Model hs38 Variables x[1] = -3, >=-10, <=10 x[2] = -1, >=-10, <=10 x[3] = -3, >=-10, <=10 x[4] = -1, >=-10, <=10 obj End Variables Equations ! best known objective = 0 obj = 100*(x[2]-x[1]^2)^2 + (1-x[1])^2 + 90*(x[4]-x[3]^2)^2 + (1-x[3])^2 + 10.1*( (x[2]-1)^2 + (x[4]-1)^2 ) + 19.8*(x[2]-1)*(x[4]-1) End Equations End Model