-~--~~~---~--~~ To post to this group, send email to sage-support

[sage-support] Re: Starting out with Notebook

I have just installed SAGE 2.7.2 on an XP_Windows system. The VMplayer starts OK, I type notebook and it gives me 192.168.5.128 as the address to give firefox, which I do, but firefox cannot access that address. What to do? David On Jul 8, 12:18 am, Memo <[EMAIL PROTECTED]> wrote: &g

[sage-support] clearing the denominator of a rational polynomial

ow is an example script with ouput. Thank you. David Stahl Untitled system:sage {{{id=0| R1 = PolynomialRing(RationalField(),9, ["x0","x1","x2","y0","y1","y2","a0","a1","a2"], "lex") x0,x1,x2,y

[sage-support] Re: clearing the denominator of a rational polynomial

Thank you Justin and Carl. Martin Albrecht came up with a solution: sage: Z.numerator().reduce(I2) 0 David On Mar 6, 6:32 pm, Carl Witty <[EMAIL PROTECTED]> wrote: > On Mar 6, 11:20 am, David <[EMAIL PROTECTED]> wrote: > > > I am trying to use the reduce() command o

[sage-support] sage server

Where can I find documentation on setting up a local Sage server? I gather it is possible to duplicate sagenb on a local network, but I can't find any documentation. Thanks, David Department of Mathematics Whitman College --~--~-~--~~~---~--~~ To post to

[sage-support] Re: [david.r.guich...@gmail.com: Re: sage server]

calhost' % n for n in [1..5]] # Go! notebook(**nbopts) Where do ssh keys come into the picture? Is the sage server checking ssh keys somehow? Would it screw things up if I'm connecting through a proxy server? I've been playing with this from off-campus, so I have to g

[sage-support] Re: [david.r.guich...@gmail.com: Re: sage server]

e some standard place to put the home dirs other than home if I do that? How do passwords work? -- David On Oct 27, 8:21 pm, David wrote: > I'm using Dan's script: > > # A script for starting the Sage notebook with the options you like. > # Change the options to your

[sage-support] Re: [david.r.guich...@gmail.com: Re: sage server]

I'm getting the picture now I think. I need a user to run the notebook server, preferably not root. Then I create ssh keys for that user with no passphrase. Then I create authorized_keys files for all the nb? users. Start the server as the server-user, and I should be good? Thanks,

[sage-support] Re: [david.r.guich...@gmail.com: Re: sage server]

n the background, is there a way to kill the server cleanly with "kill"? Really I'd like an init.d start/stop script. John--once I've got this worked out I'll try to write something up. Thanks, David --~--~-~--~~~---~--~~ To post to this gro

[sage-support] Re: [david.r.guich...@gmail.com: Re: sage server]

Do I need one entry in the server pool for each simultaneous connection? Eventually I'll need perhaps 20 simultaneous sessions. -- David --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group,

[sage-support] Re: [david.r.guich...@gmail.com: Re: sage server]

Is there some way to delete user accounts as administrator? When I log in as admin, I see options to create an account and to suspend an account, but not to delete one. -- David --~--~-~--~~~---~--~~ To post to this group, send email to sage-support

[sage-support] zeros of Dedekind zeta functions

For a given irreducible polynomial with integer coefficients, I would like to calculate a list of the first few thousand nontrivial zeros of the corresponding Dedekind zeta function. I would like to do this for lots of different polynomials. In principle, it seems that this can be done with the

[sage-support] factoring polynomials

Is it possible to persuade sage to factor polynomials symbolically over the reals or complex numbers? All I can do so far is get, say, x^2-2 to factor over RR, which gives me decimal approximations. The solve function has no trouble giving me sqrt(2). I'm interested in using sage primarily for calc

[sage-support] Re: factoring polynomials

What I want is for a calculus student to be able to say "factor(x^2+x +1)" or "factor(x^2-x-1)" and get something useful. It would be nice to be able to specify R or C as the relevant field. Using "solve" instead of "factor" gives exactly what I would expect, namely the result of applying the quadr

[sage-support] deleting worksheets

When I delete a worksheet via the notebook in a browser, it no longer shows up, but the numbered directory on the server remains. Is this a feature or a bug? Will removing the directory cause any problems? Is there an easy way to identify deleted worksheets in a shell script? -- To post to this g

[sage-support] Re: deleting worksheets

Thanks, that did it. I never noticed the Trash link. -- David -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage

[sage-support] weird binomial error

rtainly is odd and undesirable behavior. -- David -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org

[sage-support] Re: plots in 3d are not published?

This seems to be some sage-specific applet, not part of jmol. -- David -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/

[sage-support] jmol won't display

nyone run across this? Any ideas? -- David -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL:

[sage-support] Re: jmol won't display

It happens on sagenb.org 4.7.2 and on our internal 4.6 sage server. I'll check the test server when I go to work tomorrow. -- David -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.co

[sage-support] Re: jmol won't display

I just tried test.sagenb.org on a 10.04 machine at home, same problem. All machines are sun java, I think the latest version of java 1.6. I have also tried turning off all firefox extensions, no help. -- David -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe

[sage-support] Re: jmol won't display

No line number. If I click on the url in the error I get the source, but it just leaves me at the top. Here's the error: http://skink.whitman.edu/sage_error.png -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsub

[sage-support] Re: jmol won't display

More information: I get a black square where the jmol figure should be, and the jmol menus are active. -- David -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit

[sage-support] Re: jmol won't display

Here's the console with the trace. I added a "starting ..." message at the beginning of the function, then the trace. http://skink.whitman.edu/sage_error_2.png -- David -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send

[sage-support] Re: jmol won't display

Oh, and yes, "shift return" works fine. -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www

[sage-support] Re: jmol won't display

n 10.04 that is ok in 11.04. I may just have to upgrade, and use chrome until I do. -- David -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http:

[sage-support] Re: jmol won't display

m may be down in jmolApplet? Anyway, if it's canonical's fault it may be pointless to go on. I might try doing an install of firefox straight from mozilla and see what happens. -- David -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from thi

[sage-support] Re: jmol won't display

Well, the mystery persists. The stock firefox direct from mozilla has the same problem. Maybe it really is a 10.04 library. -- David -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For

[sage-support] Re: jmol won't display

going on... I'll check sagenb.org now, but I expect it will be fine. -- David -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups

[sage-support] Re: jmol won't display

Ah, presumably the whole ubuntu 10.04 thing is a red herring; I must be accepting 3rd party cookies on the 11.04 machine. I'll check it when I get home. -- David -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-su

[sage-support] Trouble with Sage assumptions

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 system where k appears. If doing these problems by hand, one would take the determ

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] Trouble with Sage assumptions

Yes, this completely solves my issue. Thanks! On Monday, April 17, 2017 at 8:33:44 PM UTC-4, David Joyner wrote: > > 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 >

[sage-support] typo in simplicial complex documentation?

e that clear. I'm asking if I'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-s

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

On Thu, Jun 8, 2017 at 10:49 PM, John H Palmieri 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 >> complexes. It's also

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

On Sun, Jun 11, 2017 at 11:30 AM, John H Palmieri 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 >> wrote: >> > >> > >> > On Thursday, June 8, 2017 at 5:

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

On Sun, Jun 11, 2017 at 3:20 PM, John H Palmieri 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 >> wrote: >> > >> > >> > On Saturday, June 10, 2017 at 7:05:49

[sage-support] Trouble building development version

I just downloaded the sage-8.0.beta10 tarball, unpacked it, and typed 'make'. After a short interval, I got the error message below. What am I doing wrong? -- David make[1]: Entering directory `/storage/masiao/sage-8.0.beta10/build/make' make -j48 base make[2]: Entering dire

Re: [sage-support] Trouble building development version

This is on a local disk. David On 15 June 2017 at 18:01, Dima Pasechnik wrote: > looks like some NFS-related trouble to me. Can you try building on a local > disk? > > -- > You received this message because you are subscribed to the Google Groups > "sage-support"

Re: [sage-support] Trouble building development version

I don't think so, but it's possible I had some junk environment variables set, because I'd halted compilation of another copy of Sage during the same terminal session. I've started again with a new Sage tarball and clean shell session, and the problem hasn't recurred. T

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 version. I am still > a nov

[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 a GAP associated to GIMP, bu

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 of date, as all the files ar

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 not such what your exact

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 Sage. If you have any p

[sage-support] Re: p-adic matrix norm.

This isn't currently implemented. I've created https://trac.sagemath.org/ticket/24140 to track progress on this suggestion. David > > Best regards > Simon > -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsub

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 that I > haven't found

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) with x-axis scaled by

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. Instead, I get the expected behavior: sage: B. = BooleanPolynomialRing(order='lex') : l15=b+b .

[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 = random_vector(GF(2

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 > -13/4*t + 1 > > However, the s

[sage-support] widescreen jupyter notebook

~/.jupyter/custom/. But this doesn't seem to work in the sage jupyter notebook. Is there somewhere else I am supposed to put that file? thanks david -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this

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" group. > To unsubscribe from

Re: [sage-support] fano's plane

e 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 > wrote: > > Hi, > > how to draw fano's plane in sagemath graph ? >

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 ? > http://doc.sagemath.org/html/en/reference/graphs/sage/graphs/graph_datab

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 graphical https://en.wikipedi

Re: [sage-support] fano matrix

or 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. > > > > > Le 29/0

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), (2,5), (2, 6), :

[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: Abo

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

ational_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 wrote: >> >> Hi: >> >> The question below is posted for Gary McGuire, who is not a subscriber >> to this lis

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

On Fri, Apr 13, 2018 at 11:47 AM, slelievre 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 >> >> For some reason,

Re: [sage-support] Re: 500: Internal server error when I access the data files

informed > > thought.) > > A local CoCalc docker is pretty easy (just paste 2-3 lines and it > works), but the current image is really old. I wish I (or somebody) > had the time to update it (it's 100% open source). I would, but I'm > just too busy with other thing

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 l

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 sage

[sage-support] Find an edge in an undirected graph given two edges

Given an undirected graph g, and two vertices v1 and v2 such that there is an edge connecting them, is there a simple way to figure out which one of (v1, v2) or (v2, v1) will be the edge that occurs in g.edges(labels=False)? -- You received this message because you are subscribed to the Google

[sage-support] Re: Find an edge in an undirected graph given two edges

On Thursday, October 18, 2018 at 9:43:34 AM UTC-4, Jakub Sliacan wrote: > > I thought edges are always listed sorted, i.e. x <= y in (x,y). Can you > produce an example when this is not the case? > > On Thursday, 18 October 2018 15:35:43 UTC+2, David Einstein wrote: >>

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] 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 sympy

[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, N

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 8.

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 https://docs.sympy.org/latest/modules/

[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] Re: CORS problem using sagecell

ewhere, but I'd have to really dig around. In a browser you should see an interactive version. The code for that is right in the source for the page. It's javascript relying on the threejs libraries. -- David -- You received this message because you are subscribed to the Google Group

Re: [sage-support] Viewers in cocalc?

ugh I > think > > the default viewer is threejs. What I'm really looking for is a viewer > that > > lets me display an orthogonal projection instead of perspective. I know > > Three.js is capable of this, but I can't find a way to specify this to > > plot3d. C

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, 2,

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] 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 u

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*), *0*)

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 Ni

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 co

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): retu

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* sum(binomia

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. > > B=ma

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? Any

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 wi

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

On Wed, Oct 9, 2019 at 7:14 AM Dima Pasechnik wrote: > Hi, > > On Wed, Oct 9, 2019 at 6:03 AM George wrote: > >> Hi David, >> >> Thanks for the update and information. >> >> building from source should still work. > Did you try this ? > I did.

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 George

[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 th

[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

Re: [sage-devel] Re: [sage-support] Error in operations of finite field

The issue is that you redefined x after defining K. I wrote more on the ticket. David On Fri, Nov 22, 2019 at 1:57 AM Dima Pasechnik wrote: > This is a variable name clash. Somehow, using 'x' for modulus creates a > problem. > If I instead do > > T.=GF(2)[] > K.

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 visu

[sage-support] Building on Catalina

I am trying to build on OSX Catalina, and everything seems to go well until it builds sagelib, and I get a libpng not found. Everything built nicely a few weeks ago. I am tempted to blame the upgrade to catalina, but I also upgraded hombrew and XCode. Any ideas? Here is the final output from

Re: [sage-support] Building on Catalina

me libpng is > found via pkg-config > Thanks > Dima > > On Thu, Apr 9, 2020 at 10:58 AM David Einstein > wrote: > > > > Here is the config.log. > > > > On Wednesday, April 8, 2020 at 10:32:51 PM UTC-4, Dima Pasechnik wrote: > >> &

Re: [sage-support] Building on Catalina

Apple just gave me a supplemental Catalina update, and now sagelib is building. If this works, I'll attribute it to some Apple problem. On Thursday, April 9, 2020 at 9:37:56 AM UTC-4, David Einstein wrote: > > davideinstein@Davids-MacBook-Pro-3 sage % pkg-config --modversion libpng

Re: [sage-support] Building on Catalina

April 9, 2020 at 6:35:53 AM UTC-7, David Einstein wrote: >> >> I did a brew install pkg-config and was notified that version 0.29.1 was >> already installed, but I could upgrade to 0.29.2, so I did so. Then did a >> `make distclean` and then make and got marginally fur

Re: [sage-support] Building on Catalina

Mac OS 10.15.4 Xcode Version 11.3 beta (11C24b) On Friday, April 10, 2020 at 12:07:09 AM UTC-4, Dima Pasechnik wrote: > > On Fri, Apr 10, 2020 at 5:23 AM David Einstein > wrote: > > > > Sorry, that was a side effect of me running one of the internal scripts > fr

[sage-support] Problem with sagetex and fancyhdr

Hi, I have been trying to use SageTeX in a document where I also use the fancyhdr package, and I am not able to put Sage computations in the header (or the footer). A minimal example follows. \documentclass{article} \usepackage{sagetex} \usepackage{fancyhdr} \begin{document} \begin{sagesilen

[sage-support] Re: Problem with sagetex and fancyhdr

(By the way, I wasn't able to ask at https://ask.sagemath.org/ because my question was detected as spam. So was an answer or comment I tried to post earlier in the day.) -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this

Re: [sage-support] Problem with sagetex and fancyhdr

On Thursday, May 14, 2020 at 7:00:34 PM UTC+2, Dima Pasechnik wrote: > > > > On Thursday, May 14, 2020 at 12:14:36 PM UTC+1, Dima Pasechnik wrote: >> >> Hi David, >> >> On Wed, May 13, 2020 at 11:53 PM David Sevilla <> wrote: >> >> > Hi

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