查询词典 approximation

The rate of convergence of pointwise approximation for local bounded functions are obtained.

引入一种积分型的 Szász- Bézier算子，并研究其逼近性质，得到了此类算子对局部有界函数的逼近阶估计公

A new type of polar decomposition—weighted polar decomposition of matrices is presented and defined. Aim at this new matrix decomposition, we prove its uniqueness theorem and obtain its uniqueness conditions, and also investigate the best approximation property of weighted unitary polar factor.

矩阵的极分解和广义极分解一直是矩阵分析研究的重要内容，本文中我们对其进行了横向扩展，提出并定义了一种新的极分解形式—矩阵的加权极分解。

An appropriate selection of basis function directly influences the learning performance of a policy iteration method during the value function approximation.

在策略迭代结强化学习方法的值函数逼近过程中，基函数的合理选择直接影响方法的性能。

Without imposing any additional constraint or changing the error criteria, this dissertation extends the original CIM to solve the three dimensional LS-WMN problem (the weighted minimum number polygonal approximation problem with the line segment error criterion).

本文将其推广到三维情形，解决了三维〓范式下的LS-WMN问题（线段误差条件下的带权多边形曲线最佳逼近问题）。

We also apply RSM to the polygonal approximation of the satellite image of lake and obtain satisfactory results.

将RSM算法应用于湖泊卫星图像的多边形近似，取得了较好的近似效果。

In the third chapter, interval polynomial approximation of rational curves is introduced.

第三章主要介绍了有理曲线的区间多项式逼近。

In addition, the polynomial approximation of these breakpoints slope and curvature is continuous.

此外，近似多项式通过这些断点的斜率和曲率是连续的。

A polynomial time approximation scheme for this problem is presented.

给出了一个多项式时间近似方案。

A polynomial approximation algorithm for the problem is given.

同时，还给出了该问题的多项式时间近似算法。

However, due to the complex of computation and the need of the design, sometime we need to use polynomial approximation for a rational curves and surfaces.

然而由于计算的复杂性和设计的需要，有时我们还需要用多项式函数来逼近有理曲线和曲面。

"The operators will suffer a temporary decrease in the number of consumers and short message services as people may not like having to provide their ID cards for a phone number," Xu Junqi, vice-dean with the Policy-Making Institute of the Telecommunications Research Centre under MII, said yesterday.

信息产业部下属的通信决策研究院副主任徐俊其昨天说：&实行手机实名制后，人们可能不太情愿用身份证注册手机号，所以通信运营商会暂时面临用户减少和短信用户减少的问题。&

I don't believe in make-believe!

我不相信这些虚构的故事。