迭代计算

Multi-point sampling criterion realized sequential iteration process, and improved the global optimum.

多点加点准则实现了序列的迭代优化，在保证计算效率的同时提高了对全局最优解的逼近程度。

With a method of series expansion for image reconstruction, there exists great difficulties in terms of slow reconstruction due to bulk data to deal with.

摘要由投影重建图像的迭代算法有抑制噪声等优点，但其投影矩阵的计算量大、影响重建速度。

VB programmers using numerical solution of the Jacobian iterative formula.

详细说明：用VB程序编写的数值计算解雅克比迭代公式。

In order to achieve the stochastic inversion scheme, the stochastic approximation expectation maximum algorithm is introduced, the inversion at each iteration, the automatic modification of the statistical parameters to speed up the computing speed, improves accuracy and stability of the inversion.

为了实现所提出的随机反演理论，引入了随机近似最大期望算法，在反演的每次迭代后，自动修改各统计参数，加快了计算速度，提高了反演精度和稳定性。

The algorithm does not computer any derivatives and some iterative points need not to be generated strictly decreasing,but we can also obtain the convergence.

该方法无需计算任何梯度信息且不要求迭代点的函数值严格减小，但仍然可以保证算法的收敛性。

A kind of finite element analyzing software "ANSYS" is used to calculate the temperature field of cable system; Finally, Subtense truncation approach is used to calculate the ampacity of cable system with equal load.

根据地下直埋电缆的温度场特性，将开域场转化为四个边分别符合第一、二和三类边界条件的四边形有界热场问题，然后利用有限元法计算场域内的温度场分布，最后用迭代的方法确定电力电缆的载流量。

During the search process,a lot of codewords can be rejected by utilizing the relationship among the sum of the input vector,the sums of the codewords and MSE.

在迭代过程中，利用输入矢量的和值、各码字的和值以及均方误差三者之间的各种特性排除大部分候选码字而免去许多均方误差计算。

The algorithm is the combination of the method with global convergence and thatwith locally superlinear convergence.

其特点之一是该方法在每步迭代中只需要计算一个或三个具有相同系数矩阵的线性方程组。

Based on analysis of numerical methods to solve seepage free surface, global composite element iteration is presented in this paper.

基于对渗流自由面数值求解方法的分析，提出了复合单元全域迭代法，并编制了有限元计算程序。

The application of polar coordinates system in the CNC LATHE-MILLING;2. A fast particle-moving algorithm for particle-in-cell simulation of plasmas in polar coordinates system was proposed, in which the local rectangular coordinates approximation was used in the area near the position of the charged particle at every time step.

提出了一种在极坐标系下快速推进带电粒子的等离子体粒子模拟算法，该算法在每个时间步长内对带电粒子位置附近的区域采用局部直角坐标系近似，并通过坐标变换，得到粒子运动方程求解的显式格式，从而避免了极坐标系下隐式格式直接迭代求解所带来的容许误差，并提高了计算效率。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。