[sage-support] emacs' sage_mode no longer typesets in 6.2 (Linux)

Dear list, I just installed sage 6.2 from source on Deblan testing/amd64 ; I also installed sage_mode. plot(sin(x), [x, -2*pi, 2*pi], figsize=4) gives me the expected plot. but diff(sin(x),x) gives me cos(x) typed, not typeset. Ouch ! For light work, where my sage's use is incidental, I'm u

[sage-support] Re: question about hg (newbie)

On 2014-05-12, J.A. Ketch wrote: > thank you all for the answers > the version of my sage is : Sage Version 6.1.1, Release Date: 2014-02-04, > so I can not use hg. Some sites for the development refers to hg and not to > git. For instance > http://combinat.sagemath.org/doc/thematic_tutorials/tut

[sage-support] Re: Immutable HammingCode?

It may not be such a bad idea to return codevectors which are immutable. I have opened http://trac.sagemath.org/ticket/16338 to discuss this. On Monday, May 12, 2014 11:12:19 PM UTC+8, Gerli Viikmaa wrote: > > Hi, > > Consider the following code (the field is arbitrary in this case) > sage: code

[sage-support] Re: Immutable HammingCode?

The reason why it behaves this way is because the code[0] command regenerates the codeword every time you call it. The reason for doing so is in http://trac.sagemath.org/ticket/13694 So, code[0][0]=1 is indeed changing the vector, but it is not changing the vector that is displayed by the next

[sage-support] Re: reflexive @interact controls (control values update)

On Monday, May 12, 2014 5:27:21 AM UTC-7, Jason Grout wrote: > > Right. I think you're pointing out a problem with the example interact > William posted, which I agree is not very polished. I haven't looked at William's version, only your SageCell translation. I imagine they would suffer from

Re: [sage-support] question about hg (newbie)

thank you all for the answers the version of my sage is : Sage Version 6.1.1, Release Date: 2014-02-04, so I can not use hg. Some sites for the development refers to hg and not to git. For instance http://combinat.sagemath.org/doc/thematic_tutorials/tutorial-how-to-contribute.html, but is old.

[sage-support] Immutable HammingCode?

Hi, Consider the following code (the field is arbitrary in this case) sage: code = codes.HammingCode(2, GF(4,'a')) The codewords (vectors) cannot be changed (note the absence of an error): sage: code[0] (0, 0, 0, 0, 0) sage: code[0][0] = 1 sage: code[0] (0, 0, 0, 0, 0) yet they are not immutable

[sage-support] embedding a pdf in a notebook

Hi I wanted to embed a pdf in a sage notebook. I noticed that if the browser I'm using is able to open pdfs then I can use the html.iframe function to open any pdf that is online is some server. My question is how can I open a pdf store in the DATA directory? I know I could open the file by us

Re: [sage-support] question about hg (newbie)

On Monday, May 12, 2014 6:48:24 AM UTC-4, KnS wrote: > > Hi Ketch, > > What version of Sage have you installed? I ask because Sage has since v6.0 > moved to using GIT for version control... > > --Kannappan. > And more importantly, where did you find documentation still using hg? That will wo

[sage-support] Re: reflexive @interact controls (control values update)

On 5/9/14, 16:41, Nils Bruin wrote: On Friday, May 9, 2014 1:05:23 PM UTC-7, Jason Grout wrote: Right---the interact always is recreating that control, which defaults to the first entry. With a selector, our thinking was that if the item was already selected, then it didn't need to

[sage-support] Re: Sage home page

On 2014-05-09, Irene Hernandez wrote: > I'm not able to see sage like this: > [image: 20_VM_notebook.png] > > I follow the instructions on http://wiki.sagemath.org/SageAppliance and get > this: > >

[sage-support] Re: Sampling elements from a vector space

On 2014-05-12, Gerli Viikmaa wrote: > Thank you - this has sped up the dataset creation 2 times. > > This is the resulting function: > > def generate_data(field, length, n): > data = zero_matrix(field, n, length) > for i in range(n): > for j in range(length): > data

Re: [sage-support] question about hg (newbie)

Hi Ketch, What version of Sage have you installed? I ask because Sage has since v6.0 moved to using GIT for version control... --Kannappan. On Mon, May 12, 2014 at 1:12 AM, J.A. Ketch wrote: > I install sage in ubuntu using the following commands: > > $apt-add-repository -y ppa:aims/sagemath

[sage-support] Travail en réseau

Travailler en réseau avec 3 ordinateurs dont l'une serveur et deux autres clients, on ne peut pas saisir en même temps? -- 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

[sage-support] question about hg (newbie)

I install sage in ubuntu using the following commands: $apt-add-repository -y ppa:aims/sagemath $apt-get update $apt-get install sagemath-upstream-binary I run sage and gave sage: hg_sage.status() NameError Traceback (most recent call last) in () > 1 hg_sage.

[sage-support] Sage home page

I'm not able to see sage like this: [image: 20_VM_notebook.png] I follow the instructions on http://wiki.sagemath.org/SageAppliance and get this: And when i do "Press *Right-Ctrl* and *F2* to re

Re: [sage-support] Re: Sampling elements from a vector space

Hmm, I didn't know about the random_matrix command. So far it works very good for me: %time sequences = random_matrix(GF(4,'a'), *10^6, 36*) # notice the order CPU times: user 0.79 s, sys: 0.00 s, total: 0.79 s Wall time: 0.77 s %time sequences[0] CPU times: user 0.00 s, sys: 0.00 s, total: 0.00

Re: [sage-support] Re: Sampling elements from a vector space

Why not: %time A = random_matrix(GF(4,'a'), 36, 10^6) CPU times: user 568 ms, sys: 12 ms, total: 580 ms Wall time: 578 ms However, getting the rows out takes ages. The reason is that vectors over GF(4) are generic, i.e. noone sat down and wrote up a simple class which implements these vectors a

Re: [sage-support] Jacobian in characteristic 3

Indeed I was (am) only interested in the case of char != 2,3. Its should be easy to add the missing cases, tough. On Friday, May 9, 2014 5:05:30 PM UTC+2, John Cremona wrote: > > It is quite likely that the implementation of Jacobian for plane cubics > does not work in characteristic 3 (at lea

Re: [sage-support] Re: Sampling elements from a vector space

On 12 May 2014 09:56, Gerli Viikmaa wrote: > Thank you - this has sped up the dataset creation 2 times. > > This is the resulting function: > > def generate_data(field, length, n): > data = zero_matrix(field, n, length) > for i in range(n): > for j in range(length): >

Re: [sage-support] Re: Sampling elements from a vector space

Thank you - this has sped up the dataset creation 2 times. This is the resulting function: def generate_data(field, length, n): data = zero_matrix(field, n, length) for i in range(n): for j in range(length): data[i,j] = field.random_element() return data Here the

[sage-support] Re: Jacobian in characteristic 3

I've read through the code and this is indeed the problem. It calls WeierstrassForm from schemes.toric which only implements the short version. Fernando Rodriguez Villegas has some code available for Pari/GP http://www.ma.utexas.edu/users/villegas/cnt/cnt-frames.html in "jacobians" which works

[sage-support] Re: Jacobian in characteristic 3

I've read through the code and this is indeed the problem. It calls WeierstrassForm from schemes.toric which only implements the short version. Fernando Rodriguez Villegas has some code available for Pari/GP http://www.ma.utexas.edu/users/villegas/cnt/cnt-frames.html in "jacobians" which works