Model hs103 Parameters a=.5 l[1:6] = 0.1 l[7] = 0.01 End Parameters Variables x[1:7] = 6, >= l[1:7], <= 10 obj End Variables Equations 1-.5*x[1]^0.5*x[7]/(x[3]*x[6]^2)-.7*x[1]^3*x[2]*x[6]*x[7]^.5/x[3]^2 & -.2*x[3]*x[6]^(2/3)*x[7]^.25/(x[2]*x[4]^.5)>=0 1-1.3*x[2]*x[6]/(x[1]^.5*x[3]*x[5])-.8*x[3]*x[6]^2/(x[4]*x[5]) & -3.1*x[2]^.5*x[6]^(1/3)/(x[1]*x[4]^2*x[5])>=0 1-2*x[1]*x[5]*x[7]^(1/3)/(x[3]^1.5*x[6])-.1*x[2]*x[5]/ & (x[3]^.5*x[6]*x[7]^.5)-x[2]*x[3]^.5*x[5]/x[1]- & .65*x[3]*x[5]*x[7]/(x[2]^2*x[6])>=0 1-.2*x[2]*x[5]^.5*x[7]^(1/3)/(x[1]^2*x[4])-.3*x[1]^.5*x[2]^2 & *x[3]*x[4]^(1/3)*x[7]^.25/x[5]^(2/3)-.4*x[3]*x[5]*x[7]^.75/ & (x[1]^3*x[2]^2)-.5*x[4]*x[7]^.5/x[3]^2>=0 10*x[1]*x[4]^2*x[7]^a/(x[2]*x[6]^3)+15*x[3] & *x[4]/(x[1]*x[2]^2*x[5]*x[7]^0.5)+20*x[2]*x[6]/(x[1]^2*x[4]*x[5]^2) & +25*x[1]^2*x[2]^2*x[5]^0.5*x[7]/(x[3]*x[6]^2)>=100 10*x[1]*x[4]^2*x[7]^a/(x[2]*x[6]^3)+15*x[3] & *x[4]/(x[1]*x[2]^2*x[5]*x[7]^0.5)+20*x[2]*x[6]/(x[1]^2*x[4]*x[5]^2) & +25*x[1]^2*x[2]^2*x[5]^0.5*x[7]/(x[3]*x[6]^2)<=3000 ! best known objective = 543.667958 obj = 10*x[1]*x[4]^2*x[7]^a/(x[2]*x[6]^3)+15*x[3] & *x[4]/(x[1]*x[2]^2*x[5]*x[7]^0.5)+20*x[2]*x[6]/(x[1]^2*x[4]*x[5]^2) & +25*x[1]^2*x[2]^2*x[5]^0.5*x[7]/(x[3]*x[6]^2) End Equations End Model