transformation of variable

  • 释义

    变数代换;变数的变换

数据更新时间:2026-08-21 16:52:27
1、

By using Fourier transformation for space variable, Laplace transformation for time variable and convolution theorem for their inverse transformations, a general solution for dynamical problem of infinite beam on an elastic foundation is obtained.

然后对空间变量和时间变量分别进行Fourier变换和Laplace变换,利用逆变换褶积积分,得到了弹性地基无限长梁一般动力问题的解析解。

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2、

Constant coefficient computing formulas are better than traditional variable coefficient computing formulas. Constant coefficent formula for conformal projection transformation is the best model for computer calculation. They could be widely applied in flelds of computer cartography, map databases and GIS, ect.

常系数计算公式优于传统的变系数计算公式,是基于计算机的等角投影变换的最佳模型,它在计算机制图、地图数据库、GIS等领域中有着广泛的应用。

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3、

Theorem Two testifies the invariant property with independent variable fractional transformation; this property of multivariate matrix Pad é approximant is like that of one variable matrix Pad é approximant.

定理二证明多元矩阵Padé逼近与一元矩阵Padé逼近一样,具有自变量分式变换下的单应不变性;

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4、

After the transformation of the flow path of a certain unit, there exits excessive negative differential expansion under normal operation condition, which seriously impacts the varying duty and the variable parameter characteristics of the unit.

某型号机组经过通流部分改造后存在着正常运行状态下负胀差偏大的问题,严重影响机组的变负荷特性及变工况特性。

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5、

We apply the theory of functions of a complex variable under Dirac-Pauli representation and the Legendre transformation, transform these equations of two problems from physical space into velocity space, and obtain two general Chaplygin equations in this paper.

我们应用Dirac-Pauli表象的复变函数理论并采用Legendre变换,将此两类问题的方程组变换到速度空间,从而得到了两种推广的Chaplygin方程。

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6、

By utilizing an exponential variable transformation and linear underestimates of the objective and constraint functions, linear programming relaxation ( LPR) about SGP is established, and the proposed determinate global optimization algorithm is proven that can converge to the globally optimal solution of SGP.

利用指数变换及对目标函数和约束函数的线性下界估计,提出一个求符号几何规划(SGP)问题全局解的确定型全局优化算法,并证明了算法的收敛性。

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