Ask Your Question

ji-o's profile - activity

2019-04-12 06:23:41 -0500 received badge  Notable Question (source)
2019-04-12 06:23:41 -0500 received badge  Popular Question (source)
2013-08-02 05:38:21 -0500 received badge  Nice Question (source)
2013-07-29 11:01:09 -0500 received badge  Scholar (source)
2013-07-29 11:01:09 -0500 marked best answer Find minimum value of polynomial

Try the following:

f(x)=(x-3)*(x+2)^2
f.find_minimum_on_interval(0,1)
2013-07-29 08:50:12 -0500 received badge  Editor (source)
2013-07-29 07:20:42 -0500 asked a question Find minimum value of polynomial

I have a univariate polynomial with integer coefficients over [0,1] and I would like to find a minimum value. Is there an easy way to do that in sage?

2013-02-08 15:28:19 -0500 received badge  Famous Question (source)
2011-11-15 08:10:03 -0500 received badge  Notable Question (source)
2011-08-23 07:17:09 -0500 received badge  Popular Question (source)
2011-03-29 08:14:06 -0500 received badge  Student (source)
2011-03-28 14:10:14 -0500 asked a question Solve large system of linear equations over GF(2)

I need to solve a pretty large system of linear equations over GF(2) (The matrix is around 20000 x 20000). The straightforward approach used to solve linear equation systems (by using MatrixSpace and octave) will ran out of memory before even building up the matrix.

I wonder if there is any method i could use to solve such a system. Also note that the system i try to solve is sparse in general.