[sage-support] Sage cell server file input

2019-10-22 Thread david.guichard
I have a cocalc sage worksheet that reads data from a csv file. Is there 
any way to do this in the single cell server, that is, read data from an 
external file? I'm guessing not, but it would be handy.

Thanks,
David

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Re: [sage-cell] Re: [sage-support] Sage Cell Server

2017-01-27 Thread Andrey Novoseltsev
On Friday, 27 January 2017 17:26:13 UTC-7, William Stein wrote:
>
> Maybe say something about the service we (SageMath, Inc.) does provide 
> right now? 
>

Great point - SageMath, Inc. actually pays for the current GCE part of 
sagecell.sagemath.org - apart from the computational machine it hosts the 
global permalink database. (UTMOST grant should cover 2 years eventually.) 
And of course if account-less computations are not essential, SageMath, 
Inc. provides SageMathCloud!

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Re: [sage-cell] Re: [sage-support] Sage Cell Server

2017-01-27 Thread William Stein
On Fri, Jan 27, 2017 at 4:21 PM, Andrey Novoseltsev  wrote:
> Hello!
>
> Note that we have a dedicated group sage-cell (cc-ed).
>
> At the moment we have GCE for Americas and Madrid for everyone else
> including Europe. There are occasional power problems in the building with
> the Madrid server which are supposed to go away after this last time, we
> will see if that is indeed the case. These servers are responding to
> sagecell.sagemath.org and have valid security certificates. While it is
> unfortunate that there are such interruptions in Madrid, an equivalent
> machine in GCE would cost about $2000/year, so overall I am very happy that
> this hardware is provided to us.
>
> Those who heavily rely on SageMathCell should indeed consider running their
> own servers to make sure there are no downtimes/slowdows at the worst
> possible moment and/or unexpected upgrades that may break some particular
> code. It is possible that SageMath Inc will provide such a service in the
> future.
>

Maybe say something about the service we (SageMath, Inc.) does provide
right now?

> aleph.sagemath.org should not be used or recommended at all.
>
> As for Android app, I can't test it and found it difficult in the past to
> get much feedback on it or figure out who is responsible for it. Personally
> I think it should be removed from the app store since having an unmaintained
> and broken app is bad for reputation.
>
> Thank you,
> Andrey
>
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Re: [sage-support] Sage Cell Server

2017-01-27 Thread Andrey Novoseltsev
Hello!

Note that we have a dedicated group sage-cell (cc-ed).

At the moment we have GCE for Americas and Madrid for everyone else 
including Europe. There are occasional power problems in the building with 
the Madrid server which are supposed to go away after this last time, we 
will see if that is indeed the case. These servers are responding to 
sagecell.sagemath.org and have valid security certificates. While it is 
unfortunate that there are such interruptions in Madrid, an equivalent 
machine in GCE would cost about $2000/year, so overall I am very happy that 
this hardware is provided to us.

Those who heavily rely on SageMathCell should indeed consider running their 
own servers to make sure there are no downtimes/slowdows at the worst 
possible moment and/or unexpected upgrades that may break some particular 
code. It is possible that SageMath Inc will provide such a service in the 
future.

aleph.sagemath.org should not be used or recommended at all.

As for Android app, I can't test it and found it difficult in the past to 
get much feedback on it or figure out who is responsible for it. Personally 
I think it should be removed from the app store since having an 
unmaintained and broken app is bad for reputation.

Thank you,
Andrey

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Re: [sage-support] Sage Cell Server

2017-01-27 Thread kcrisman



> > 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 that 
> the android sagemath app is not working for me either. 
>

Yeah, I think that hasn't been updated recently.  I know Volker had a GSOC 
student working on it at one point, so it should have been working, but I'm 
not sure if Andrey made any changes recently that might have invalidated 
that?

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Re: [sage-support] Sage Cell Server

2017-01-27 Thread Ingo Dahn
I confirm that I can use my worksheets if I replace
https://sagecell.sagemath.org with http://aleph.sagemath.org. However when
I call the aleph server with https I get an net::ERR_INSECURE_RESPONSE
error which may be a problem if I make the call from within our LMS which
blocks all unsecured connections.

Ingo Dahn  schrieb am Fr., 27. Jan. 2017 um 14:14 Uhr:

> It is http://sagecell.sagemath.org/ that I call and that times out. The
> real problem is that I use a set of prepared HTML pages with embedded calls
> to this URL and I would like to avoid having to change them shortly before
> a workshop. From https://wiki.sagemath.org/Infrastructure I see that
> there is a server at Frankfurt University in Germany to which I am probably
> routed as I am nearby.Is there any admin contact at Frankfurt which I may
> call for support?
>
> Ingo
>
> slelievre  schrieb am Fr., 27. Jan. 2017 um
> 12:55 Uhr:
>
> On my side, connection to
>
> http://sagecell.sagemath.org
>
> times out.
>
> Requests to sagecell.sagemath.org are sent to several different servers,
> depending on where you connect from. There are servers in two universities
> in Spain and Germany (I imagine all Europe requests are routed there) and
> one server at Google Compute Engine (I imagine all North America requests
> are routed there).
>
> See https://wiki.sagemath.org/Infrastructure
>
> I don't know if you can bypass the routing algorithm and decide to connect
> to a given sagecell server.
>
> Your workaround for now is that the aleph.sagemath.org server seems to be
> working for all.
>
> Samuel
>
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Re: [sage-support] Sage Cell Server

2017-01-27 Thread Ingo Dahn
It is http://sagecell.sagemath.org/ that I call and that times out. The
real problem is that I use a set of prepared HTML pages with embedded calls
to this URL and I would like to avoid having to change them shortly before
a workshop. From https://wiki.sagemath.org/Infrastructure I see that there
is a server at Frankfurt University in Germany to which I am probably
routed as I am nearby.Is there any admin contact at Frankfurt which I may
call for support?

Ingo

slelievre  schrieb am Fr., 27. Jan. 2017 um
12:55 Uhr:

> On my side, connection to
>
> http://sagecell.sagemath.org
>
> times out.
>
> Requests to sagecell.sagemath.org are sent to several different servers,
> depending on where you connect from. There are servers in two universities
> in Spain and Germany (I imagine all Europe requests are routed there) and
> one server at Google Compute Engine (I imagine all North America requests
> are routed there).
>
> See https://wiki.sagemath.org/Infrastructure
>
> I don't know if you can bypass the routing algorithm and decide to connect
> to a given sagecell server.
>
> Your workaround for now is that the aleph.sagemath.org server seems to be
> working for all.
>
> Samuel
>
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Re: [sage-support] Sage Cell Server

2017-01-27 Thread slelievre
On my side, connection to

http://sagecell.sagemath.org 

times out.

Requests to sagecell.sagemath.org are sent to several different servers,
depending on where you connect from. There are servers in two universities
in Spain and Germany (I imagine all Europe requests are routed there) and
one server at Google Compute Engine (I imagine all North America requests
are routed there).

See https://wiki.sagemath.org/Infrastructure

I don't know if you can bypass the routing algorithm and decide to connect
to a given sagecell server.

Your workaround for now is that the aleph.sagemath.org server seems to be
working for all.

Samuel

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Re: [sage-support] Sage Cell Server

2017-01-27 Thread David Joyner
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 that
the android sagemath app is not working for me either. There is info
on setting up your own sagecell server here:
https://github.com/sagemath/sagecell




> can set up my own Sage cell server when I install Sage on my server.
> B.t.w the Android Sage app on the Google PlayStore doesn't seem to be
> working - no reaction when evaluating a cell, even for the provided
> examples, but that's not as important for me as long as I can access the
> cell server.
>
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[sage-support] Sage Cell Server

2017-01-27 Thread Ingo Dahn
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 can set up my own Sage cell server when I install Sage on my server. 
B.t.w the Android Sage app on the Google PlayStore doesn't seem to be 
working - no reaction when evaluating a cell, even for the provided 
examples, but that's not as important for me as long as I can access the 
cell server.

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[sage-support] Sage cell server has no result

2014-01-16 Thread y tan
Hi,

I successfully install sage cell follow this 
direction http://ufrmeca.univ-lyon1.fr/~buffat/sagecell.html
now my sage notebook working correctly.
The sage cell server start correctly and show on the browser but give me no 
result no mater what the input is.
I believe is some user permission problem but I don't know how to fix it. 
Need advice . Thanks,

OS ubuntu 12.04 server


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[sage-support] Sage Cell Server and Modules

2013-07-18 Thread Pedro Cruz
Dear Sage Cell users and authors,

We are planning to embed
http://sagecell.sagemath.org/
at our local page "P".

What is the best way to incorporate a *simple* sage/python module for all 
calculations using our local sage page "P" ?

Thank you,
Pedro



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