Originally posted by nemesioWell done.
((9-8)+(7-4)-(3-1)-(6-5))/2 =
(1+3-2-1)/2 =
1/2
Nemesio
Note that this is not the particular solution that I was looking for, but it certainly satisfies the initial conditions. So, I'll leave this problem open if anyone wishes to come up with another solution.
-Ray.