But this partial differential equation can not be directly integral, so usually use Navier method, Rayleigh Ritz method and finite difference method and other methods.
但这一偏微分方程不能直接积分，所以通常用纳维法、瑞利-里兹法、有限差分方法等方法求解。
The mixed partial differential terms of time variables and space variables in the pseudo-parabolic equation make the discussion of the difference scheme more difficult.
伪抛物型方程中关于时间与空间变量的混合偏导项给差分格式的讨论带来了一定难度。
By deriving balanced differential equation of buried pipeline, adopt finite difference method to analyze and calculate the effect of axial build-in force on pipeline transversely displacement.
推导出埋地管道的平衡微分方程，采用有限差分法分析并计算了轴向嵌固力对管道横向位移的影响。
In this paper we constructed an exponentially fitted difference scheme for singular perturbation problem of hyperbolic-parabolic partial differential equation.
本文对双曲-抛物偏微分方程奇异摄动问题构造了一个指数型拟合差分格式。
Studying Brownian motion by the difference equation, We can find that the partial differential equation describing the Brownian particle motion is a diffusion equation in mathematical physics.
引入差分方程研究布朗运动，会发现极限情况下的布朗运动所遵循的偏微分方程就是数学物理方程中的扩散方程。
The difference method is efficient and practical method to solve the partial differential equation, which has some advantages of a little computational effort and high accuracy.
差分方法是解偏微分方程的有效而实用的方法，它的计算量小，精确度高。
This paper studies the necessary and sufficient condition of uniformly convergent difference scheme for the elliptic-parabolic partial differential equation with a small parameter.
本文研究小参数椭圆-抛物偏微分方程一致收敛差分格式的充要条件。
In solving partial differential equation (i. e. pricing model), the author adopted the finite difference method to get its numerical solution.
本文采用有限差分法求解偏微分方程(即定价模型)的数值解。
The existence of periodic solutions for a class of impulsive differential equations with piecewise constant argument is studied by constructing periodic sequence solutions of difference equation.
通过构造差分方程的周期数列解，研究了一类具有分段常数变元的脉冲微分方程周期解的存在性。
At first we can get the Lagrangian function from the elliptic equation, then replace differential coefficient by difference and get the discrete Lagrangian function.
给定一个椭圆方程，我们先找出这个方程的拉氏函数，用差分代替微分，得到离散的拉氏函数。
The alternating direction difference method for the two-dimensional nonlinear delay parabolic differential equation is given.
研究二维非线性延迟抛物型微分方程交替方向差分方法。
In this paper, the second order fully discrete difference method for a partial integro-differential equation is considered.
本文给出了数值求解一类偏积分微分方程的二阶全离散差分格式。
This paper made use of oscillations of delay differential equation and difference equation, established oscillation criteria for nonlinear difference equation with continuous argument.
通过时滞微分方程和离散差分方程的振动性，建立了具有连续变量的非线性差分方程的振动性条件。
Two-point boundary value problems of second order mixed type integro-differential-difference equation is studied by means of differential inequality theories.
基于时滞微分不等式的方法，提出此网络在平衡点的渐近指数稳定的充分条件。
Two-point boundary value problems of second order Hammerstein type integro-differential-difference equation is studied by means of differential inequality theories.
基于时滞微分不等式的方法，提出此网络在平衡点的渐近指数稳定的充分条件。
A finite difference method based on differential-integral equation is presented for the solution of Navier-Stokes equations for incompressible viscous flow.
本文提出了基于微分-积分方程组求解n - S方程的有限差分法求解不可压缩实际粘性流体绕孤立翼型流动。
The analytical truncation error formulas of a partial differential equation are given for the upstream scheme and the centered difference scheme, respectively.
然后引入参考解的办法， 用来分离更为一般的微分方程求解过程中的截断误差和舍入误差。
The analytical truncation error formulas of a partial differential equation are given for the upstream scheme and the centered difference scheme, respectively.
然后引入参考解的办法， 用来分离更为一般的微分方程求解过程中的截断误差和舍入误差。
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