A computationally effective implicit difference approximation was proposed.
提出了一个计算有效的隐式差分近似。
Two new boundary conditions are presented directly by a difference approximation.
利用简单而方便的直接差分方法构造了两个新的人工边界条件。
The G. K. S. Stability of the Hyperbolic Difference Approximation with Two Boundaries Initial-Value Problems.
关于双曲型偏微分方程式差分逼近的双边值问题的G.K.S。稳定性。
The difference approximation is called the partial discretization method, and the overall fitting the overall discretization method.
文中称差分近似为局部离散化方法，称整体拟合为整体离散化方法。
Then the new step function space is introduced and stability problem for the finite difference scheme is discussed by means of variational approximation method.
然后引入新的步长函数空间，并在这个空间上，采用变分近似法讨论该格式的稳定性问题。
Then the new function space is introduced and the stability problem for the finite difference scheme is discussed by means of variational approximation method in this function space.
然后引入新的函数空间，并在这个空间上，采用变分近似法讨论了该格式的稳定性问题。
The slope of flexibility difference was introduced to locate possible damage elements, and the damage extent was estimated using the second order eigen-sensitivity approximation method.
引入柔度差值斜率的概念确定结构可能出现损伤单元的位置，采用基于二阶特征灵敏度的方法确定可能损伤单元的损伤程度。
Based on the classical theory of electromagnetism, the relation and the difference between OAM and the parameter of the beam in paraxial approximation are analyzed.
从经典电磁场理论出发，主要介绍了傍轴近似条件下，光束的轨道角动量和光束的参数之间的关系。
The TM set of equations can be solved using a finite difference time domain (FDTD) approximation that is second-order accurate in both space and time.
采用时间和空间均为二阶精确的有限差分方法，将偏微分方程进行差分化。这样，空间的电磁场可由时间域有限差分法（FDTD）来求解。
The TM set of equations can be solved using a finite difference time domain (FDTD) approximation that is second-order accurate in both space and time.
采用时间和空间均为二阶精确的有限差分方法，将偏微分方程进行差分化。这样，空间的电磁场可由时间域有限差分法（FDTD）来求解。
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