[sage-support] maximum induced cycle length

2015-10-13 Thread Selva Raja S
Is there any coding/command, to find maximum induced cycle length? -- 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

Re: [sage-support] A problem with doing integrations on cloud.sagemath.com

2015-10-13 Thread Phoenix
So what is the remnant problem? On Wednesday, October 14, 2015 at 3:04:34 AM UTC+5:30, projetmbc wrote: > > x and n seems to be defined by default as variables but this is not true > for a, so you have to add a = bar("a"). But after this change, there is > then another problem. > > > a = va

Re: [sage-support] A problem with doing integrations on cloud.sagemath.com

2015-10-13 Thread Christophe Bal
x and n seems to be defined by default as variables but this is not true for a, so you have to add a = bar("a"). But after this change, there is then another problem. a = var("a") assume(a>0) assume(x>=0) assume(n,'integer') assume(n+1/2+x < a ) assume(n+1/2 - x > -a) z = i*(n+1/2)+x*exp(i*

[sage-support] A problem with doing integrations on cloud.sagemath.com

2015-10-13 Thread Phoenix
Can someone kindly explain what is wrong with the following? I am integrating the function ztanh(pi z)log(z^2+a^2) on a small circle of radius x about the point i(n+1/2) assume(a>0) assume(x>=0) assume(n,'integer') assume(n+1/2+x < a ) assume(n+1/2 - x > -a) z = i*(n+1/2)+x*exp(i*p) f = z*t

Re: [sage-support] pyopenssl-0.13.p0.spkg not accessible at "http://www.sagemath.org/spkg/optional/"

2015-10-13 Thread Rudi Pendavingh
Dear Jan, > On 13 Oct 2015, at 14:10, Jan Groenewald wrote: > > You didn't have libssl-dev when you compiled sage the first time. > > sudo apt-get install libssl-dev > sage -f python # rebuild the pythin in sage > cd SAGE_ROOT; make # is this necessary? Sage prompts the user to run make > agai

Re: [sage-support] Re: pyopenssl-0.13.p0.spkg not accessible at "http://www.sagemath.org/spkg/optional/"

2015-10-13 Thread Jan Groenewald
Hi On 12 October 2015 at 18:09, Rudi Pendavingh wrote: > Hi all, > > When I try "sage -pip install pyopenssl" (on using sage 6.8 compiled from > source on ubuntu 14 lts) I get the error below. > > ImportError: No module named 'pip._vendor.requests' > You didn't have libssl-dev when you compiled

[sage-support] Re: pyopenssl-0.13.p0.spkg not accessible at "http://www.sagemath.org/spkg/optional/"

2015-10-13 Thread HG
with ubuntu libssl-dev will do it Le vendredi 17 avril 2015 16:01:14 UTC+2, ota.s...@gmail.com a écrit : > > Hello, > > I am trying to compile sage-6.5 with ssl support but when the command > "./sage -i pyopenssl" > tries downloading the pyopenssl-0.13.p0.spkg package it gives error: > --

[sage-support] Re: pyopenssl-0.13.p0.spkg not accessible at "http://www.sagemath.org/spkg/optional/"

2015-10-13 Thread Rudi Pendavingh
Hi all, When I try "sage -pip install pyopenssl" (on using sage 6.8 compiled from source on ubuntu 14 lts) I get the error below. Any help would be greatly appreciated. Rudi rudi@matroid:~/sage-6.8$ ./sage -pip install pyopenssl Traceback (most recent call last): File "/home/rudi/sage-6.8

Re: [sage-support] Re: Is this a bug in Polyhedron class (RDF vs AA)?

2015-10-13 Thread jplab
Hi, Thank you for your quick answer! Ok, that makes sense. I have a follow-up question. I will put it on sage-devel as it is related to the implementation of a ticket. Best, JP Le lundi 12 octobre 2015 22:21:12 UTC+2, vdelecroix a écrit : > > On 12/10/15 12:57, Nathann Cohen wrote: > >> I