$************************************************************* $ MINLP Test Problem for GBD $ $ C. A. Floudas, "Nonlinear and Mixed-Integer Optimization: $ Fundamentals and Applications", Oxford University Press $ 1995, p. 133. $ $ Optimal Soluion: 2.2 $************************************************************* DECLARATIONS {{ XVAR {x}; YVAR {y1, y2, y3}; BINA {y1, y2, y3}; XLBD {0.2}; XUBD {1.0}; YSTP {1,1,1}; }} MODEL {{ MIN: y1 + y2 + y3 + 5*x^2; con1: 3*x - y1 - y2 =l= 0; con2: -x + 0.1*y2 + 0.25*y3 =l= 0; con3: y1 + y2 + y3 =g= 2; con4: y1 + y2 + 2*(y3 - 1) =g= 0; }}