Hello,
I've got a rational expression in sage and I would like to convert it to a
polynomial with coefficients in some fraction field.
More precisely, I've got something like this:
a , x = var( 'a , x' ) ;
P = x/a ;
and I would like to see it like a polynomial in the polynomial ring in the
A couple more datapoints :
Machine 1, setup 1 : home machine connected via a (slow but usually
reliable) ADSL land line : fails since yesterday, last checked this mornong
(about 08:00 CET).
Machine 2, setup 2 : work machine connected via the corporate network of
my employer. Fails since this
You are more likely to get help if you post the failing command with output.
On Friday, June 12, 2015 at 6:52:50 AM UTC+2, Emmanuel Charpentier wrote:
It still (2015-06-12,06:50 CET) fails for me. Not *that* transient, it
seems...
And, yes, I can ssh from this machine to The Rest of The
On machine 2, setup 2, same old same...
git fetch -v
fatal: unable to connect to trac.sagemath.org:
trac.sagemath.org[0: 128.208.178.249]: errno=Connexion terminée par
expiration du délai d'attente
Le vendredi 12 juin 2015 09:58:42 UTC+2, Volker Braun a écrit :
git fetch -v
On Friday,
Same problem on a different pachine with a different network connection :
git fetch
fatal: unable to connect to trac.sagemath.org:
trac.sagemath.org[0: 128.208.178.249]: errno=Connexion terminée par
expiration du délai d'attente
HTH,
--
Emmanuel Charpentier
Le vendredi 12 juin 2015 09:37:56
On 2015-06-11 17:26, Phoenix wrote:
I have two polynomials $p(x)$ and $q(x)$ and I want to know if there are
roots of the equation $\frac{p'}{p} = \frac{q'}{q}$ in the domain
$(a,\infinity)$ - where $a = max \{ roots(p),roots(q) \}$
This is the same as asking for the roots of the polynomial,
Desperately trying to push something, the function hangs. I also cannot
get to load the ticket I want to update [1] :-P
Nathann
[1] http://trac.sagemath.org/ticket/18681
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Note: same as this question on stackoverflow:
http://stackoverflow.com/questions/30784577/how-does-one-find-roots-of-polynomials-in-a-given-domain-in-sage
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I've seen it now, too. The connection is pretty flaky even when it works,
e.g. massive packet loss (look at the sequence numbers):
$ ping trac.sagemath.org
PING trac.sagemath.org (128.208.178.249): 56 data bytes
64 bytes from 128.208.178.249: seq=6 ttl=46 time=512.834 ms
64 bytes from
git fetch -v
On Friday, June 12, 2015 at 9:41:58 AM UTC+2, Emmanuel Charpentier wrote:
Same problem on a different pachine with a different network connection :
git fetch
fatal: unable to connect to trac.sagemath.org:
trac.sagemath.org[0: 128.208.178.249]: errno=Connexion terminée par
Still fails for me.
On second thought, a live goat as some real uses (goat cheese ... ...).
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Emmanuel Charpentier
Le vendredi 12 juin 2015 12:36:26 UTC+2, Nathann Cohen a écrit :
Should we sacrifice a goat ? (Or a manager...)
Things seems normal again here. If you don't think that
1) Go to google, type in level3, click on search tools - past hour
2) https://en.wikipedia.org/wiki/Tier_1_network
On Friday, June 12, 2015 at 1:03:08 PM UTC+2, Nathann Cohen wrote:
Apparently Telekom Malaysia
(https://twitter.com/TMCorp/status/609167065300271104) broke the
internet
Yo !
1) Go to google, type in level3, click on search tools - past hour
Come on man, how do you 'guess' level3?
2) https://en.wikipedia.org/wiki/Tier_1_network
I was doing that, but again how do you guess that name? Is there
some book explaining all this?
Nathann
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And of course
$ traceroute trac.sagemath.org
Yeah. Well at that time mine involved different operators. Cogentco or
something.
Nathann
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Apparently Telekom Malaysia
(https://twitter.com/TMCorp/status/609167065300271104) broke the internet
for a short while until the Tier 1 providers cut them off...
On Friday, June 12, 2015 at 11:16:41 AM UTC+2, Volker Braun wrote:
I've seen it now, too. The connection is pretty flaky even
On Thursday, June 11, 2015 at 5:26:28 PM UTC+2, Phoenix wrote:
I have two polynomials $p(x)$ and $q(x)$ and I want to know if there are
roots of the equation $\frac{p'}{p} = \frac{q'}{q}$ in the domain
$(a,\infinity)$ - where $a = max \{ roots(p),roots(q) \}$
This is the same as asking for
Thanks !
Should we sacrifice a goat ? (Or a manager...)
--
Emmanuel Charpentier
Le vendredi 12 juin 2015 11:16:41 UTC+2, Volker Braun a écrit :
I've seen it now, too. The connection is pretty flaky even when it works,
e.g. massive packet loss (look at the sequence numbers):
$ ping
And of course
$ traceroute trac.sagemath.org
traceroute to trac.sagemath.org (128.208.178.249), 30 hops max, 38 byte
packets
[...]
6 ip5886ca49.dynamic.kabel-deutschland.de (88.134.202.73) 8.599 ms
8.090 ms 8.055 ms
7 bei-b1-link.telia.net (80.239.132.237) 16.656 ms 8.077 ms 7.952 ms
On Friday, June 12, 2015 at 2:25:11 PM UTC+2, Nathann Cohen wrote:
1) Go to google, type in level3, click on search tools - past hour
Come on man, how do you 'guess' level3?
Was pretty obvious from the traceroute output...
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On Friday, June 12, 2015 at 11:17:37 AM UTC+2, Néstor wrote:
Hello,
I've got a rational expression in sage and I would like to convert it to a
polynomial with coefficients in some fraction field.
More precisely, I've got something like this:
a , x = var( 'a , x' ) ;
P = x/a ;
and I
Apparently Telekom Malaysia
(https://twitter.com/TMCorp/status/609167065300271104) broke the internet
for a short while until the Tier 1 providers cut them off...
Hey man, can you share the wisdom!?
1) How did you figure that out?
2) How do you learn about internet's organization (Tier 1,
Should we sacrifice a goat ? (Or a manager...)
Things seems normal again here. If you don't think that you will eat
that whole goat by yourself, you can count me in.
Nathann
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I tried cloning just the repo and then fetching all of trac and it worked.
My git version seems to be more recent though, the output is all different.
Have you tried increasing the post buffer?
git config --global http.postBuffer 524288000
git fetch -v
On Friday, June 12, 2015 at 10:46:18 PM
On Thursday, June 11, 2015 at 11:26:48 AM UTC+5:30, Ralf Stephan wrote:
n = var('n',domain='integer')
res = solve([n^2 == 3],n); print res = ,res
returns the weird answer :
res = [
n == -sqrt(3),
n == sqrt(3)
]
But
sage: assume(n,'integer')
sage: solve(n^2-3,n)
[]
so it seems
Since 6.8.beta1, ser=veral R packages can no longer be installed.
The surce seems to be commit bb5c9f3a... fixing trac#17572
http://trac.sagemath.org/ticket/17572. This (closed) ticket has been
commented and another ticket (trac#18691
http://trac.sagemath.org/ticket/18691) has been opened.
On Saturday, June 13, 2015 at 1:23:59 AM UTC+5:30, Dominique Laurain wrote:
Thanks Ralf...yes much better
Adding first line...
n = var('n')
assume(n,'integer')
#solve(n^2-3,n)
#solve(n^2 + 2*n + 1,n)
solve((n-1)*(n^2+1),n)
Thanks Sir for encouraging me, I am trying to learn sage
On Sat, Jun 13, 2015 at 2:08 AM, Dominique Laurain
dominique.laurai...@orange.fr wrote:
Precisely I cannot explain it...because using software is not same coding
software ..people , not me, are coding SAGE (and other modules included into
.
.
.
maybe you will see the light in your dark
Thanks Ralf...yes much better
Adding first line...
n = var('n')
assume(n,'integer')
#solve(n^2-3,n)
#solve(n^2 + 2*n + 1,n)
solve((n-1)*(n^2+1),n)
..and I have very happy to get only integer roots.
But dreamingly, I would like SAGE display (at least) error deprecated
(more precisely not
Precisely I cannot explain it...because using software is not same coding
software ..people , not me, are coding SAGE (and other modules included
into it)
Usually : assume() is Python call for assuming something, and if not
true..then software stops
But here, it's a constraint...it's a
The server communication works, this is unrelated
On Friday, June 12, 2015 at 10:46:18 PM UTC+2, Emmanuel Charpentier wrote:
Things seem still flaky now (22:42 CET) : git fetch still hangs. But git
fetch -v gives some signs of life before hanging :
git fetch -v
POST git-upload-pack
On Friday, June 12, 2015 at 7:22:40 PM UTC+5:30, kcrisman wrote:
http://www.samontab.com/web/2012/12/using-opencv-in-sage
This is an awesome post, and it would be awesome to include (an updated
version of) it somewhere in standard documentation.
My guess is that you did not make
Things seem still flaky now (22:42 CET) : git fetch still hangs. But git
fetch -v gives some signs of life before hanging :
git fetch -v
POST git-upload-pack (gzip 12481 to 6253 bytes)
POST git-upload-pack (gzip 13031 to 6539 bytes)
POST git-upload-pack (gzip 14581 to 7322 bytes)
POST
On Sat, Jun 13, 2015 at 2:36 AM, avi kaur kauravi...@gmail.com wrote:
On Sat, Jun 13, 2015 at 2:08 AM, Dominique Laurain
dominique.laurai...@orange.fr wrote:
Precisely I cannot explain it...because using software is not same coding
software ..people , not me, are coding SAGE (and other modules
My guess is that you did not make Sage aware of it properly. In
particular, Sage's directory structure may have changed enough that the
instructions for that in the post may no longer be accurate.
It means, I need to reinstall my sage or Is there any way to update
my
http://www.samontab.com/web/2012/12/using-opencv-in-sage
This is an awesome post, and it would be awesome to include (an updated
version of) it somewhere in standard documentation.
Sir, I am following your guidlines but when I import cv2 after
typing python, I got
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