二次规划问题可以以下形式来描述：. f(x)=(1/2)x^TQx + ... 如果有至少一个向量x满足约束而且f(x)在可行域有下界，二次规划问题就有一个全局最小值x。-Quadratic programming problem can be described by the following form:. F (x) = (1/2) x ^ TQx+ ... if there is at least one vector x satisfies the constraints and f (x) in the feasible region bounded from below, quadratic programming questions have a global minimum x.