[sage-support] Re: Easy way to combine fractions in Sage?

[Ralf Stephan]

On Monday, September 12, 2016 at 9:26:34 PM UTC+2, saad khalid wrote:
>
> I couldn't find a better solution, so I made this:
>
> https://trac.sagemath.org/ticket/21477
>

That has nothing to do with combining fractions. Also, numerics alone in the
denominator can in principle not be combined because the resulting 
expression
will be immediately expanded again (try it).

The ex.combine() member function will combine symbolic denominators.

-- 
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 post to this group, send email to sage-support@googlegroups.com.
Visit this group at https://groups.google.com/group/sage-support.
For more options, visit https://groups.google.com/d/optout.

[sage-support] Re: Computation has been running for a very long time...

[saad khalid]

I tried checking the process, here was the output:

~/Saad Khalid$ ps x | grep -w 12616
12616 pts/22   Ssl+   0:00 /usr/bin/M2-binary --no-debug --no-readline --silent 
-e ZZ#{Standard,Core#"private dictionary"#"InputPrompt"} = lineno -> 
"_EGAS_ :
";ZZ#{Standard,Core#"private dictionary"#"InputContinuationPrompt"} = 
lineno -> "_EGAS_ : ";printWidth = 0;lineNumber = 10^9;
13296 pts/24   S+ 0:00 grep --color=auto -w

Not really sure what it means.

I also posted the question in the sage-cloud board


-- 
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 post to this group, send email to sage-support@googlegroups.com.
Visit this group at https://groups.google.com/group/sage-support.
For more options, visit https://groups.google.com/d/optout.

[sage-support] How does @interact work in Sage 7.3 Jupiter notebook?

[ahauskne...@umassd.edu]

Hi,

the Interact command does not seem to be working in Sage 7.3 Jupyer 
Notebook!


Here is the code from a notebook cell:
-
from ipywidgets import interact, interactive, fixed
import ipywidgets as widgets


def plotNthRoots(n):
# Create a unit circle
c = circle((0,0), radius=1, rgbcolor=(1,0,0))
# Combine the circle with points on the circle representing the roots 
of unity
theta = 2.0*pi/float(n)
p = c + point([(cos(t), sin(t)) for t in srange(0, 2.0*pi, 
theta)],frame=True,size=60)
# Add in vectors from the origin to the roots of unity.
p = p + sum([arrow2d( (0,0), (cos(t),sin(t)) ) for t in srange(0, 
2.0*pi, theta)])
show(p)
print("The Principle %d-Root: (%5.3f)+(%5.3f)I"%(n,cos(theta), 
sin(theta)) )


@interact
def _(n=(1,20)):
plotNthRoots(n)
-

Rather than creating a slider, it generates a plot for the case n=20.

Any suggestions?

Adam Hausknecht

-- 
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 post to this group, send email to sage-support@googlegroups.com.
Visit this group at https://groups.google.com/group/sage-support.
For more options, visit https://groups.google.com/d/optout.

[sage-support] Re: win 10, virtualbox 5.1.4, sage 7.3

[multiscalar]

I should correct that, the size of the .vdi file is in fact ~20GBytes not 8.

On Monday, September 12, 2016 at 2:00:06 PM UTC-7, multiscalar wrote:
>
> I let VirtualBox do dynamic allocation for the disk. I installed Centos7 
> development/creative station and built sage7.3 from source. 
> The size of the .vdi file is ~8GBytes. That shouldn't be too surprising; 
> if you compare that to the .ova file (~3GBytes) the vdi is bigger
> but still comparable...they essentially do the same thing.
>
> On Monday, September 12, 2016 at 7:02:06 AM UTC-7, Dima Pasechnik wrote:
>>
>>
>>
>> On Sunday, September 11, 2016 at 7:38:13 PM UTC, multiscalar wrote:
>>>
>>> You might want to consider just installing  a linux virtual machine and 
>>> building sage from source there.
>>> It's a little bit more work than importing an ova, but longterm it's 
>>> more usable. The linux OS + built sage
>>> should fit in 10GBytes, so you can in principle have several 
>>> versions 
>>>
>> 10GB is wildly optimistic.
>> With all the tools you need to build/run Sage, you probably would need 
>> that much for them, excluding Sage.
>> I'd reserve at least 30 to 50 GB...
>>
>>
>>>
>>> On Thursday, September 8, 2016 at 11:19:33 AM UTC-7, Temperus Tempus 
>>> wrote:

 Hello,

 I´ve installed virtualbox 5.1.4 on win10 system and imported sage 
 7.3.ova.
 When I try to start sage with the green arrow at virtual box it comes 
 until the sage promt, where I have to login.
 When I login with sage, pw: sage, I get: Last login: ..." and prompt.
 The notebook didn´t start automatically.
 So I try to start it with "./ notebook-browser (as I found out with ls 
 command).
 But I only get: (chromium-browser:1622): Gtk-WARNING **: cannot open 
 display:
 What´s the problem? Couldn´t find any help in the net.

 Thanks in advance.



-- 
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 post to this group, send email to sage-support@googlegroups.com.
Visit this group at https://groups.google.com/group/sage-support.
For more options, visit https://groups.google.com/d/optout.

[sage-support] Re: win 10, virtualbox 5.1.4, sage 7.3

[multiscalar]

I let VirtualBox do dynamic allocation for the disk. I installed Centos7 
development/creative station and built sage7.3 from source. 
The size of the .vdi file is ~8GBytes. That shouldn't be too surprising; if 
you compare that to the .ova file (~3GBytes) the vdi is bigger
but still comparable...they essentially do the same thing.

On Monday, September 12, 2016 at 7:02:06 AM UTC-7, Dima Pasechnik wrote:
>
>
>
> On Sunday, September 11, 2016 at 7:38:13 PM UTC, multiscalar wrote:
>>
>> You might want to consider just installing  a linux virtual machine and 
>> building sage from source there.
>> It's a little bit more work than importing an ova, but longterm it's more 
>> usable. The linux OS + built sage
>> should fit in 10GBytes, so you can in principle have several versions 
>>
> 10GB is wildly optimistic.
> With all the tools you need to build/run Sage, you probably would need 
> that much for them, excluding Sage.
> I'd reserve at least 30 to 50 GB...
>
>
>>
>> On Thursday, September 8, 2016 at 11:19:33 AM UTC-7, Temperus Tempus 
>> wrote:
>>>
>>> Hello,
>>>
>>> I´ve installed virtualbox 5.1.4 on win10 system and imported sage 
>>> 7.3.ova.
>>> When I try to start sage with the green arrow at virtual box it comes 
>>> until the sage promt, where I have to login.
>>> When I login with sage, pw: sage, I get: Last login: ..." and prompt.
>>> The notebook didn´t start automatically.
>>> So I try to start it with "./ notebook-browser (as I found out with ls 
>>> command).
>>> But I only get: (chromium-browser:1622): Gtk-WARNING **: cannot open 
>>> display:
>>> What´s the problem? Couldn´t find any help in the net.
>>>
>>> Thanks in advance.
>>>
>>>

-- 
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 post to this group, send email to sage-support@googlegroups.com.
Visit this group at https://groups.google.com/group/sage-support.
For more options, visit https://groups.google.com/d/optout.

[sage-support] Re: Easy way to combine fractions in Sage?

[saad khalid]

I couldn't find a better solution, so I made this:

https://trac.sagemath.org/ticket/21477

-- 
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 post to this group, send email to sage-support@googlegroups.com.
Visit this group at https://groups.google.com/group/sage-support.
For more options, visit https://groups.google.com/d/optout.

[sage-support] Re: Cosine function erro

[leif]

Shaun Ault wrote:
> Dear sage-support,
> 
> I'm getting the following unexpected results:
> 
> sage: cos(2*pi*4/7).n()
> 0.900968867902419
> sage: cos((2*pi*4/7).n())
> -0.900968867902419
> 
> What is going on here?  Clearly the result should be negative both times.

Which version?  (Works for me in 7.3.)


-leif


-- 
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 post to this group, send email to sage-support@googlegroups.com.
Visit this group at https://groups.google.com/group/sage-support.
For more options, visit https://groups.google.com/d/optout.

[sage-support] Cosine function erro

[Shaun Ault]

Dear sage-support,

I'm getting the following unexpected results:

sage: cos(2*pi*4/7).n()
0.900968867902419
sage: cos((2*pi*4/7).n())
-0.900968867902419

What is going on here?  Clearly the result should be negative both times.

Thanks,
Shaun Ault

-- 
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 post to this group, send email to sage-support@googlegroups.com.
Visit this group at https://groups.google.com/group/sage-support.
For more options, visit https://groups.google.com/d/optout.

[sage-support] Computation has been running for a very long time...

[William Stein]

On Monday, September 12, 2016, saad khalid > wrote:

> The reason i didn't run it in a terminal is because the terminal would
> stop working after 25 hours(I have 25 hours of inactive time) and, while I
> know how to keep a sage worksheet active, I don't know how to keep a
> terminal active without interrupting the calculation. I will try running it
> in the SMC terminal, however.
>


You will get better SMC specific support on the SMC mailing lists or at
h...@sagemath.com...



>
>>
>>
>> --
> 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 post to this group, send email to sage-support@googlegroups.com.
> Visit this group at https://groups.google.com/group/sage-support.
> For more options, visit https://groups.google.com/d/optout.
>


-- 
Sent from my massive iPhone 6 plus.

-- 
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 post to this group, send email to sage-support@googlegroups.com.
Visit this group at https://groups.google.com/group/sage-support.
For more options, visit https://groups.google.com/d/optout.

Re: [sage-support] logged out

[William Stein]

On Monday, September 12, 2016, Anton Sherwood  wrote:

> On Monday, September 12, 2016 at 5:59:42 AM UTC, Anton Sherwood wrote:
>>
>>> Oh heck. I used my local Sage "server" yesterday, and (thinking
>>> nothing of it) signed out before shutting it down; and now it wants
>>> me to sign in. I don't remember ever signing in before, and have no
>>> idea what it thinks my username is!
>>>
>>
> On 2016-9-12 06:58, Dima Pasechnik wrote:
>
>> admin
>> (most probably, IMHO)
>>
>
> And now when I fire it up I'm logged in, apparently as admin.
> Funny old world.
>
> I wonder whether there's a password.


It's passed into the browser via the URL on opening.


>
> --
> *\\*  Anton Sherwood  *\\*  www.bendwavy.org
>
> --
> 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 post to this group, send email to sage-support@googlegroups.com.
> Visit this group at https://groups.google.com/group/sage-support.
> For more options, visit https://groups.google.com/d/optout.
>


-- 
Sent from my massive iPhone 6 plus.

-- 
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 post to this group, send email to sage-support@googlegroups.com.
Visit this group at https://groups.google.com/group/sage-support.
For more options, visit https://groups.google.com/d/optout.

Re: [sage-support] Interface to lie broken in sage 7.3?

[Vincent Delecroix]

Indeed, the problem has been fixed recently (and the fix will appear in 7.4)

https://trac.sagemath.org/ticket/21359

A workaround for sage-7.3 to start lie is to do

 $ sage -sh -c $SAGE_LOCAL/lib/LiE/Lie.exe

If you want to make it work inside Sage you need to edit the file 
/home/baer/Sage/sage-7.3/local/bin/lie by hand. Normally it contains the 
two lines


LD=/home/baer/Sage/sage-7.3/local/var/tmp/sage/build/lie-2.2.2/src
exec $LD/Lie.exe initfile $LD

You should change the first line to

LD=$SAGE_LOCAL/lib/LiE/

Best,
Vincent

On 12/09/16 17:37, Christian Bär wrote:

In my install

$ sage -sh -c "which lie"
gives
/home/baer/Sage/sage-7.3/local/bin/lie

and

$ sage -sh -c lie
gives
/home/baer/Sage/sage-7.3/local/bin/lie: Zeile 4:
/home/baer/Sage/sage-7.3/local/var/tmp/sage/build/lie-2.2.2/src/Lie.exe:
Datei oder Verzeichnis nicht gefunden

In SageMathCloud

$ sage -sh -c "which lie"
gives
/projects/sage/sage-7.3/local/bin/lie

and

$ sage -sh -c lie
gives
/projects/sage/sage-7.3/local/bin/lie: 4: exec:
/projects/sage/sage-7.3/local/var/tmp/sage/build/lie-2.2.2/src/Lie.exe: not
found

In constrast, in my old sage 7.2 install the command
$ sage -sh -c lie
does start lie.

Christian




--
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 post to this group, send email to sage-support@googlegroups.com.
Visit this group at https://groups.google.com/group/sage-support.
For more options, visit https://groups.google.com/d/optout.

[sage-support] Re: Interface to lie broken in sage 7.3?

[leif]

Christian Bär wrote:
> In my install
> 
> $ sage -sh -c "which lie"
> gives
> /home/baer/Sage/sage-7.3/local/bin/lie
> 
> and
> 
> $ sage -sh -c lie
> gives
> /home/baer/Sage/sage-7.3/local/bin/lie: Zeile 4:
> /home/baer/Sage/sage-7.3/local/var/tmp/sage/build/lie-2.2.2/src/Lie.exe:
> Datei oder Verzeichnis nicht gefunden
> 
> In SageMathCloud
> 
> $ sage -sh -c "which lie"
> gives
> /projects/sage/sage-7.3/local/bin/lie
> 
> and
> 
> $ sage -sh -c lie
> gives
> /projects/sage/sage-7.3/local/bin/lie: 4: exec:
> /projects/sage/sage-7.3/local/var/tmp/sage/build/lie-2.2.2/src/Lie.exe:
> not found
> 
> In constrast, in my old sage 7.2 install the command
> $ sage -sh -c lie
> does start lie.


Recent fix from John Palmieri (merged into 7.4.beta4 I think):


diff --git a/build/pkgs/lie/spkg-install b/build/pkgs/lie/spkg-install
index 3668c4c..282a127 100755
--- a/build/pkgs/lie/spkg-install
+++ b/build/pkgs/lie/spkg-install
@@ -27,7 +27,7 @@ $MAKE CC="$CC" || die "Error building LiE. Did you
install bison?"
 # "install" the LiE package by moving over the complete build
 # directory to $SAGE_LOCAL/lib/lie
 cd ..
-sed -e "s'$PWD/LiE'$SAGE_LOCAL/lib/LiE'" src/lie > src/lie~
+sed -e "s'$PWD/src'$SAGE_LOCAL/lib/LiE'" src/lie > src/lie~
 mv src/lie~ src/lie
 chmod +x src/lie
 rm -rf "$SAGE_LOCAL"/lib/lie # clean up old versions


Someone^TM borked it in May, apparently.


Presumably simpler to just edit the broken script in
$SAGE_ROOT/local/bin than to patch and reinstall LiE...

(The real executable apparently is somewhere below
$SAGE_ROOT/local/lib/LiE/.)


-leif


-- 
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 post to this group, send email to sage-support@googlegroups.com.
Visit this group at https://groups.google.com/group/sage-support.
For more options, visit https://groups.google.com/d/optout.

Re: [sage-support] Re: logged out

[Anton Sherwood]

On Monday, September 12, 2016 at 5:59:42 AM UTC, Anton Sherwood wrote:

Oh heck. I used my local Sage "server" yesterday, and (thinking
nothing of it) signed out before shutting it down; and now it wants
me to sign in. I don't remember ever signing in before, and have no
idea what it thinks my username is!


On 2016-9-12 06:58, Dima Pasechnik wrote:

admin
(most probably, IMHO)


And now when I fire it up I'm logged in, apparently as admin.
Funny old world.

I wonder whether there's a password.

--
*\\*  Anton Sherwood  *\\*  www.bendwavy.org

--
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 post to this group, send email to sage-support@googlegroups.com.
Visit this group at https://groups.google.com/group/sage-support.
For more options, visit https://groups.google.com/d/optout.

[sage-support] Re: Computation has been running for a very long time...

[saad khalid]

The reason i didn't run it in a terminal is because the terminal would stop 
working after 25 hours(I have 25 hours of inactive time) and, while I know 
how to keep a sage worksheet active, I don't know how to keep a terminal 
active without interrupting the calculation. I will try running it in the 
SMC terminal, however. 

-- 
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 post to this group, send email to sage-support@googlegroups.com.
Visit this group at https://groups.google.com/group/sage-support.
For more options, visit https://groups.google.com/d/optout.

Re: [sage-support] Interface to lie broken in sage 7.3?

[Christian Bär]

In my install

$ sage -sh -c "which lie"
gives
/home/baer/Sage/sage-7.3/local/bin/lie

and 

$ sage -sh -c lie 
gives
/home/baer/Sage/sage-7.3/local/bin/lie: Zeile 4: 
/home/baer/Sage/sage-7.3/local/var/tmp/sage/build/lie-2.2.2/src/Lie.exe: 
Datei oder Verzeichnis nicht gefunden

In SageMathCloud

$ sage -sh -c "which lie"
gives
/projects/sage/sage-7.3/local/bin/lie

and 

$ sage -sh -c lie 
gives
/projects/sage/sage-7.3/local/bin/lie: 4: exec: 
/projects/sage/sage-7.3/local/var/tmp/sage/build/lie-2.2.2/src/Lie.exe: not 
found

In constrast, in my old sage 7.2 install the command
$ sage -sh -c lie
does start lie.

Christian


-- 
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 post to this group, send email to sage-support@googlegroups.com.
Visit this group at https://groups.google.com/group/sage-support.
For more options, visit https://groups.google.com/d/optout.

[sage-support] Re: Computation has been running for a very long time...

[Dima Pasechnik]

On Monday, September 12, 2016 at 2:38:48 PM UTC, leif wrote:
>
> saad khalid wrote: 
> > Hello everyone: 
> > 
> > I ran a computation on SMC that i figured would take some time. I'm 
> > generating 8000 groups, I believe, which is a slow process. Generating 
> > one group can take a few seconds, so I would expect generating 8000 
> > groups to take 10-ish hours. However, this computation has been running 
> > for over 70 hours now, I believe. I keep the page from stopping by 
> > running some simple arithmetic on the side, so that the page stays 
> > active. It still says it is running but I can't tell if it actually is. 
> > The RAM usage on the page used to be going up but now it has stopped at 
> > 1198mb. Is there any way for me to know if the computation is still 
> > active, or how far it has gotten, without interrupting it? 
>
> Get the PID and look at the process (e.g. "ps x | grep -w N" in a 
> shell, where N is the PID). 
>
> I guess 
>
> sage: macaulay2.pid() 
>
> gives you the PID. 
>
>
> There are certainly smarter ways on SMC. 
>

the smartest would be to run this directly in Macaulay2 (in SMC terminal).
Otherwise you never know whether it's process communication that has failed 
for you here,
or not.


>
> -leif 
>
> > 
> > Here is the code I ran: 
> > 
> > | 
> > reset() 
> > macaulay2.eval(""" 
> > K = toField(QQ[zet]/(zet^8 - zet^6 + zet^4 - zet^2 + 1)) 
> > needsPackage "InvariantRing" 
> > A = [] 
> > B = [] 
> > C = [] 
> > for a1 from 1 to 20 do (for a2 from 1 to 20 do (for a3 from 1 to 20 do A 
> > = A|[matrix{{zet^(a1),0,0},{0,zet^(a2),0},{0,0,zet^(a3)}}] ) ) 
> > for i from 0 to (#A-1) do B = B|[generateGroup({A#i},K)] 
> > for j from 0 to (#A-1) do C = C|[toString molienSeries B#j] 
> > """) 
> > | 
>
>
>

-- 
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 post to this group, send email to sage-support@googlegroups.com.
Visit this group at https://groups.google.com/group/sage-support.
For more options, visit https://groups.google.com/d/optout.

[sage-support] Re: Computation has been running for a very long time...

[leif]

saad khalid wrote:
> Hello everyone:
> 
> I ran a computation on SMC that i figured would take some time. I'm
> generating 8000 groups, I believe, which is a slow process. Generating
> one group can take a few seconds, so I would expect generating 8000
> groups to take 10-ish hours. However, this computation has been running
> for over 70 hours now, I believe. I keep the page from stopping by
> running some simple arithmetic on the side, so that the page stays
> active. It still says it is running but I can't tell if it actually is.
> The RAM usage on the page used to be going up but now it has stopped at
> 1198mb. Is there any way for me to know if the computation is still
> active, or how far it has gotten, without interrupting it?

Get the PID and look at the process (e.g. "ps x | grep -w N" in a
shell, where N is the PID).

I guess

sage: macaulay2.pid()

gives you the PID.


There are certainly smarter ways on SMC.


-leif

> 
> Here is the code I ran:
> 
> |
> reset()
> macaulay2.eval("""
> K = toField(QQ[zet]/(zet^8 - zet^6 + zet^4 - zet^2 + 1))
> needsPackage "InvariantRing"
> A = []
> B = []
> C = []
> for a1 from 1 to 20 do (for a2 from 1 to 20 do (for a3 from 1 to 20 do A
> = A|[matrix{{zet^(a1),0,0},{0,zet^(a2),0},{0,0,zet^(a3)}}] ) )
> for i from 0 to (#A-1) do B = B|[generateGroup({A#i},K)]
> for j from 0 to (#A-1) do C = C|[toString molienSeries B#j]
> """)
> |


-- 
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 post to this group, send email to sage-support@googlegroups.com.
Visit this group at https://groups.google.com/group/sage-support.
For more options, visit https://groups.google.com/d/optout.

[sage-support] Re: Computation has been running for a very long time...

[Dima Pasechnik]

On Monday, September 12, 2016 at 2:19:50 PM UTC, saad khalid wrote:
>
> Hello everyone:
>
> I ran a computation on SMC that i figured would take some time. I'm 
> generating 8000 groups, I believe, which is a slow process. Generating one 
> group can take a few seconds, so I would expect generating 8000 groups to 
> take 10-ish hours. However, this computation has been running for over 70 
> hours now, I believe. I keep the page from stopping by running some simple 
> arithmetic on the side, so that the page stays active. It still says it is 
> running but I can't tell if it actually is. The RAM usage on the page used 
> to be going up but now it has stopped at 1198mb. Is there any way for me to 
> know if the computation is still active, or how far it has gotten, without 
> interrupting it? 
>
> Here is the code I ran:
>
> reset()
> macaulay2.eval("""
> K = toField(QQ[zet]/(zet^8 - zet^6 + zet^4 - zet^2 + 1))
> needsPackage "InvariantRing"
> A = []
> B = []
> C = []
> for a1 from 1 to 20 do (for a2 from 1 to 20 do (for a3 from 1 to 20 do A = 
> A|[matrix{{zet^(a1),0,0},{0,zet^(a2),0},{0,0,zet^(a3)}}] ) )
> for i from 0 to (#A-1) do B = B|[generateGroup({A#i},K)]
> for j from 0 to (#A-1) do C = C|[toString molienSeries B#j]
> """)
>
it's essentially a question about Macaulay2 computation.
perhaps it should go to the appropriate forum.
 

-- 
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 post to this group, send email to sage-support@googlegroups.com.
Visit this group at https://groups.google.com/group/sage-support.
For more options, visit https://groups.google.com/d/optout.

[sage-support] Computation has been running for a very long time...

[saad khalid]

Hello everyone:

I ran a computation on SMC that i figured would take some time. I'm 
generating 8000 groups, I believe, which is a slow process. Generating one 
group can take a few seconds, so I would expect generating 8000 groups to 
take 10-ish hours. However, this computation has been running for over 70 
hours now, I believe. I keep the page from stopping by running some simple 
arithmetic on the side, so that the page stays active. It still says it is 
running but I can't tell if it actually is. The RAM usage on the page used 
to be going up but now it has stopped at 1198mb. Is there any way for me to 
know if the computation is still active, or how far it has gotten, without 
interrupting it? 

Here is the code I ran:

reset()
macaulay2.eval("""
K = toField(QQ[zet]/(zet^8 - zet^6 + zet^4 - zet^2 + 1))
needsPackage "InvariantRing"
A = []
B = []
C = []
for a1 from 1 to 20 do (for a2 from 1 to 20 do (for a3 from 1 to 20 do A = 
A|[matrix{{zet^(a1),0,0},{0,zet^(a2),0},{0,0,zet^(a3)}}] ) )
for i from 0 to (#A-1) do B = B|[generateGroup({A#i},K)]
for j from 0 to (#A-1) do C = C|[toString molienSeries B#j]
""")


-- 
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 post to this group, send email to sage-support@googlegroups.com.
Visit this group at https://groups.google.com/group/sage-support.
For more options, visit https://groups.google.com/d/optout.

[sage-support] Re: win 10, virtualbox 5.1.4, sage 7.3

[Dima Pasechnik]

On Sunday, September 11, 2016 at 7:38:13 PM UTC, multiscalar wrote:
>
> You might want to consider just installing  a linux virtual machine and 
> building sage from source there.
> It's a little bit more work than importing an ova, but longterm it's more 
> usable. The linux OS + built sage
> should fit in 10GBytes, so you can in principle have several versions 
>
10GB is wildly optimistic.
With all the tools you need to build/run Sage, you probably would need that 
much for them, excluding Sage.
I'd reserve at least 30 to 50 GB...
   

>
> On Thursday, September 8, 2016 at 11:19:33 AM UTC-7, Temperus Tempus wrote:
>>
>> Hello,
>>
>> I´ve installed virtualbox 5.1.4 on win10 system and imported sage 7.3.ova.
>> When I try to start sage with the green arrow at virtual box it comes 
>> until the sage promt, where I have to login.
>> When I login with sage, pw: sage, I get: Last login: ..." and prompt.
>> The notebook didn´t start automatically.
>> So I try to start it with "./ notebook-browser (as I found out with ls 
>> command).
>> But I only get: (chromium-browser:1622): Gtk-WARNING **: cannot open 
>> display:
>> What´s the problem? Couldn´t find any help in the net.
>>
>> Thanks in advance.
>>
>>

-- 
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 post to this group, send email to sage-support@googlegroups.com.
Visit this group at https://groups.google.com/group/sage-support.
For more options, visit https://groups.google.com/d/optout.

[sage-support] Re: logged out

[Dima Pasechnik]

On Monday, September 12, 2016 at 5:59:42 AM UTC, Anton Sherwood wrote:
>
> Oh heck.  I used my local Sage "server" yesterday, and (thinking nothing 
> of it) signed out before shutting it down; and now it wants me to sign 
> in.  I don't remember ever signing in before, and have no idea what it 
> thinks my username is! 
>
admin
(most probably, IMHO) 

>
> -- 
> *\\*  Anton Sherwood  *\\*  www.bendwavy.org 
>

-- 
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 post to this group, send email to sage-support@googlegroups.com.
Visit this group at https://groups.google.com/group/sage-support.
For more options, visit https://groups.google.com/d/optout.

Re: [sage-support] Interface to lie broken in sage 7.3?

[Vincent Delecroix]

Before more investigation could you reproduce the output of the 
following command


  $ sage -sh -c "which lie"

and see whether the following does start lie

  $ sage -sh -c lie

Vincent


On 12/09/16 11:14, Christian Bär wrote:

In sage 7.2 the call lie(1+1) yields 2 as it should. In my sage 7.3 install
however I get "TypeError: unable to start LiE" even though the optinal LiE
package is installed. The same problem occurs in the SageMathCloud. Any
ideas?

The full output in sage 7.3 is:

sage: lie(1+1)
---
TypeError Traceback (most recent call last)
 in ()
> 1 lie(Integer(1)+Integer(1))

/home/baer/bin/Sage/sage-7.3/local/lib/python2.7/site-packages/sage/interfaces/interface.pyc
in __call__(self, x, name)
244 return cls(self, x, name=name)
245 try:
--> 246 return self._coerce_from_special_method(x)
247 except TypeError:
248 raise

/home/baer/bin/Sage/sage-7.3/local/lib/python2.7/site-packages/sage/interfaces/interface.pyc
in _coerce_from_special_method(self, x)
272 return (x.__getattribute__(s))(self)
273 except AttributeError:
--> 274 return self(x._interface_init_())
275
276 def _coerce_impl(self, x, use_special=True):

/home/baer/bin/Sage/sage-7.3/local/lib/python2.7/site-packages/sage/interfaces/interface.pyc
in __call__(self, x, name)
242
243 if isinstance(x, six.string_types):
--> 244 return cls(self, x, name=name)
245 try:
246 return self._coerce_from_special_method(x)

/home/baer/bin/Sage/sage-7.3/local/lib/python2.7/site-packages/sage/interfaces/expect.pyc
in __init__(self, parent, value, is_name, name)
   1380 except (RuntimeError, ValueError) as x:
   1381 self._session_number = -1
-> 1382 raise_(TypeError, x, sys.exc_info()[2])
   1383 except BaseException:
   1384 self._session_number = -1

/home/baer/bin/Sage/sage-7.3/local/lib/python2.7/site-packages/sage/interfaces/expect.pyc
in __init__(self, parent, value, is_name, name)
   1375 else:
   1376 try:
-> 1377 self._name = parent._create(value, name=name)
   1378 # Convert ValueError and RuntimeError to TypeError for
   1379 # coercion to work properly.

/home/baer/bin/Sage/sage-7.3/local/lib/python2.7/site-packages/sage/interfaces/interface.pyc
in _create(self, value, name)
432 def _create(self, value, name=None):
433 name = self._next_var_name() if name is None else name
--> 434 self.set(name, value)
435 return name
436

/home/baer/bin/Sage/sage-7.3/local/lib/python2.7/site-packages/sage/interfaces/lie.pyc
in set(self, var, value)
689 """
690 cmd = '%s=%s'%(var,value)
--> 691 out = self.eval(cmd)
692 i = min( out.find('not defined'), out.find('\(in'),
out.find('Argument types') )
693 if i != -1:

/home/baer/bin/Sage/sage-7.3/local/lib/python2.7/site-packages/sage/interfaces/lie.pyc
in eval(self, code, strip, **kwds)
671 '4'
672 """
--> 673 s = Expect.eval(self,code, strip=True, **kwds)
674 #return s.strip()
675 if len(s) > 0 and s.find("\n") != -1:

/home/baer/bin/Sage/sage-7.3/local/lib/python2.7/site-packages/sage/interfaces/expect.pyc
in eval(self, code, strip, synchronize, locals, allow_use_file,
split_lines, **kwds)
   1292 elif split_lines:
   1293 return '\n'.join([self._eval_line(L,
allow_use_file=allow_use_file, **kwds)
-> 1294 for L in code.split('\n')
if L != ''])
   1295 else:
   1296 return self._eval_line(code,
allow_use_file=allow_use_file, **kwds)

/home/baer/bin/Sage/sage-7.3/local/lib/python2.7/site-packages/sage/interfaces/lie.pyc
in _eval_line(self, line, allow_use_file, wait_for_prompt,
restart_if_needed)
656
657 """
--> 658 out = Expect._eval_line(self, line,
allow_use_file=allow_use_file, wait_for_prompt=wait_for_prompt)
659 #Check to see if an error has occurred
660 err = max( out.find("\n(in"), out.find('not defined'),
out.find('Argument types')  )

/home/baer/bin/Sage/sage-7.3/local/lib/python2.7/site-packages/sage/interfaces/expect.pyc
in _eval_line(self, line, allow_use_file, wait_for_prompt,
restart_if_needed)
903 try:
904 if self._expect is None:
--> 905 self._start()
906 E = self._expect
907 try:

/home/baer/bin/Sage/sage-7.3/local/lib/python2.7/site-packages/sage/interfaces/expect.pyc
in _start(self, alt_message, block_during_init)
500 self._expect = None
501 

Re: [sage-support] Interface to lie broken in sage 7.3?

[Christian Bär]

I installed it in the same way. 

In fact, lie.version() works and gives '2.1' as for you but all of the 
following give error messages:
lie(1+1)
lie('1+1')
lie("1+1")

And, as I mentioned, the same problem occurs in the SageMathCloud where 
they also use sage 7.3. So it's not related to my install and I guess there 
must be something wrong with the LiE interface in sage 7.3.


Christian

-- 
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 post to this group, send email to sage-support@googlegroups.com.
Visit this group at https://groups.google.com/group/sage-support.
For more options, visit https://groups.google.com/d/optout.

Re: [sage-support] Interface to lie broken in sage 7.3?

[Vincent Delecroix]

How precisely did you install Lie? With the following steps it works on 
my computer (with Sage version 7.4.beta4)


 $ sage -i lie
 $ sage -b

And I can do

 $ sage
 SageMath version 7.4.beta4
 sage: lie.version()
 '2.1'
 sage: lie("1+1")
 2

Vincent

On 12/09/16 11:14, Christian Bär wrote:

In sage 7.2 the call lie(1+1) yields 2 as it should. In my sage 7.3 install
however I get "TypeError: unable to start LiE" even though the optinal LiE
package is installed. The same problem occurs in the SageMathCloud. Any
ideas?

The full output in sage 7.3 is:

sage: lie(1+1)
---
TypeError Traceback (most recent call last)
 in ()
> 1 lie(Integer(1)+Integer(1))

/home/baer/bin/Sage/sage-7.3/local/lib/python2.7/site-packages/sage/interfaces/interface.pyc
in __call__(self, x, name)
244 return cls(self, x, name=name)
245 try:
--> 246 return self._coerce_from_special_method(x)
247 except TypeError:
248 raise

/home/baer/bin/Sage/sage-7.3/local/lib/python2.7/site-packages/sage/interfaces/interface.pyc
in _coerce_from_special_method(self, x)
272 return (x.__getattribute__(s))(self)
273 except AttributeError:
--> 274 return self(x._interface_init_())
275
276 def _coerce_impl(self, x, use_special=True):

/home/baer/bin/Sage/sage-7.3/local/lib/python2.7/site-packages/sage/interfaces/interface.pyc
in __call__(self, x, name)
242
243 if isinstance(x, six.string_types):
--> 244 return cls(self, x, name=name)
245 try:
246 return self._coerce_from_special_method(x)

/home/baer/bin/Sage/sage-7.3/local/lib/python2.7/site-packages/sage/interfaces/expect.pyc
in __init__(self, parent, value, is_name, name)
   1380 except (RuntimeError, ValueError) as x:
   1381 self._session_number = -1
-> 1382 raise_(TypeError, x, sys.exc_info()[2])
   1383 except BaseException:
   1384 self._session_number = -1

/home/baer/bin/Sage/sage-7.3/local/lib/python2.7/site-packages/sage/interfaces/expect.pyc
in __init__(self, parent, value, is_name, name)
   1375 else:
   1376 try:
-> 1377 self._name = parent._create(value, name=name)
   1378 # Convert ValueError and RuntimeError to TypeError for
   1379 # coercion to work properly.

/home/baer/bin/Sage/sage-7.3/local/lib/python2.7/site-packages/sage/interfaces/interface.pyc
in _create(self, value, name)
432 def _create(self, value, name=None):
433 name = self._next_var_name() if name is None else name
--> 434 self.set(name, value)
435 return name
436

/home/baer/bin/Sage/sage-7.3/local/lib/python2.7/site-packages/sage/interfaces/lie.pyc
in set(self, var, value)
689 """
690 cmd = '%s=%s'%(var,value)
--> 691 out = self.eval(cmd)
692 i = min( out.find('not defined'), out.find('\(in'),
out.find('Argument types') )
693 if i != -1:

/home/baer/bin/Sage/sage-7.3/local/lib/python2.7/site-packages/sage/interfaces/lie.pyc
in eval(self, code, strip, **kwds)
671 '4'
672 """
--> 673 s = Expect.eval(self,code, strip=True, **kwds)
674 #return s.strip()
675 if len(s) > 0 and s.find("\n") != -1:

/home/baer/bin/Sage/sage-7.3/local/lib/python2.7/site-packages/sage/interfaces/expect.pyc
in eval(self, code, strip, synchronize, locals, allow_use_file,
split_lines, **kwds)
   1292 elif split_lines:
   1293 return '\n'.join([self._eval_line(L,
allow_use_file=allow_use_file, **kwds)
-> 1294 for L in code.split('\n')
if L != ''])
   1295 else:
   1296 return self._eval_line(code,
allow_use_file=allow_use_file, **kwds)

/home/baer/bin/Sage/sage-7.3/local/lib/python2.7/site-packages/sage/interfaces/lie.pyc
in _eval_line(self, line, allow_use_file, wait_for_prompt,
restart_if_needed)
656
657 """
--> 658 out = Expect._eval_line(self, line,
allow_use_file=allow_use_file, wait_for_prompt=wait_for_prompt)
659 #Check to see if an error has occurred
660 err = max( out.find("\n(in"), out.find('not defined'),
out.find('Argument types')  )

/home/baer/bin/Sage/sage-7.3/local/lib/python2.7/site-packages/sage/interfaces/expect.pyc
in _eval_line(self, line, allow_use_file, wait_for_prompt,
restart_if_needed)
903 try:
904 if self._expect is None:
--> 905 self._start()
906 E = self._expect
907 try:

/home/baer/bin/Sage/sage-7.3/local/lib/python2.7/site-packages/sage/interfaces/expect.pyc
in _start(self, alt_message, block_during_init)
500   

[sage-support] Interface to lie broken in sage 7.3?

[Christian Bär]

In sage 7.2 the call lie(1+1) yields 2 as it should. In my sage 7.3 install 
however I get "TypeError: unable to start LiE" even though the optinal LiE 
package is installed. The same problem occurs in the SageMathCloud. Any 
ideas?

The full output in sage 7.3 is:

sage: lie(1+1)
---
TypeError Traceback (most recent call last)
 in ()
> 1 lie(Integer(1)+Integer(1))

/home/baer/bin/Sage/sage-7.3/local/lib/python2.7/site-packages/sage/interfaces/interface.pyc
 
in __call__(self, x, name)
244 return cls(self, x, name=name)
245 try:
--> 246 return self._coerce_from_special_method(x)
247 except TypeError:
248 raise

/home/baer/bin/Sage/sage-7.3/local/lib/python2.7/site-packages/sage/interfaces/interface.pyc
 
in _coerce_from_special_method(self, x)
272 return (x.__getattribute__(s))(self)
273 except AttributeError:
--> 274 return self(x._interface_init_())
275 
276 def _coerce_impl(self, x, use_special=True):

/home/baer/bin/Sage/sage-7.3/local/lib/python2.7/site-packages/sage/interfaces/interface.pyc
 
in __call__(self, x, name)
242 
243 if isinstance(x, six.string_types):
--> 244 return cls(self, x, name=name)
245 try:
246 return self._coerce_from_special_method(x)

/home/baer/bin/Sage/sage-7.3/local/lib/python2.7/site-packages/sage/interfaces/expect.pyc
 
in __init__(self, parent, value, is_name, name)
   1380 except (RuntimeError, ValueError) as x:
   1381 self._session_number = -1
-> 1382 raise_(TypeError, x, sys.exc_info()[2])
   1383 except BaseException:
   1384 self._session_number = -1

/home/baer/bin/Sage/sage-7.3/local/lib/python2.7/site-packages/sage/interfaces/expect.pyc
 
in __init__(self, parent, value, is_name, name)
   1375 else:
   1376 try:
-> 1377 self._name = parent._create(value, name=name)
   1378 # Convert ValueError and RuntimeError to TypeError for
   1379 # coercion to work properly.

/home/baer/bin/Sage/sage-7.3/local/lib/python2.7/site-packages/sage/interfaces/interface.pyc
 
in _create(self, value, name)
432 def _create(self, value, name=None):
433 name = self._next_var_name() if name is None else name
--> 434 self.set(name, value)
435 return name
436 

/home/baer/bin/Sage/sage-7.3/local/lib/python2.7/site-packages/sage/interfaces/lie.pyc
 
in set(self, var, value)
689 """
690 cmd = '%s=%s'%(var,value)
--> 691 out = self.eval(cmd)
692 i = min( out.find('not defined'), out.find('\(in'), 
out.find('Argument types') )
693 if i != -1:

/home/baer/bin/Sage/sage-7.3/local/lib/python2.7/site-packages/sage/interfaces/lie.pyc
 
in eval(self, code, strip, **kwds)
671 '4'
672 """
--> 673 s = Expect.eval(self,code, strip=True, **kwds)
674 #return s.strip()
675 if len(s) > 0 and s.find("\n") != -1:

/home/baer/bin/Sage/sage-7.3/local/lib/python2.7/site-packages/sage/interfaces/expect.pyc
 
in eval(self, code, strip, synchronize, locals, allow_use_file, 
split_lines, **kwds)
   1292 elif split_lines:
   1293 return '\n'.join([self._eval_line(L, 
allow_use_file=allow_use_file, **kwds)
-> 1294 for L in code.split('\n') 
if L != ''])
   1295 else:
   1296 return self._eval_line(code, 
allow_use_file=allow_use_file, **kwds)

/home/baer/bin/Sage/sage-7.3/local/lib/python2.7/site-packages/sage/interfaces/lie.pyc
 
in _eval_line(self, line, allow_use_file, wait_for_prompt, 
restart_if_needed)
656 
657 """
--> 658 out = Expect._eval_line(self, line, 
allow_use_file=allow_use_file, wait_for_prompt=wait_for_prompt)
659 #Check to see if an error has occurred
660 err = max( out.find("\n(in"), out.find('not defined'), 
out.find('Argument types')  )

/home/baer/bin/Sage/sage-7.3/local/lib/python2.7/site-packages/sage/interfaces/expect.pyc
 
in _eval_line(self, line, allow_use_file, wait_for_prompt, 
restart_if_needed)
903 try:
904 if self._expect is None:
--> 905 self._start()
906 E = self._expect
907 try:

/home/baer/bin/Sage/sage-7.3/local/lib/python2.7/site-packages/sage/interfaces/expect.pyc
 
in _start(self, alt_message, block_during_init)
500 self._expect = None
501 self._session_number = BAD_SESSION
--> 502 raise RuntimeError("unable to start %s" % self.name())
503 self._expect.timeout = None
504 

TypeError: unable to start LiE

-- 
You 

[sage-support] logged out

[Anton Sherwood]

Oh heck.  I used my local Sage "server" yesterday, and (thinking nothing 
of it) signed out before shutting it down; and now it wants me to sign 
in.  I don't remember ever signing in before, and have no idea what it 
thinks my username is!


--
*\\*  Anton Sherwood  *\\*  www.bendwavy.org

--
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 post to this group, send email to sage-support@googlegroups.com.
Visit this group at https://groups.google.com/group/sage-support.
For more options, visit https://groups.google.com/d/optout.