数值方法

Eigenfunction of the coefficient matrix is used to analyze the stability of ordinary differential equations, so that the developing ...

还讨论了控制方程的稳定性对数值方法的重要影响，并得到步长的取值范围。

Matrix iteration method can be employed to figure out the first eigenvalue and eigenvector of a matrix.

矩阵迭代法是求矩阵的第一阶特征值与特征向量的一种数值方法。

Based on theoretical study and test, by using finite element numerical method, the force and deformation of casing with cement sheath under nonuniform load is analyzed, and the effect of two sensentive parameters, the nonuniform load ratio and ellipticity, on the failure of casing is discussed.

在已有的理论研究与试验工作的基础上，采用有限元数值方法，分析计算了受非均匀地应力作用下套管-水泥环结构的受力与变形，讨论了两个敏感参数——非均匀载荷比和套管椭圆度对套管失效的影响问题。

In Chapter Ⅲ, the fully implicit numerical method for the discrete solution of Euler equations is introduced.

第三章主要介绍了本文求解离散化Euler方程的隐式数值方法。

Yet, the number of instance the exact solution can be found byanalytical means is very limited.

因此，有必要用数值方法得到微分方程的近似解。

The results of numerical calculation conform the exactness and validity of theoretical analysis and circuit design.

结合理论分析和实验结果，用数值方法进行了对照分析，进一步验证理论分析和实验电路设计的正确性和有效性。

Using matlab to achieve numerical method of electromagnetic field inside the finite difference and finite element method.

利用matlab实现电磁场数值方法里面的有限差分与有限元法。

The numerical simulation revealed the motion of phase interface into the phase change material under the first boundary condition.

为了开发高效的热能存储设备，本文提出了采用针翅管以强化相变蓄热设备传热的新结构，采用数值方法模拟了相变材料在该结构中融化的瞬态三维传热问题，得到了在第一类边界条件下相变材料融化过程的界面移动规律；并与光管相比，以说明针翅的强化传热作用。

The numerical simulation revealed the motion regularity of phase interface into the phase change material under the first boundary condition.

摘 要：为了开发高效的热能存储设备，提出了采用针翅管强化相变蓄热设备传热的新结构，采用数值方法模拟了相变材料在该结构中融化的瞬态三维传热问题，得到了在第一类边界条件下相变材料融化过程的界面移动规律；并与光管相比，说明针翅的强化传热作用。

The main purpose of this paper is to study high-order accuracy and high resolution numerical methods on fluid dynamics equations.

本文的主要目的是研究流体力学方程的高精度高分辨率的数值方法，其主要内容包括以下几个方面： 1。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。