查询词典 iterative step

The method uses an implicit iterative scheme with a hyperbolic sine transformation for the matrix potential, takes the advancing front self-adaptive grid, and resolves problem of too much account in calculation to dry earth's surface by fixed grid method. Results indicate that calculation speed is increased greatly and errors are less than by fixed grid method.

该方法使用了水土势双曲正弦变换的隐式差分格式，并采取了自动向下搜索的空间网格形式，解决了干燥地表固定网格计算量过大的问题，同时计算速度大大提高，计算误差小于固定网格法的误差值。

In this thesis,the voltage stability boundary is the combined boundary which correspond to Saddle-node bifurcations and Hopf bifurcations.The closest Hopf bifurcation point is found through the proposed iterative method under the assumption that the Hopf hypersurface is continuous and convex.

因此在本论文中，在多维参数空间下，将稳定边界推广到鞍点和Hopf分岔点构成的混合稳定边界，探索性寻求Hopf分岔超平面的法向量，采用迭代算法求取系统发生最近振荡型电压失稳的负荷增长方式。

They are as following: to establish the selection method of the slaving designed quality functions according to the interrelationship among designed quality functions; to construct the measurement functions of the optimality robustness with the hypersurface characteristics around the current iterative point of designed quality functions.

具体地，根据设计性能函数之间相互关系给出了处于支配地位设计性能函数的选择方法；利用设计性能目标函数在当前迭代点附近的超曲面特征，构造设计性能目标函数的最优性健壮度量函数；按照系统有序化设计模型的最优解应同时具有可行性健壮与最优性健壮的要求，通过计算设计性能目标函数与约束函数对设计变量的波动与非设计参数的波动的一阶敏度来确定系统有序化设计模型中的健壮参数；并以此为基础建立了进一步考虑非设计参数波动对设计变量波动有影响的后健壮分析方法。

The resulting linear system, the coefficient matrix of which is, typically, a 2 x 2 block symmetric or non-symmetric and singular or non-singular indefinite matrix, is of high order and ill conditioned. In order to solve such system we have to use iterative methods with fast convergence speed.

所得的离散方程组（其系数矩阵典型地是 2 x 2 块对称或非对称，奇异或非奇异的不定矩阵）是高阶和病态的，为了求解这样的方程组我们必需使用快速收敛的迭代方法。

This paper has improved some conventional algorithms and presents the weighting iterative improved algorithm and PSD-PCG algorithm, basing on the analysis of ill-conditioned linear system of equations characteristic and origin.

本文在分析了病态线性方程组的特点和成因的基础上，对一些传统的算法进行了改进，给出了加权迭代改善法和PSD—PCG法。

An iterative method is developed to calculate the coordinates of the intersection point of an incident ray with a B-spline surface in 3D space.

探讨了用阻尼最小二乘法对B样条曲面反射器进行优化设计的方法，通过优化运算修正控制顶点Z轴坐标，使得曲面在使用扩展光源时光形分布尽可能满足设计要求。

The registration model with geometric feature constraint is composed of 6-parameter-registration model and constraint condition linear inequation, which is calculated by iterative algorithm.

在6独立参数模型中增加几何特征约束的不等约束条件组成了附有约束条件的配准模型。

The rational initial solution and speed model is commonly used in the iterative method of linear equation.

求解方程组常用的迭代法，需要一个比较合理的初始猜测解，也即是初始速度模型。

To guarantee the system stability and improve the system precision, initial weight value selecting problem for the neural network is discussed and corresponding iterative algorithm is provided.

讨论了控制器参数迭代初值选取的基本原则，并给出了在保证系统稳定性前提下参数的迭代算法。

Meanwhile, it proposed a method what is how to select iterative initial value.

同时，给出了一种基于K-means聚类算法的迭代初值选取方法。

It was just a normal day of school

那只是上学的普通一天

Which is a very good reference in this issue.

这是一个在这个问题上很好的参考。