求值

In this paper,we mainly give some examples to demonstrate its applications in proving inequality,solving triangle,solving the most value and solving the equation and so on.

本文就柯西不等式在证明不等式、解三角形相关问题、求最值、解方程等问题的应用方面举几个例子予以说明。

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)。

In many practice problems such as to know the resonnance frequency of a structure and to know the critical value for the stability of a dynamical system,often need to compute the eigenvalues of a symmetric matrix. The chief method to compute the eigenvalues of a symmetric matrix is first to transformate the matrix to a symmetric tridiagonal matrix similarly and orthogonally, then to use the QR method with shift to the symmetric tridiagonal matrix.

很多实际问题，如求结构振动的固有频率，动力系统稳定性的临界值等常常归结为计算对称矩阵的特征值，而首选的计算方法是先把该矩阵正交相似变换成一个对称三对角矩阵，再对这个对称三对角矩阵用带位移的QR方法。1968年J.H。

The polynomial function bases are used to form the approximately matching function. Moreover, the discrete values of grey image is transformed to polinomial function that are exact fit at the considered pixel locations. As a result, The mathematical operations performed such as derivation, integration, and gradient evaluation also give out the polynomial functions, therefore, the system of undetermined coefficient equations is derived to be a system of linear algebraic equations.

我们把立体匹配过程看作泛函的极小化过程，因此选用变分问题近似解法的Ritz法构造数值算法，以多项式函数为基构作匹配函数的近似解，进而又利用多项式过样值点的拟合将离散的灰度图象变换为多项式函数，因此计算中所需的求导，积分，及梯度运算的结果仍然是多项式函数，最终将待定系数方程组化为线性代数方程组。

To obtain a more reliable Q image, a waveform inversion method was developed for estimating Q from the walkaway VSP and surface seismic data.

为了获得更可靠的地震波衰减图像，研究采用了一种基于Walkaway井地联合地震资料的波形反演来求取Q值的方法。

Based on BP neural network model technology, a new approach was developed and applied to appraise the input parameters′significant degree through the weightiness and its distribution between the input and output layer.

摘要在BP神经网络建模技术的基础上，提出利用神经网络输入层与输出层之间的网络权值及其分布来求各输入参数重要程度的方法。

Based on BP neural network model technology,a new approach was developed and applied to appraise the input parameters′significant degree through the weightiness and its distribution between the input and output layer.

在BP神经网络建模技术的基础上，提出利用神经网络输入层与输出层之间的网络权值及其分布来求各输入参数重要程度的方法。

Finite element software ANSYS was employed to investigate the mechanical response of asphalt pavement structure under the axisymmetrical dynamic loading,and different loading period,loading amplitude and loading form were discussed in detail.

运用有限元程序ANSYS，采用轴对称模型，求出了沥青路面在动荷载作用下的力学响应，并针对不同的荷载作用周期、荷载幅值以及不同的荷载作用形式进行了详细的分析与讨论。

Based on the localization properties of wavefield decomposition and propagation in the beamlet domain, and according to relevant extrapolation formula, the beamlet domain is implemented, and finally imaging values are computed using image-forming condition.

利用小波束域波场分解和传播在空间和方向上的双重局域性，将小波束域波场依据相应的外推公式进行延拓，最终应用成像条件求取成像值。

In the first way,we know the conjugacy of the physical pendulum,so we can find the conjugacy point through making the diagram of by using Mathematica and get the value of g.

第1种方法利用复摆的共轭性，采用Mathematica软件作图，从而找寻到共轭点，进而求出g值。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。