查询词典 approximation error

In the second chapter, we study the mixed finite element method of Oldroyd B type viscoelastic fluid flow model, and we give the existence and uniqueness of approximation solution and error bounded.

第二章讨论用混合有限元方法去研究Oldroyd B型流体流动问题的解的存在唯一性，并给出了逼近解的误差估计。

It shows that the optimal control given by Yoshisuke Misaka is approximate. Error of the approximation and scope of application of the approximate algorithm are discussed.

本文用极大值原理对文献[1]的带钢轧机厚度的前馈最优控制算式进行了推导，证明了美坂佳助所给出的前馈最优控制是近似的，讨论了这一近似的影响及其适用范围。

ArcSin approximation with minimal error must be found.

在近似的 ArcSin 中，在最小误差允许范围内，肯定可以找到这些值。

To reduce the distortion of this,the beginning of this article proposes an effective allocation model based on the performance optimization method;To achieve such a rapid and low complexity of the distribution,and it proposes a semiregular mesh geometry coding related to the reconstruction of the mean square error of approximation.

为了降低这种失真，开始部分提出了一种有效的基于位分配模型的性能优化方法；为了实现这种快速和低复杂度的分配方法，提出了和半规则网格几何编码相关的重建均方误差的近似方法。

The parameters A, B, C and D define the shape of the curve for the function and the values for a fit to theArcSin approximation with minimal error must be found.

参数 A， B， C 和 D 决定了函数曲线的形状。在近似的 ArcSin 中，在最小误差允许范围内，肯定存在这些值。

In order to investigate the performance of Iterative Detection in Golden Code system and reduce the complexity of the Iterative Detection algorithm, the Gaussian Approximation and Minimum Mean Square Error methods are proposed to obtain the soft information of each bit.

为研究级联信道编码的Golden码的迭代检测性能及降低迭代检测算法的复杂度，提出采用高斯近似和最小均方误差算法来计算迭代检测过程中所需的比特软信息。

One bases on function value and another bases on arithmetic average difference quotient. In this paper, the author mainly studies the approximation properties of both the function value and the derivative of two kinds of splines interpolation mentioned before, and the optimal error constants are obtained finally.

文中分别就这两类插值样条的函数值及一阶导数的逼近性质展开讨论，相应得出这两种插值函数在被插函数分别为一阶连续可导和二阶连续可导情况下的最佳误差常数。

Though comparing Canny operator and center B spline dyadic wavelet, the following conclusion is proven in this dissertation: a Center B spline function has tight support and Canny operator hasn't. b Center B spline function asymptotic convergence to Gaussian function and the derivative of Center B spline function asymptotic convergence to Canny operator. c The derivative of fourth order center spline B function is more suitable as a optimal edge detector than Canny operator. d Center B spline function can balance the smoothing and approximation of original data, and the fourth center B spline function is the only optimal solution of two order smoothing problem. e The error between the valve of time-frequency uncertainty of the fourth center B spline function and the lower bound of time-frequency uncertainty does not exceed 0.143% of the lower bound. f The derivative of center spline B function can construct a stability dyadic wavelet and can give a fast algorithm for multiscale edge detection, but Canny operator can do neither.

作者给出了Canny算子与中心B样条二进小波严格的比较证明，得出如下结论：a中心B样条函数具有紧支集，Canny算子不具有紧支集。b中心B样条函数的极限收敛于高斯函数，中心B样条函数的导数收敛于Canny算子。c四阶中心B样条函数的导数比Canny算子更接近最佳边缘检测滤波器。d中心B样条函数比高斯函数更能兼顾对原函数平滑和逼近的折中要求，并且四阶中心B样条函数是二阶逼近问题的唯一最优解。e四阶中心B样条函数的时频测不准关系值与时频测不准关系下界的逼近误差不超过0.143％。f中心B样条函数的导数可以构成稳定的二进小波，存在快速的多尺度算法；而Canny算子不构成稳定的二进小波，无法给出快速的多尺度算法。

The error analysis of asymptotic approximation of finite series expansion is also given. Our method avoids choosing the integral length of the reentrant comer, and can be used to calculate the charge on the conductor conveniently and efficiently. Numerical examples are presented to demonstrate the efficiency of the method.

本文算法克服了邓肯矫正需要选择角点积分区域的不足，有效地校正了导体角点奇异性引起的电容参数提取的计算误差，最后给出了算法的数值实验与分析结果。

The error analysis of asymptotic approximation of finite series expansion is also given. Ourmethod avoids choosing the integral length of the reentrant corner, and can be used tocalculate the charge of the conductor conveniently and efficiently.

该算法克服了邓肯矫正需要选择角点积分区域的不足，有效地校正了导体角点奇异性引起的电容参数提取的计算误差，且计算精度与稳定性都比较好。

He knows that he's one of the mostdominant players in the NBA right now.

我知道他现在是联盟里最有统治力的球员之一了。

Using analysis method of BCG , the dissertation analyzed the management of voluntary service organizations .

利用BCG分析方法对我国的志愿服务组织管理进行了分析。