Model hs99 Parameters a[1] = 0 a[2] = 50 a[3] = 50 a[4] = 75 a[5] = 75 a[6] = 75 a[7] = 100 a[8] = 100 b = 32 t[1] = 0 t[2] = 25 t[3] = 50 t[4] = 100 t[5] = 150 t[6] = 200 t[7] = 290 t[8] = 380 End Parameters Variables x[1:8] = 0.5, >=0, <=1.58 r[1:8] q[1:8] s[1:8] obj[1:7] End Variables Equations r[1] = 0 r[2:8] = a[2:8]*(t[2:8]-t[1:7])*cos(x[1:7]) + r[1:7] q[1] = 0 q[2:8] = 0.5*(t[2:8]-t[1:7])^2*(a[2:8]*sin(x[1:7]) - b) + (t[2:8]-t[1:7])*s[1:7] + q[1:7] q[8] = 1.0e+5 s[1] = 0 s[2:8] = (t[2:8]-t[1:7])*(a[2:8]*sin(x[1:7]) - b) + s[1:7] s[8] = 1.0e+3 ! best known objective = -0.831079892e+9 obj[1:7] = -(a[2:8]*(t[2:8]-t[1:7])*cos(x[1:7]))^2 ! - r[8]^2 End Equations End Model