On Thursday, April 18, 2013 8:01:38 AM UTC-7, juaninf wrote: > > Thanks, > > But if the matrix A is non-square How I will be able to solve?. I am > trying but I get number of rows of self must equal degree of B >
This is a math question now. If A is n x k, and if you want to solve Ax = b, then b needs to be an n-dimensional vector. It sounds like you're trying with b of the wrong dimension. sage: A = random_matrix(GF(2), 10, 20) sage: b = random_vector(GF(2), 10) sage: A \ b (1, 0, 1, 1, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) > > > 2013/4/17 Robert Bradshaw <robe...@gmail.com <javascript:>> > >> sage: A = random_matrix(GF(2), 10000, 10000) >> sage: A.det() >> 1 >> sage: b = random_vector(GF(2), 10000) >> sage: %time x = A \ b >> CPU times: user 1.61 s, sys: 0.06 s, total: 1.67 s >> Wall time: 1.67 s >> sage: A * x == b >> True >> >> >> On Wed, Apr 17, 2013 at 1:45 PM, Juan Grados <jua...@gmail.com<javascript:>> >> wrote: >> > I have the equation Ax=b where all matrix entries and all entrie of >> vector b >> > are in GF(2). How I will be able to solve this linear system equation >> over >> > GF(2) in SAGE software? >> > >> > -- >> > --------------------------------------------------------------------- >> > MSc. Juan del Carmen Grados Vásquez >> > Laboratório Nacional de Computação Científica >> > Tel: +55 24 2233-6260 >> > (http://www.lncc.br/) >> > http://juaninf.blogspot.com >> > --------------------------------------------------------------------- >> > >> > -- >> > You received this message because you are subscribed to the Google >> Groups >> > "sage-support" group. >> > To unsubscribe from this group and stop receiving emails from it, send >> an >> > email to sage-support...@googlegroups.com <javascript:>. >> > To post to this group, send email to >> > sage-s...@googlegroups.com<javascript:> >> . >> > Visit this group at http://groups.google.com/group/sage-support?hl=en. >> > For more options, visit https://groups.google.com/groups/opt_out. >> > >> > >> >> -- >> You received this message because you are subscribed to the Google Groups >> "sage-support" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to sage-support...@googlegroups.com <javascript:>. >> To post to this group, send email to sage-s...@googlegroups.com<javascript:> >> . >> Visit this group at http://groups.google.com/group/sage-support?hl=en. >> For more options, visit https://groups.google.com/groups/opt_out. >> >> >> > > > -- > --------------------------------------------------------------------- > MSc. Juan del Carmen Grados Vásquez > Laboratório Nacional de Computação Científica > Tel: +55 24 2233-6260 > (http://www.lncc.br/) > http://juaninf.blogspot.com > --------------------------------------------------------------------- > -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-support+unsubscr...@googlegroups.com. To post to this group, send email to sage-support@googlegroups.com. Visit this group at http://groups.google.com/group/sage-support?hl=en. For more options, visit https://groups.google.com/groups/opt_out.
