Thread Subject: solving a linear system of inequalities

Let A=[1 -2 1 3 1;-1 1/2 -3 2 3;1 1 1 -3 -4;1 -3 2 2 4;-3 1 -2 1 2;3 0 -3 1 2]
and b=[0;0;0;0;0]
Ax >= b

How do I solve this in Matlab?
I know how to solve if these are equalities, but not for inequalities.

Thank you so much!

"Loners Hicks" <hick1416@bellsouth.net> wrote in message <hkt395$de5$1@fred.mathworks.com>...
> Let A=[1 -2 1 3 1;-1 1/2 -3 2 3;1 1 1 -3 -4;1 -3 2 2 4;-3 1 -2 1 2;3 0 -3 1 2]
> and b=[0;0;0;0;0]
> Ax >= b
>
> How do I solve this in Matlab?
> I know how to solve if these are equalities, but not for inequalities.
>
> Thank you so much!

There is no "solution" possible. The solution to
such a system will be any of an infinite number
points - a set. A system of linear inequalities
like this defines a polyhedron, which may extend
to infinity if the set is unbounded.

John