tions on output set assignments consider the system of equations from Fig. 2-5, defined structurally by f(ili2) g(i ,i2) x y JlJ4 J2J3 j274 J193 ji(il): L = L. U = i A= 1 j3(i2): i2 j2(il): L = L. U = U A 11 j4(i2): i2 U A with IDM shown index outputs the following fl1 f12 f21 f22 911 912 921 922 =2 =l i2+1 in Fig. 2-6. Assigning x to f indicated by the circles on the incidence matrix: X2 xll X12 X21 X22 Y11 Y12 Y13 Y91 and y IDM's ( x x x x ( x X X x x x ) x x x ( x x x x x x x ( x x x ( x x X X Y22 Y23 to g and making the in Fig. 2-6, we have with ii: L U A =1 = 2 =1 i2: L = 1