# Model tp012
var x_1;
let x_1 := 0;
var x_2;
let x_2 := 0;
minimize obj: (1/2)*x_1^2 + x_2^2 - x_1*x_2 - 7*x_1 - 7*x_2;
subject to ci_1: 25 - 4*x_1^2 - x_2^2 >= 0;
display obj;
solve;
display obj;
display x_1;
display x_2;
display obj + 30;
display x_1 - 2;
display x_2 - 3;