[sage-support] Re: EC search problem

2009-06-24 Thread William Stein
On Wed, Jun 24, 2009 at 1:29 PM, adam mohamedadam.hariv...@googlemail.com wrote:  I did not know that. I tought that by the line: S = P.division_points(n_1), I would get a non-trivial point in that case witouh having to return all the points. Can I just chose a non-trivial random point on the

[sage-support] Re: EC search problem

2009-06-24 Thread adam mohamed
Dear John, I was also searching for curves of cofactor one and that's what the first part was supposed to do, I am sorry I forgot to say it in the previous post. Anyway I will add some lines and hope that this time things will work well. Many thanks. Adam On Wed, Jun 24, 2009 at 2:13 PM,

[sage-support] Re: Dimensional Analysis or Unit Conversion capability?

2009-06-24 Thread Robert Bradshaw
On Jun 24, 2009, at 5:11 AM, Maurizio wrote: I totally agree, but unfortunately it seems there are not so many people involved in the development of SAGE, focused on these topics. This was true of many things that are now in Sage when they started out. Rather than existing Sage developers

[sage-support] Complexity of Groebner Basis computation

2009-06-24 Thread vpv
I have a system of 300 quadratic boolean equations in 200 variables. I am able to find a single solution to the system using Groebner Bases (the PolyBori implementation) in time less than 2 minutes - 1 second for computing the Groebner Basis and 85 seconds for computing the variety and memory

[sage-support] Re: Is it possible to disable maxima automated simplification ?

2009-06-24 Thread Nicolas
Sorry, I thought this was clear. when you type sage: a=x+x+1 sage: a 2*x + 1 If I understood correctly, the simplification of x+x by 2*x is done by maxima in the background. I f x is here much more complicated (or if the expression itself is complicated), the simplification process can become

[sage-support] Re: Is it possible to disable maxima automated simplification ?

2009-06-24 Thread William Stein
On Wed, Jun 24, 2009 at 6:47 PM, Nicolasnicolas.fresseng...@gmail.com wrote: Sorry, I thought this was clear. when you type sage: a=x+x+1 sage: a 2*x + 1 If I understood correctly, the simplification of x+x by 2*x is done by maxima in the background. Just to be clear, that is

[sage-support] Re: notebook doesn't open

2009-06-24 Thread kulic
Same problem here. Windows Vista. Exact same error message. On Jun 14, 6:16 am, William Stein wst...@gmail.com wrote: On Sat, Jun 13, 2009 at 10:34 PM, rcrowno...@sbcglobal.netrcrowno...@sbcglobal.net wrote: Did you ever get a reply?  This is my problem also. Ican'treally understand the

[sage-support] Re: parallelization

2009-06-24 Thread Robert Bradshaw
On Jun 23, 2009, at 3:09 PM, rje wrote: First, thanks to David and William, who have answered my questions in the past. I have access to NVIDIA Tesla and AMD Firestream GPGPU hardware. Are there any existing tools which would help facilitate porting and finely parallelizing the following

[sage-support] Re: Is it possible to disable maxima automated simplification ?

2009-06-24 Thread Robert Bradshaw
On Jun 24, 2009, at 10:05 AM, William Stein wrote: On Wed, Jun 24, 2009 at 6:47 PM, Nicolasnicolas.fresseng...@gmail.com wrote: Sorry, I thought this was clear. when you type sage: a=x+x+1 sage: a 2*x + 1 If I understood correctly, the simplification of x+x by 2*x is done by