Some numerical methods such as, Pade rational approximation method,Marching and bidirectional beam propagation method which are used to solveHelmhotlz equation are compared in this paper.
本文就几种解亥姆霍兹(Helmhotlz)方程的数值方法：Pade有理逼近法、Marching步进法以及双向光束传播法进行比较，并着重介绍了一种有效的双向光束传播法在光栅中的应用。
Demand Forecast of Inventory Systems Based on Rational Approximation Algorithm;
基于有理逼近算法的库存系统的需求预测
The Algorithm of Approximating a Given Matrix with a Hankel Matrix of Lower Rank and Weighted Approximations;
低秩Hankel矩阵逼近及其加权逼近的算法
rational function approximation
有理函数逼近[近似](式)
New way of approximating rational Bézier curve with polynomial curve
有理Bézier曲线的多项式逼近新方法
timate-second estimate method
中天时间逐次逼近算法
The Theory and Algorithm for Solving a Class of Matrix Nearness Problem;
求解一类矩阵最佳逼近问题的理论和算法
A Study on Theory and Algorithms of Level-Value Approximation to Global Optimization;
全局优化的水平值逼近理论与算法研究
Vector-Valued Rational Approximate Method for Structural Dynamic Reanalysis;
结构动力重分析的向量值有理逼近方法
Effective multi-Agent algorithm with roulette inversion operator for approximating linear systems
具有轮盘反转算子的多Agent算法用于线性系统逼近
integral approximation
积分逼近[近似]法
A DDFS Design with High Compression Ratio Based on QLA
基于四线逼近法的DDFS高压缩比算法
Analysis of Fuzzy Similarity-based Reasoning Method and Approximation Properties of Corresponding Fuzzy Systems
模糊相似度推理算法及其构造的模糊系统逼近性能的分析
The Research on Approximation Algorithm for NURBS Curves with Line and Circular Arc in NC;
NURBS曲线的直线与圆弧数逼近算法研究
Research and Application of Whole Fairing and Approximation Algorithm of NURBS Curve;
NURBS曲线整体光顺逼近算法研究与应用
Totally Convex Functions and the Proximal Point Algorithm in Banach Spaces;
Banach空间的完全凸函数与逼近点算法
Analysis to the Symplectic Algorithm based on Padé Approximation and its Stability;
基于Padé逼近的辛算法及其稳定性分析
Algorithms on Faired Approximation of An Offset NURBS;
NURBS曲面的等距逼近光顺算法
The Study of Degree Reduction Approximation Algorithm for Wang-ball Curves and Surfaces
Wang-ball曲线、曲面的降阶逼近算法的研究
