variables
  x[2] in (0; 0);

function f(x[2])
  return((-1 + exp(x(1)))/2 - x(1) + x(2); -x(1) + cos(x(1))*x(1) - x(2) + x(1)*x(2));
end

function v(u[2])
  return(u(1)^2 + u(2)^2);
end
