This paper studies the problem of the solution to the unlimited optimization of quadratic differentiable function f(X)by means of variable transformation, presents a characteristic value method, and solves the direction of search when Hesse matrix is non-definite,The calculations show that the algorithm is satisfactory in both the number of interatives and the stability of the numerical value.
本文讨论了利用变量变换求解二次可微函数ｆ（ｘ）的无约束最优化问题，给出了一个特征值方法，解决了Ｈｅｓｓｅ阵非正定时的搜索方向问题。
This paper gives the general solutions of the six order inhomogeneous linear differential equation with variable coefficients,by the method of the variable transformation.
将六阶变系数线性常微分方程利用变量变换化为常系数线性常微分方程,进而得出它的通解
It involves the following steps:Attenuation factor X is introduced to smooth real resistivity curveA transform operator is designed to transform the smoothed curveWindow average way is used to estimate incident wavelet field, causing stable operation and fast inversion to improve resolution.
首先，引入衰减因子λ，对实测电阻车曲线进行平滑处理；然后设计一个变换算子，将平滑后的数据进行变换；并利用窗口平均法求取入射子谈场，使得运算过程稳定、反演速度加快，达到了提高分辨率的目的。
Based on the decision characteristics of multi-attribute system and the principle of“reward good and penalize bad”, a transform operator is proposed in the pretreatment phase of data.
针对多指标系统的决策特点,提出一种易于计算且实用的奖优罚劣变换算子,通过此变换算子将效果样本矩阵变换为决策矩阵,并求出最优效果向量,按照灰靶决策理论,建立了一种新的基于多指标加权灰靶决策模型,该模型充分考虑了各指标在系统中的成长特性,为多目标决策问题提供了一种科学实用的决策方法。
Application of Variable Transformation Method for First-Order Ordinary Differential Equation
变量变换在解一阶常微分方程中的应用
measuring transducer(with electrical output)
（电量输出）测量变换器
Harmonic Parameter Measurement Based on Wavelet Transforms and Fourier Transforms;
基于小波变换和傅立叶变换的电参量测量
Invariant Image Recognition Based on Radon Transform
基于Radon变换的矩不变量及其应用
Method of Elememtary Transformation Which Changes the Correlated Basic Variables into Uncorrelated Ones;
一种化不相关基本变量的初等变换法
Voltage Flicker Measurement Based on Chirp-Z Transform
一种基于Chirp-Z变换的闪变测量方法
active transducer
有源变换器;有源换能器;有源能量转换器;主动变换器
Replacement of the variables in an algebraic expression by their values in terms of another set of variables.
变换以另一套变量置换为一个代数表达式中变量的值
The energy is exchanged with the network using a power converter.
采用电力变换器,将此能量与电网交换。
Nielsen transformations and its inverse transformations of Schottky groups
Schottky群的Nielsen变换与逆变换
Studies on Extracting Characteristic Values of Transformer Protection by Wavelet Transform;
应用小波变换提取变压器保护特征量的研究
Linear Transformation under Normal Random Variables Distribution;
线性变换下正态分布随机变量列的分布
Solving Improper Integral with Variable by Laplace Transform;
利用拉普拉斯变换求解含参变量的广义积分
Study on the Characteristics of Grain Food Production Variation in Yantai City Based on the Wavelet Transformation;
基于小波变换的烟台市粮食产量变化特征研究
The slip vector converting control system powered by the current inverse transformer;
电流逆变器供电的转差型矢量变换控制系统
On the Precession of Planets with Action-angle Variables and General M(?)ller Transformation
作用角变量方法研究行星进动和广义M(?)ller变换
A Class of Stong Deviation Theorems For Continuous Random Variables By Transformation of Laplace
基于Laplace变换的连续型随机变量的强偏差定理
Image denoising using non-Gaussian bivariate model based on non-aliasing Curvelet transform
抗混叠Curvelet变换非高斯双变量模型图像降噪