差分法

They are different only in that the lower right block is different, one is zero matrix, the other is nonzero symmetric positive semidefinite matrix.

论文中应用了两种离散鞍点问题的方法，一种是低阶混合协调有限元方法，另一种是M.A.C格式的有限差分法。

Taking water as an example, the pressure gradient was numerically calculated by finite difference method.

采用有限差分法对水在内管做行星运动的环空中流动的压力梯度进行了数值计算。

As the second chapter, the finite difference time domain method consume memory, and the promoter region is directly proportional to the volume, and therefore the regional split of the efficiency and speed-up ratio in parallel there is a certain effect.

正如第二章所讲，时域有限差分法耗用内存和子区域的体积是成正比的，因此区域分割对并行效率和加速比是有一定影响的。

Finite difference method for solving mathematical models, and through examples of well calculated and analyzed for heavy oil well electric heating rod pump production program designed to provide scientific basis.

有限差分法求解数学模型，并通过实例井计算分析，为稠油有杆泵电加热井生产方案设计提供科学依据。

The heat transfer in ladle wall is described with non-steady differential difference equations under one-dimension cylindrical coordinates and rectangular coordinates.

其中包壁的传热分别采用圆柱坐标和直角坐标下的一维非稳态导热微分方程及其初始条件和第三类边界条件来描述，用有限差分法求解。

The complex objects and their computational region are transformed by Thompson transformation to a regular region.By applying Finite Difference.Time Domain method,the field distribution in regular region is solved conveniently.

该方法先利用微分-Thompson变换将形体变换为计算域内的规则形体，再用时域有限差分法在计算域内求出场分布，由变换的一一对应关系直接得出物理域内的场值。

In order to investigate and develop numerical calculation method for Schr odinger equation, we apply the finite difference method to eigenvalue problems in quantum mechanics.

为研究和发展薛定谔方程的数值计算方法，本文将有限差分法应用到量子力学求解薛定谔方程本征值问题。

Its outputs include the sigmoidal function to realize I-V nonlinear transfer and its derivative using the forward differential method.

它不仅产生S型函数，完成非线性I -V转换；还利用前向差分法，产生S型函数的导数。

The application usually dictates whether the single-ended or differential method should be used for switching.

应用通常规定使用单端或差分法进行切换。

In this dissertation, the numerical method solving the model equation influid motion in some sense has solved some tough problems which traditionalmethods cannot, as in the case of capturing shockwave, enhancing resolution, andspeeding computation. In terms of capturing shockwave and enhancing resolution,this method has proved to be superior to difference method; in terms of speedingcomputation, superior to TVD scheme. Particularly, it is highly effective to solveodd singular solution problems.

本文研究的求解描述流体运动的若干模型方程的数值方法，在一定程度上解决了传统方法在某些方面的难点问题，如在捕捉激波、提高分辨率方面优于差分法，在计算速度方面优于TVD格式，特别是对处理有奇异解的问题很有效。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。