收敛

Contaminated data ; regression model ; coefficient of contamination ; density function ; convergence in L_2 norm

污染数据；回归模型；污染系数；密度估计； L_2收敛性

And its convergence property, asymptotically converges in probability, is proved. Numerical results on some typical optimization problems show that the algorithm proposed is efficient.

数值结果表明，对于维数较高的连续函数优化问题，采用基于均匀分布的进化策略能够快速有效地收敛到全局极小点。

The algorithm speeds up the solution convergence while preserving the sparse matrix structure.

建立了瞬态涡流场问题矩量法解的时域多尺度分析法，加速了解的收敛性，同时又保持了解矩阵的稀疏性。

Where ,is the coefficients of power series .The radius of convergence is given by

其中，是幂级数的相邻两项的系数，则这幂级数的收敛半径为

A power series with a positive radius of convergence can be made into a

将一个收敛半径是正数的幂级数的变量取为复数，就可以定义一个

Expand the integral from 0 to x of sin/t and find the radius of convergence

展开sin/t在0到x上的积分，并找出收敛半径

And the radius of convergence of the differentiated series is the same as for the orginal series.

逐项求导后所得到的幂级数和原级数有相同的收敛半径。

And the radius of the convergence set of the differentiated series is the same as for the orginal series.

定理5 如果幂级数的收敛半径为则其调和函数在内可导，且有逐项求导公式

Power series, radius of convergence; function that can be expanded in a power series on an interval.

幂级数；收敛半径；可展开为幂级数的函数。

The radius of convergence can be characterized by the following theorem

收敛半径可以被如下定理刻画

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐