The paper emphasizes on the methods of polynomial surface approximation which is part of numerical approximations, and analyzes the precision of polynomial function model through the measured data.
着重介绍了数值逼近方法中的多项式曲面函数模型逼近法，并通过实测数据对多项式函数模型的精度进行分析。
Several direct iterative numerical methods for optimal approximation are described in this chapter.
一些直接迭代数值方法最佳逼近中描述这一章。
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