An approach to obtaining possible effective solution is proposed and an extension of interval number linear programming is given.
给出了求可能有效解的方法，并对区间数线性规划进行拓展。
The linear programming with interval number in target function and constraint coefficient is analyzed thoroughly.
并对约束系数和目标函数系数为区间数的线性规划问题进行了深入的分析。
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