#
# written in AMPL by Yu-Ju Kuo and Hans D. Mittelmann, 6/2001
param N:=2;
param NH:=1;
param NG:=1;
var x{1..N}:=2;
minimize obj: (x[1]-2)^2+(x[2]-1)^2+0.04/(-x[1]^2/4-x[2]^2+1)
    +(x[1]-2*x[2]+1)^2/0.2;
s.t. hx: x[1]-2*x[2]+1==0;
s.t. gx: -(-x[1]^2/4-x[2]^2+1)-0.5>=0;