[sage-devel] Re: echelonize sometimes fails

2012-05-29 Thread Nils Bruin
On May 29, 12:11 pm, Emil wrote: > Thanks! I'm trying to reproduce it, but haven't been successful so far. > > But in the meantime, it does seem slightly unsatisfactory that > something with an obvious deterministic algorithm can fail for random > reasons. And that this has been observed in a real

[sage-devel] Re: echelonize sometimes fails

2012-05-29 Thread Jason Grout
On 5/29/12 2:11 PM, Emil wrote: Thanks! I'm trying to reproduce it, but haven't been successful so far. But in the meantime, it does seem slightly unsatisfactory that something with an obvious deterministic algorithm can fail for random reasons. And that this has been observed in a real situatio

Re: [sage-devel] Re: echelonize sometimes fails

2012-05-29 Thread Emil
Thanks! I'm trying to reproduce it, but haven't been successful so far. But in the meantime, it does seem slightly unsatisfactory that something with an obvious deterministic algorithm can fail for random reasons. And that this has been observed in a real situation. Emil -- To post to this grou

[sage-devel] Re: echelonize sometimes fails

2012-05-29 Thread Nils Bruin
On May 29, 7:29 am, Emil wrote: > On 29 May 2012 15:21, William Stein wrote: > > > Can you give an example?  E.g., a matrix and a random seed? > > Not easily... If it is really necessary I can find the matrix that it > failed on. Although most of the time it works on this matrix... That would be