Model hs66 Variables x[1] = 0 x[2] = 1.05 x[3] = 2.9 obj End Variables Equations x[2] - exp(x[1]) >= 0 x[3] - exp(x[2]) >= 0 0 <= x[1] <= 100 0 <= x[2] <= 100 0 <= x[3] <= 10 ! best known objective = 0.5181632741 obj = 0.2*x[3] - 0.8*x[1] End Equations End Model