Linear programming is a single goal programming method, the goal function get the maximum or minimum on the basis of limit condition.

线性规划是一种单目标规划，根据有关的约束条件得出目标函数的最大值或最小值。

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In this paper, an area formula of polygon of inscribed or circumscribed ellipse is presented and the condition that the area reaches maximum value or minimum value is discussed.

提出了椭园内接或外切多边形面积公式，并讨论了其面积达到最大值与最小值的条件。

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