查询词典 first approximation

Because of the cost of computation,the order of the approximation surface usually is below four.

在对采样点构建插值曲面时，响应面法（Response Surface Method，RSM）通常是对整个曲面进行插值近似，由于计算量的原因，采用的近似曲面阶数通常不超过四阶。

With this approach,the selection of weights and the estimation of approximation order simply depend on a parameter w.

该法适用于任意次数的有理Bezier曲线/面、任意的控制多边形/网格，权因子的选择和逼近度的估计都只依赖于一个参数w。

Based on the analysis and summary of basic ideas and methods,this thesis proposes two new estimation of error of higher order approximation.

方法二是在等距分布的条件下，基于三次样条插值函数的三弯距算法，通过利用节点处弯距的加权和近似计算区间中点处的二阶导数。

We investigate the order of approximation for Gn and G*n to |x|.

当f二}xl时，我们研究G。和G二对}x{的逼近阶。

Then choosing suitable transform matrix, and applying TST to it, the satisfactory approximation order of the multi-scaling vector was achieved.

选择适当的变换矩阵，对尺度向量进行双尺度相似变换，可以使其具有满意的逼近阶。

Multi-wavelets can simultaneouslyprovide perfect reconstruction, while preserving length, good performanceat the boundaries, and a high order of approximation.

多小波在进行完美重构的同时，可以保持能量，在边界具有良好的性能，具有高阶逼近。

When someone says The two boards are of equal length, we assume that the equality is reckoned to some order of approximation determined by the context; if we did not, we would be required always to use nearly equal when speaking of the dimensions of physical objects.

当有人说两块木板同样长时，我们会认为由于上下文的关系，相等可以被看作大约近似；如果我们不这样想，那么当我们谈到物体的尺寸时，就要经常使用nearly equal 。

Especially for multifrequence problems, both the order for the approximation of nonlinear functions and the iterative numbers for neural network learning will be decreased by several times.

利用这种新方法可以直接分析、辨识线性系统、双线性系统的稳定性和未知参数，并可直接求取性能指标下的最优控制律。

Fractional spline wavelets can obtain more information of image due to its fractional order of approximation when decomposing the image.

遥感图像融合作为一门新兴的技术，已被广泛应用于地形测绘和地图更新、国土资源调查、洪水监测、地质等领域。

Computer simulations validate the performance of these algorithms. And the model error of low order approximation distributed sources model, spatial frequency distributed sources model and Jocabi-Anger series expansion distributed sources model are discussed.

通过计算机仿真，验证了低阶近似分布源模型方位估计算法的性能，并且研究了分布源的低阶近似模型、空间频率模型和低阶Jacobi-Anger级数展开模型的模型误差。

When this condition occurs, inbound replication with the source partner is stopped on the destination domain controller and event ID 2042 is logged in the Directory Services event log.

计算机密码学是研究计算机信息加密、解密及其变换的科学，是数学和计算机的交义学科，也是一门新兴的学科。

Instructions: click on the thumbnails to see a larger image, then use the left-right arrow keys to scroll through the slideshow.

使用说明：滑鼠点在小图上即可放大观赏。开启后键盘左右键可用来换照片。