[sage-support] Re: 6.9rc3 : Ipython notebook seems seriously out of whack.

[HG]

I recompiled sage and sagemanifolds (git), if I start from a terminal 
./sage -n=ipython it works fine. I I make an icon I still got jupiter not 
running. I guess I have to indicate the path somewhere ?
I notice from few months on, that ubunty python is always sending a message 
of security which seems to pertube fonctionning. Kind of "your path can be 
attacked by people bad intentioned ..." Last year I hadn't this.
Well I wait for sage-6.9 deb as I didn't solve this problem (which is only 
anoying).
Henri

Le samedi 10 octobre 2015 21:24:51 UTC+2, Emmanuel Charpentier a écrit :
>
> I just found another nice one with 6.9rc3.
>
> Not only it has problems with $SAGE_ROOT/local/lib/libtinfo* (see here 
> ), but 
> it also spews nonsense :
> In [2]:
> %display simple
>
> solve(x^2+1==0,x,to_poly_solve="force")
> Out[2]:
>
> []
>
>
> Huh ?
>
> Command-line sage :
> sage: solve(x^2+1==0, x)
> [x == -I, x == I]
>
> Sage via emacs :
> sage: solve(x^2+1==0,x)
> [x == -I, x == I]
>
> This is nicely typeset in the emacs window, BTW...).
>
> I also checked that the sage notebook is indemn of this folly...
>
> And, BTW, I also tried Trac#19374  
> with the same result (and no typeset output, by the way !).
>
> I think this should be a blocker...
>
> For the record : this is on a tree resulting from a fresh tarball, where I 
> moved $SAGE_ROOT/local/lib/libtinfo* out of the way, which passes 
> ptestlong, and where I did git trac chechout 19374.
>  
> Any idea/opinion on how to write the ticket ?
>
> HTH,
>
> --
> Emmanuel Charpentier
>
>

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Re: [sage-support] 6.9rc3 : Ipython notebook seems seriously out of whack.

[Jeroen Demeyer]

On 2015-10-11 18:30, HG wrote:

I did the same with sage 6.9 and sagemanifold, some command are working
other not.
I got this message if I try a worksheet done :


Failed to retrieve MathJax from '../nbextensions/mathjax/MathJax.js'


Probably there is something wrong with your installation. Did you run 
"make"?


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[sage-support] Sage on Mac OS X 10.11 (El Capitan)

[Thomas Judson]

I finally had some time to play with Sage on El Capitan.  I haven’t able to 
build Sage even if I disabled SIP.  Perhaps someone smarter than me could 
change the paths and get the job done, but I didn’t want to experiment without 
some idea of what I was doing.

The good news is that I was able to run the binary of Sage 6.8 with no problem. 
 While this is not a permanent solution, it can get me through the day.  Here 
are the instructions for disabling SIP and re-enabling it.

Follow these steps to disable SIP:

• Restart your Mac.
• Before OS X starts up, hold down Command-R and keep it held down 
until you see an Apple icon and a progress bar. Release. This boots you into 
Recovery.
• From the Utilities menu, select Terminal.
• At the prompt type exactly the following and then press Return: 
csrutil disable
• Terminal should display a message that SIP was disabled.
• From the  menu, select Restart.

You can re-enable SIP by following the above steps, but using csrutil enable 
instead.  If you re-enable SIP, Sage will no longer work.

Tom Judson

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Re: [sage-support] 6.9rc3 : Ipython notebook seems seriously out of whack.

[HG]

I did the same with sage 6.9 and sagemanifold, some command are working 
other not.
I got this message if I try a worksheet done :

Failed to retrieve MathJax from '../nbextensions/mathjax/MathJax.js'

Math/LaTeX rendering will be disabled.

If you have administrative access to the notebook server and a working 
internet connection, you can install a local copy of MathJax for offline 
use with the following command on the server at a Python or Jupyter prompt:

>>> from Jupyter.external import mathjax; mathjax.install_mathjax()

This will try to install MathJax into the Jupyter source directory.

If Jupyter is installed to a location that requires administrative 
privileges to write, you will need to make this call as an administrator, 
via 'sudo'.

When you start the notebook server, you can instruct it to disable MathJax 
support altogether:

$ ipython notebook --no-mathjax

which will prevent this dialog from appearing.


Used from git with a new worksheet some commands works

But not very stable at the moment

ubuntu 14.04 fresh install with git sage and sagemanifold


regards

Henri


Le dimanche 11 octobre 2015 15:12:06 UTC+2, Eric Gourgoulhon a écrit :
>
>
> Le dimanche 11 octobre 2015 09:53:49 UTC+2, Emmanuel Charpentier a écrit :
>>
>> And #19374 still doesn't work for me neither in the "old" or the "new" 
>> sheet).
>>
>>
> Works fine for me with the just released sage 6.9 (which includes #19374). 
>
> - System: Ubuntu 14.04 LTS 64bits with libssl-dev package installed
> - Installation of sage 6.9 and launch of Jupyter notebook:
> git clone git://github.com/sagemath/sage.git
> cd sage
> make
> ./sage -n jupyter
>  
> Best wishes,
>
> Eric.
>
>

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[sage-support] How to find the simplicial complex (Independence complex) corresponding to monomial ideal?

[Selva Raja S]

How to find the simplicial complex (Independence complex)  corresponding to 
monomial ideal? 

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Re: [sage-support] 6.9rc3 : Ipython notebook seems seriously out of whack.

[Eric Gourgoulhon]

Le dimanche 11 octobre 2015 09:53:49 UTC+2, Emmanuel Charpentier a écrit :
>
> And #19374 still doesn't work for me neither in the "old" or the "new" 
> sheet).
>
>
Works fine for me with the just released sage 6.9 (which includes #19374). 

- System: Ubuntu 14.04 LTS 64bits with libssl-dev package installed
- Installation of sage 6.9 and launch of Jupyter notebook:
git clone git://github.com/sagemath/sage.git
cd sage
make
./sage -n jupyter
 
Best wishes,

Eric.

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[sage-support] Induced matching number

[Selva Raja S]

*Definition:*
A matching in a graph G is a subgraph consisting of pairwise disjoint 
edges. If the
subgraph is an induced subgraph, the matching is an induced matching.

Induced matching number of G is  the maximum size of induced matching of G.

How to calculate induced matching number?

Please give some hits.

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Re: [sage-support] 6.9rc3 : Ipython notebook seems seriously out of whack.

[Emmanuel Charpentier]

Works for me in a new sheet. Doesn't in a sheet initially created by 
6.9beta1. As far as I can tell, nothing in the sheet explains this 
behaviour...

And #19374 still doesn't work for me neither in the "old" or the "new" 
sheet).

HTH,

--
Emmanuel Charpentier


Le dimanche 11 octobre 2015 07:58:53 UTC+2, tdumont a écrit :
>
> Le 10/10/2015 22:32, Jeroen Demeyer a écrit : 
> > On 2015-10-10 21:24, Emmanuel Charpentier wrote: 
> >> In [2]: 
> >> %display simple 
> >> 
> >> solve(x^2+1==0,x,to_poly_solve="force") 
> >> Out[2]: 
> >> 
> >> [] 
> >> 
> >> 
> >> Huh ? 
> > Works for me... 
> > 
> > In any case, it would be very unlikely that a Sage command actually 
> > gives different output in the command line and in the Jupyter notebook. 
> > 
>
>  >jupyter notebook 
> sage 6.9 rc3 
> This works for me too. 
> t;d. 
>

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