Hi,
I would like to compute the solution of systems of inequalities over
the integers. I have used the command solve, but the solution is
over the complex numbers.
Something like:
i, j = var('i,j')
sol=solve([2*i+9*j= - 0, -5*i-7*j=-5, 3*i-2*j= -6], i,j)
sol
[[i == (-54/31), j == (12/31)], [i
I think Sage calls Maxima and Maxima is getting i (your variable)
and I (sqrt(-1)) mixed up. I guess this is a bug, but it might be
known already.
Anyway, using x's and y's might be safer:
sage: x,y = var('x,y')
sage: ineqs = [2*x+9*y= - 0, -5*x-7*y=-5, 3*x-2*y= -6]
sage: solve_ineq(ineqs,[x,y])
On Mon, 3 May 2010 10:18:42 -0400
David Joyner wdjoy...@gmail.com wrote:
I think Sage calls Maxima and Maxima is getting i (your variable)
and I (sqrt(-1)) mixed up. I guess this is a bug, but it might be
known already.
It's reported here:
http://trac.sagemath.org/sage_trac/ticket/6882
I'm
Thank you David for your answer.
What about getting a solution over the integers?
David Joyner wrote:
I think Sage calls Maxima and Maxima is getting i (your variable)
and I (sqrt(-1)) mixed up. I guess this is a bug, but it might be
known already.
Anyway, using x's and y's might be safer:
On Mon, May 3, 2010 at 12:50 PM, Diego Ruano dru...@gmail.com wrote:
Thank you David for your answer.
What about getting a solution over the integers?
I'm sure of the best way. You could just write your own
little function that checks the conditions for each
(i,j) in a big rectangle. Also,
On Mon, May 3, 2010 at 1:21 PM, David Joyner wdjoy...@gmail.com wrote:
On Mon, May 3, 2010 at 12:50 PM, Diego Ruano dru...@gmail.com wrote:
Thank you David for your answer.
What about getting a solution over the integers?
I'm sure of the best way. You could just write your own
To correct
