[sage-support] solve_ineq() fails

2012-12-02 Thread Cary Cherng
I tried using solve_ineq in the notebook in the simple way below and got an error. It seems to be related to http://trac.sagemath.org/sage_trac/ticket/11520 Is there a workaround? R. = PolynomialRing(QQ) solve_ineq([g1 > g2],[g1,g2]) Traceback (most recent call last): File "", line 1, in F

[sage-support] Constructing subsapces of vector spaces

2012-12-02 Thread Andrew Mathas
Hi All, I have been playing with some code where I want to find a submodule of a module V which is annihilated by a bunch of maps. What I want to do something like the following: V= some free submodule of rank v inside a space of rank d\ge v. mat=[[0 for col in range(w)] for row in range(v)] #

Re: [sage-support] Re: piecewise

2012-12-02 Thread David Smith
Thanks, all, for your responses on the current state of piecewise. I was the one who posed the question to Jason, and I understand now what I need to do, at least for the short run. On Saturday, December 1, 2012 12:35:13 PM UTC-5, Dan Aldrich wrote: > > I eventually gave up on piecewise. I do s