本文对现有的变分不等式问题的二次外梯度投影算法进行分析，并对可行域为球的二次外梯度投影算法的计算过程进行简化。
This paper makes an analysis of this quadratic outer gradient project algorithms and simplifies the process of the computation of projection needed in this method for the case of domain being a ball.
简要介绍了洛伦茨曲线与基尼系数的概念，并简化了基尼系数计算公式，对计算过程中数据的收集、分组和排序等进行了探讨。
After introducing the concepts of Lorenz curve and Gini coefficient briefly, We simplified the formulas of Gini coefficient, discussed the data collecting, grouping and sequencing.
简要介绍了洛伦茨曲线与基尼系数的概念，并简化了基尼系数计算公式，对计算过程中数据的收集、分组和排序等进行了探讨。
After introducing the concepts of Lorenz curve and Gini coefficient briefly, We simplified the formulas of Gini coefficient, discussed the data collecting, grouping and sequencing.
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