$************************************************************* $ MINLP Test Problem for OA/ER/AP. $ $ C. A. Floudas, "Nonlinear and Mixed-Integer Optimization: $ Fundamentals and Applications", Oxford University Press, $ 1995, p 171. $ $ Optimal Solution: 1.07654 $************************************************************* DECLARATIONS {{ XVAR {x1,x2}; YVAR {y}; BINA {y}; XLBD {0.2,-2.22554}; XUBD {1,-1}; }} MODEL {{ MIN: -0.7*y + 5*(x1 - 0.5)^2 + 0.8; con1: -exp[x1 - 0.2] - x2 =l=0; con2: x2 + 1.1*y =l= -1; con3: x1 - 1.2*y =l= 0.2; }}