查询词典 differentiation of implicit function

And then,we propose an implicit finite difference scheme for the similar problems.

接着，本文提出一个隐式差分格式求解上述类似问题。

This paper gives a 45 degree up-going wave equation with an absorbing layer and constructs its implicit difference scheme.

给出了附加吸收层的三维45°上行波方程，构造了该方程的一种隐式差分格式。

In this chapter, a two-dimensional implicit difference scheme of the linear IBVP is designed, and the stability of the homogeneous scheme is proved by the method of separation of variable. At last, some numerical examples are presented. And the results are consistent with the theoretical result.

在本章中，建立了相应初边值问题的二维隐式格式，并利用分离变量法讨论了其中的一类特殊情形——齐次情形差分格式的稳定性，最后给出了数值算例，得到的数值结果与理论结果一致。

Solving Parabolic Equations PR alternating direction implicit difference scheme of matlab program.

详细说明：求解抛物型方程的交替隐方向P-R差分格式的matlab程序实现。

It adopts the variable step length scheme to evaluate at the connection point, and adopts the implicit difference scheme to evaluate in the same rod.

3运用在均质处采用隐式差分格式、节点处采用变步长的有限差分的混合方法求解抽油杆柱的波动方程。

The Preissman's 4 points implicit finite difference scheme is applied to develop 1-D river flow model which is provided with the capacity of managing of weirs, bridges and cross regulators.

同时，系统地展示了模型在清河水环境治理研究中的应用，提出了解决清河水环境污染治理的方案。

In chapter two,We present a globally nonlinear implicit difference scheme,i.e., a nonlinear iterative algorithma has to be used to solve the system of the nonlinear algebraic equation at each discrete time step.

第二章构造了一个非线性隐差分格式，在每一个时间层上需要迭代求解非线性方程组，该格式可以保证离散电荷和离散能守恒。

This method adopts the variable step length scheme to evaluate at the connection point, and adopts the implicit difference scheme to evaluate in the same rod.

在进行数值求解时，在抽油杆柱均质杆段处采用隐式差分格式，而抽油杆柱在组合杆柱相邻联结点处则采用变步长的有限差分格式。

In this paper, a high order accuracy difference method is presented for solving unsteady convection diffusion equation by using Implicit Perturbation Finite Difference scheme.

本文利用摄动差分思想，对定常对流扩散方程中的空间微商系数进行摄动展开，展开幂级数系数通过消去摄动格式修正微分方程的截断误差项求出，由此获得方程的隐式摄动差分格式，将此方法应用于非定常对流扩散方程，并加以修正，得到该方程的修正隐式摄动差分格式。

In the two-dimensional simulation, the fully implicit difference scheme is used for the continuity equations to ensure numerical stability; Jacobian iteration is used to solve the difference equations, and only nonzero elements in the coefficient matrixes of these equations are dealt with, which reduce the requirement for memory and shorten the calculation time.

在两维模拟计算中，对连续性方程采用全隐式差分方案以保证数值稳定性；运用雅可比迭代法求解差分方程组，并且在求解过程中，只对差分方程组系数矩阵中的非零元素进行处理，因此减少了对内存的需求量，而且缩短了计算时间。

Don not attempt to do something which you can not to do.

不要企图做那些办不到的事情。

The expression of CTGF and TNF-αweredetected by immunochemistry and the number of Clara Cells was calculated.

光镜下观察肺组织的病理变化，采用免疫组化染色观察肺组织中结缔组织生长因子和肿瘤坏死因子-α的表达和Clara细胞的数量。