数值函数

In order to improve the numerical stability during the solving of convection-dominated convection-diffusion problems, an upwinding local radial point interpolation method is proposed based on the local radial point interpolation method and the local upwinding weight function.

为提高对流扩散问题中对流项占优时的数值稳定性，采用局部上风式权函数，在局部径向基点插值无网格法基础上构建了上风式局部径向基点插值无网格法。

In order to deal with the numerical stability of convection dominated problems, using the local upwinding weight function, the upwinding local radial point interpolation method is proposed based on the local radial point interpolation method, and were then compared with those numerical results of the LRPIM.

为处理对流扩散问题中对流项占优时的数值稳定性问题，采用局部上风式权函数，在局部径向基点插值无网格法基础上构建了上风式局部径向基点插值无网格法。

Based on Galerkin finite element method, a new upwinding finite element numerical model suitable for modeling wind driven current in shallow lakes is derived by introducing streamline upwinding method and the selective lumping coefficient matrix scheme.

从控制方程组出发，以 Galerkin有限元法为基础，引入沿流线加权的权函数(沿流线加权的迎风有限元法)和选择性集中系数矩阵方法，推导、建立了一适合于浅水湖泊风生流计算的二维迎风有限元数值模型。

Areas in which toolboxes are available include signal processing, control systems, neural networks, fuzzy logic, wavelets, simulation, and many others.

MATLAB 的工具箱函数涉及到信号处理，控制系统，神经元网络，模糊逻辑，小波，数值模拟以及其他许多应用领域。

Binary system ; activity ; phase diagram ; spline function ; numerical computation ; computer applications ; Free terras ; activity coefficient

二元体系；活度；相图；样条函数；数值计算；计算机应用；活度系数

The simulation results of the model are consistent with the results of wind tunnel experiments. It shows macroscopically the rationality of the distribution function of lift-off velocity of saltating sand grain.

数值计算结果显示，风沙流垂向质量百分浓度与风洞实验结果符合得较好，这在宏观上说明沙粒起跳初速度分布函数的合理性。

Firstly,BEM can be used to accurately calculate the expanding stress at the tip of reamers,with regarding the soil medium as the elastomer.

采用轴对称数值方法，将三维模型转化为二维模型，再采用弹性体边界元边界方法，精确计算扩孔器端面的扩张应力，在此基础上求得扩孔器工作过程中所受的阻力和阻力矩，并通过遗传算法，以阻力和阻力矩最小为优化目标函数，对扩孔器的形状、尺寸进行优化。

This text expanded the magnetoelastic stability issue of current-carrying component from coil , pole piece to thin current-carrying plates, and used special function to differentiate the critical state of losing magnetoelastic steady, the number value of getting the relevant parameter is solved .

本文将载流构件磁弹性稳定问题由线圈、杆件拓展到载流薄板，并引入特殊函数判别磁弹性稳定问题的失稳临界状态，得到了相关参量的数值关系。

Odes for functions which are used frequently in numerical ca...

语言数值计算中常用的函数，如sin，cos的实现方式的源代码。

During simulation, first we analyze the pseudo function of horizontal well and calculate to produce the pseudo relative permeability curve of horizontal.

因此进行了水平井的的数值模拟，在模拟中，首先分析了水平井拟函数，并计算生成了水平井拟相渗曲线。

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。