This paper presents a simplex method without using the artificial variables. It is suited to solve general linear programming problem.

本文提出一种不用人工变量，适用于求解一般线性规划问题的单纯形法。

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The algorithm solves the quadric programming problem without adding slack, remaining and artificial variables while its efficiency is very high and it operates very easily.

所运用的线性不等式组的一种旋转算法避免了通常处理二次规划问题所需的松弛变量、剩余变量和人工变量，操作简便、计算效率高。

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There is the special process for the techniques of plasma nitriding, which includes some complex controlling variables, a high influential artificial factor and so on.

针对等离子体渗氮工艺过程特殊，控制量变化复杂，人为因素影响较大等情况。

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In a 2007 study at the University of South Carolina at Columbia, 25 experienced swimmers did six timed trials while sticking to an artificial schedule that controlled for variables like sleep, diet and other factors.

WSJ: Your Body's Best Time for Everything