Real Analysis on matlab

Let me cite an example... here..

w_upper= [7 10.5 13 28 28 28 40.5]        % 7x1   upper limit
w_lower=[-7 -4 -1 21.5 21.5 21.5 34.9110] % 7x1   lower limit

B is the initial Matrix i posted. 7 by 9 matrix

**W is a proper subset of interior of ( the image of U with respect to linear mapping associated with matrix B.

EW \subset interior{BU}

xdot = Bu(t)-Ew(t)

u is a 9x1

E is an identity matrix.

x is a 7x1

     1     0     0    -1     0     0     0     0     0;
     0     1     0     0    -1     0     0     0     0;
     0     0     1     0     0    -1     0     0     0;
     1     1     0     0     0     0    -1     0     0;
     1     0     1     0     0     0     0    -1     0;
     0     1     1     0     0     0     0     0    -1;
     1     1     1     0     0     0     0     0     0;

BU is the image of U with respect to the linear mapping associated to the matrix B.

While select the upper and lower limit the condition in the picture must be met..

All i want to achieve is an upper and lower limit for u(t) such that the condition * is met. Also if u and w has a upper and lower limit then x should also have a limit..