水平向量 meaning in English

horizontal vector

Activity level vector
活动水平向量
The numerical results show that the above method has some improvement over those of [ 2 ] and the one based on quadratic model
结果表明，该算法比二次模型有效，比[ 2 ]中水平向量的取法也有效。
For the quasi - newton type trust region method based on the conic model solving unconstrained optimization , horizon vector of the conic medel is proposed , the unique optimal parameter is determined and the numerical results are given in this paper
摘要对于求解无约束优化问题的锥模型拟牛顿型信赖域方法，本文主要讨论了水平向量的选取及最优参数的确定，并给出了数值试验结果。