微分的

Put the discrete algebraic equations of initial derivative conditions and algebraic equation system of governing differential equation together to form a new algebraic system.

采用重心Lagrange插值近似未知函数，推导了未知函数各阶导数微分矩阵的显式表达式，建立了求解二阶常微分方程初值问题的重心Lagrange插值配点法。

Chapter 1 gives a brief introduction to basic contents and methods of system identification and solutions of certain prob— lems met during the process of identificationIn chapter 2, the identification is accomplished by transforming the linear differential equation of a dynamic system into an algebraic form via block pulse functions .

第二章介绍采用正交函数BPF将含有未知参数的系统线性微分方程转化为代数向量方程求解，获取表征系统特性的传递函数或微分方程参数而达到辨识目的。

Nonlinear elliptic partial different equations of second order is amain branch of nonlinear partial different equations.It has many ap-plications in mathematics,physics,science and technology,engineer-ing.

二阶非线性椭圆型偏微分方程是非线性偏微分方程的重要分支，它在数学、物理、科技和工程中有着广泛的应用。

Then using classical fractional differential G-L definition deduces fractional order differential difference function and constructs an approximate fractional order differential Tiansi module.

然后由经典的分数阶微分定义出发，推导出了分数阶差分方程，构建了近似的分数阶Tiansi微分模板。

In this paper, the domain decomposition method is used for the elliptical boundary problems on a pentagonal region. In every sub-domain, we solve the partial differential equations with TDQ method, namely, triangular differential quadrature domain decomposition method.

为求解五边形上的椭圆型微分方程边值问题，我们借助了区域分裂法(domain decomposition method，简称DDM)，将大区域分成几个小区域，在每个小区域上，用TDQ方法，这种方法我们称之为三角微分求积区域分裂法(triangular differential quadrature domain decomposition method，简称TDQDDM)。

The document [1] to [5] reasearch the method of constant variation for solving nonlinear differential equation.

非线性微分方程没有一般的求解方法，而常数变易法是求解一阶线性微分方程的主要方法。

With c programming language, will step Kiel method of first-order differential equations, given an order ordinary differential equation init...

用c语言编程，定步长基尔法求解一阶常微分方程，给定一阶常微分方程的初值问题。

And by the backward stochastic differential equation we get the corresponding partial differential equation of the European option price when those parameters are constants.

并且，借助倒向随机微分方程找到在以上参数均为常数时，期权价格所满足的偏微分方程。

Two-point boundary value problem subject to nonlinear second order differential equation is applied in engineer and technology science.

非线性常微分方程边值问题是微分方程研究领域中一个较为实际，其发展也较为活跃的一个分支。

It was presented that a dynamic retrieving differential equation mode of two-variable hydrologic time series considering one main cycle.

3提出一种考虑一个主周期的水文二元时间序列动力反演微分方程模式，并应用双向差分法和最小二乘法推导微分方程参数，给出求解公式。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。