利用该算法，通过预处理、数据约减等步骤从商场营销数据库中收集顾客属性数据，消去多余数据属性。

Using the algorithm, system can collect customers' attributes data and eliminate redundant data attributes from emporium marketing database by pretreatment, data reduction and other steps.

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文中提出用高斯列主元消去法与最优化方法相结合的技术求解模拟电荷方程组，是提高精度和保证收敛的一种有效算法。

The combined method of gnass elimination and optimization is used to solve the equation of charge-simulation, and it is an effective method for increasing the accuracy and assuring the convergence.

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基本的运算法则已经形成，包括加法运算、数乘运算、加法的消去律等。

Basic operation rules have been established, including addition, positive scalar multiplication, cancellation law for addition and so on.

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