Re: [sage-support] Re: Problem with a derivative of order k in a summation in k

2014-05-16 Thread Bruno
Thanks for your help. 2014-05-15 12:09 GMT-04:00 Nils Bruin : > On Thursday, May 15, 2014 6:03:04 AM UTC-7, Bruno wrote: >> >> >> somat=sum( (((t-a)**k)/factorial(k))*((derivative(s,t,k)).limit(t=1)) >> ,k,0,3) >> > > This is unfortunately rather subtle. The problem is that your notation > deriv

Re: [sage-support] installation from source failed on 6.2

2014-05-16 Thread P Purkayastha
Actually, the problem in both cases could be that some directory, maybe /usr/local/sage-6.2 or some directory inside it, was group writable. On Sat, May 17, 2014 at 5:39 AM, Montgomery-Smith, Stephen < step...@missouri.edu> wrote: > On 05/16/2014 04:29 PM, Luis Finotti wrote: > > Dear all, > > >

Re: [sage-support] installation from source failed on 6.2

2014-05-16 Thread Montgomery-Smith, Stephen
On 05/16/2014 04:29 PM, Luis Finotti wrote: > Dear all, > > I tried to build from source (as usual for me) in Debian unstable (64 bit). > > The install.log can be found here: > http://www.math.utk.edu/~finotti/misc/install.log > > Any help would be greatly appreciated. > > Best to all, > > Lui

[sage-support] Re: installation from source failed on 6.2

2014-05-16 Thread Luis Finotti
On Friday, May 16, 2014 5:34:27 PM UTC-4, P Purkayastha wrote: > > Your main error is here: > > > checking dependency style of gcc... gcc3 > checking for python... /usr/local/sage-6.2/local/bin/python > checking for a version of Python >= '2.1.0'... sys:1: RuntimeWarning: not > adding directory

[sage-support] Re: installation from source failed on 6.2

2014-05-16 Thread P Purkayastha
Your main error is here: checking dependency style of gcc... gcc3 checking for python... /usr/local/sage-6.2/local/bin/python checking for a version of Python >= '2.1.0'... sys:1: RuntimeWarning: not adding directory '' to sys.path since it's writable by an untrusted group. Untrusted users cou

[sage-support] installation from source failed on 6.2

2014-05-16 Thread Luis Finotti
Dear all, I tried to build from source (as usual for me) in Debian unstable (64 bit). The install.log can be found here: http://www.math.utk.edu/~finotti/misc/install.log Any help would be greatly appreciated. Best to all, Luis -- You received this message because you are subscribed to the

[sage-support] Re: Fwd: KASH Sage Package with Windows

2014-05-16 Thread leif
William Stein wrote: I'm forwarding this to the sage-support mailing list. I will also point out that kash is pre-installed into the online version of Sage at https://cloud.sagemath.com. -- Forwarded message -- From: Sarah Anderson Date: Fri, May 16, 2014 at 9:28 AM Subject: KAS

[sage-support] Re: polyhedra: projecting/eliminating variables

2014-05-16 Thread Volker Braun
I'm implementing the double description algorithm in that ticket. Its of course not entirely unrelated, but doesn't do the inequality-reshuffling part for you. On Friday, May 16, 2014 4:52:20 PM UTC+1, Dima Pasechnik wrote: > > On 2014-05-16, Jeroen Demeyer > > wrote: > > On 2014-05-15 11:33

[sage-support] Fwd: KASH Sage Package with Windows

2014-05-16 Thread William Stein
I'm forwarding this to the sage-support mailing list. I will also point out that kash is pre-installed into the online version of Sage at https://cloud.sagemath.com. -- Forwarded message -- From: Sarah Anderson Date: Fri, May 16, 2014 at 9:28 AM Subject: KASH Sage Package with Win

[sage-support] Re: polyhedra: projecting/eliminating variables

2014-05-16 Thread Dima Pasechnik
On 2014-05-16, Jeroen Demeyer wrote: > On 2014-05-15 11:33, Volker Braun wrote: >> On Thursday, May 15, 2014 8:45:47 AM UTC+1, Jeroen Demeyer wrote: >> >> > IMHO, Jeroen needs to use Fourier-Motzkin elimination. >> Yes, something like that. Elimination based purely on the H-rep without >>

Re: [sage-support] Re: polyhedra: projecting/eliminating variables

2014-05-16 Thread Jeroen Demeyer
On 2014-05-15 11:33, Volker Braun wrote: On Thursday, May 15, 2014 8:45:47 AM UTC+1, Jeroen Demeyer wrote: > IMHO, Jeroen needs to use Fourier-Motzkin elimination. Yes, something like that. Elimination based purely on the H-rep without first computing the V-rep. Is this implemented

[sage-support] Computing a Groebner Basis (singular algorithm) raises an error

2014-05-16 Thread Fabian Weise
Hello there, as you can see below I am defining a polynomial ring, an ideal and computing its Groebner Basis in a for loop (iterating threw different .xml files). During the computation I set an alarm for 5s (in the example below still 60s) and let the program print a message in the error case