Re: [sage-devel] Re: Can we afford a new attribute of sage.structure.element.Element?

2011-05-30 Thread Robert Bradshaw
On Sat, Apr 30, 2011 at 1:27 AM, Simon King wrote: > Hi Nicolas, > > On 29 Apr., 23:06, "Nicolas M. Thiery" > wrote: >> Can you give it a shot with GF(2), so as to hit one of the smallest >> possible sage Element? > > Sage-4.7.alpha5 with patches: > > sage: K = GF(2) > sage: get_memory_usage() >

Re: [sage-devel] Re: problem using magma with 4.7 not just in the notebook

2011-05-30 Thread John Cremona
Why the new ticket when #11401 is already open on this? John On Mon, May 30, 2011 at 8:56 PM, William Stein wrote: > On Mon, May 30, 2011 at 9:15 AM, Nils Bruin wrote: >> This will probably help the person who is going to track down this >> bug: It's not just in the notebook and it looks like n

Re: [sage-devel] Re: problem using magma with 4.7 not just in the notebook

2011-05-30 Thread William Stein
On Mon, May 30, 2011 at 9:15 AM, Nils Bruin wrote: > This will probably help the person who is going to track down this > bug: It's not just in the notebook and it looks like newlines in the > input knock the interface out of sync (but not always!) The following > example fails reliably for me: >

[sage-devel] Re: problem using magma in notebook with 4.7

2011-05-30 Thread Rob Beezer
On May 29, 11:51 pm, Nils Bruin wrote: > (for Rob Beezer: #11374 only fixes a typo in a doctest. This must be > another issue). Thanks, Nils. Not being very careful. #11374 was a follow-on to #9605 (which was what I was remembering) and I see #9605 now being discussed on the new ticket. -- To

[sage-devel] patch ticket says it was merged, but patch doesn't appear to be merged

2011-05-30 Thread Jason Grout
I just noticed that http://trac.sagemath.org/sage_trac/ticket/7002 says it was merged a long time ago, but the help file that you get when clicking "Help" in 4.7 in the notebook, the line "Autoevaluate Cells on Load" still lists the old text. Question 1: Is this patch touching the right file

[sage-devel] Re: [linbox-use] Nullspace of a rational matrix?

2011-05-30 Thread William Stein
On Sat, May 28, 2011 at 1:41 PM, Josh wrote: > Hi all, > > I would like to compute the nullspace basis of a dense (exact) > rational matrix. Is this possible in linbox? It looks like the methods > in solutions/nullspace.h only work for finite fields, as they use > FFLAS for the LU decomposition...

[sage-devel] sage days in KL in September

2011-05-30 Thread Burcin Erocal
Hi, we are planning to organize Sage/Singular days in Kaiserslautern some time in September. The focus will be on the development of the Sage-Singular interface, and libSingular, but anybody interested is welcome to participate. Financial support will be available, especially for the brave who ca

Re: [sage-devel] Re: problem using magma with 4.7 not just in the notebook

2011-05-30 Thread John Cremona
Looking at the magma.eval() function, I see that if the string to be passed to magma does not end in ';' then a semicolon is appended. That is clearly intended for convenience (Sage users are not used to ending lines with ';') but must cause problems with continuation lines, surely? I tried Nils's

[sage-devel] Re: problem using magma with 4.7 not just in the notebook

2011-05-30 Thread Nils Bruin
This will probably help the person who is going to track down this bug: It's not just in the notebook and it looks like newlines in the input knock the interface out of sync (but not always!) The following example fails reliably for me: sage: magma.execute("a:=1;b:=2;") '' sage: magma.execute("pri

Re: [sage-devel] Re: problem using magma in notebook with 4.7

2011-05-30 Thread John Cremona
Thanks for checking this out, Nils. I had a report from one of my students who uses this, soon after switching to 4.7 on our server, but it was too late in the evening for me to investigate myself. I'll tell him it's being trac'ed. John On Mon, May 30, 2011 at 7:51 AM, Nils Bruin wrote: > Con