Re: [sage-devel] Bug in modp sparse matrix multiply

2017-08-21 Thread Daniel Roche
Thanks, I submitted and fixed the bug here (in case anyone wants to review it): https://trac.sagemath.org/ticket/23669 On Sunday, August 20, 2017 at 9:11:08 PM UTC-4, vdelecroix wrote: > > Dear Dan, > > Thanks for the report! This is indeed a bug. If you want to go further > and fix the bug you

Re: [sage-devel] Bug in modp sparse matrix multiply

2017-08-20 Thread Vincent Delecroix
Dear Dan, Thanks for the report! This is indeed a bug. If you want to go further and fix the bug yourself, the procedure is described here http://doc.sagemath.org/html/en/developer/ Otherwise I will open the relevant ticket. Vincent On 20/08/2017 19:59, Daniel Roche wrote: Hi sagers, Firs

[sage-devel] Bug in modp sparse matrix multiply

2017-08-20 Thread Daniel Roche
Hi sagers, First let me say thanks for the great piece of software that is sage. You all do a tremendous job and maybe don't get thanked enough. There appears to be a bug in sparse matrix multiplication over small finite fields: sage: p = next_prime(2**15); p 32771 sage: M = Matrix(GF(p), 1,3,