differential approximation
英 [ˌdɪfəˈrenʃl əˌprɒksɪˈmeɪʃn]
美 [ˌdɪfəˈrenʃl əˌprɑːksɪˈmeɪʃn]
微分逼近
双语例句
- It should be pointed out that the partial differential equations are difficult to solve, and an analytical solution to these equations might not be possible. In general, the solution can be given in a numerical form by the approximation method.
需要指出的是，偏微方程的解析解一般很难得出，通常情况下需采用数值逼近的方法来求解。 - All differential cross sections ( DCS), partial wave cross sections ( PCS) and total scattering cross sections ( TCS) have been achieved by using close-coupling approximation method to calculate the three systems, and results above have also been discussed and analyzed.
用密耦近似方法对He-HF、He-HCl和He-HBr三个碰撞体系进行计算，得出了各种微分散射截面、分波截面和总散射截面，并将计算结果进行讨论和分析。 - The proposed method combines derivative estimation with classical differential geometry theory, and discretizes the geometric properties of the parametrized differential curve based on the definitions of the discrete derivatives. Then, the geometric properties are estimated from discrete curves by using the discrete approximation.
该方法将导数估算与经典微分几何理论相结合，通过离散导数的定义将普通参数化曲线的几何特性离散化，并以此估算出离散曲线的几何特性。 - For one-dimensional convection-diffusion equation, at first, the differential equations is semi-discrete approximation.
本文研究了求解对流扩散方程的指数型差分格式。 - The absolute differential cross sections of e-Ar scattering in the laser are calculated employing the second Born approximation with optical potential model in special scattering geometry that the incident electron beam is parallel to the polarization direction of laser field.
应用第二玻恩近似理论，在电子入射方向平行于激光场的极化方向这种特殊的散射模式下，利用光学型对激光场中电子氩原子散射进行了研究。 - Differential Equation Approximation of Fatigue Crack Growth Curve
疲劳裂纹扩展曲线的微分方程拟合法 - A method using the idea of differential approximation to represent the lane is studied, which has improved the precision of the Lane Departure Warning system, and need not to assign the road model in advance.
并使用了微分的思想对车道线进行逼近，无需事先指定道路线的模型，提高了车道偏离预警系统的精度。 - In this thesis, as applications, we develop a differential geometric theory of the set of positive definite matrices by means of a specific class of con-nections introduced into it. Using the theory we derive interesting geometrical interpretations for matrix approximation.
作为应用，这篇论文还通过引进特殊的联络介绍了正定矩阵集的微分几何理论，运用这套理论我们获得了矩阵逼近理论的一些有趣的几何解释。 - A linear multi step fuzzy logical system for identifying unknown dynamic systems described by ordinary differential equations is presented. The fuzzy system is constructed according to the linear multi step approximation method for solving ordinary differential equations.
根据求解常微分方程的线性多步逼近方法构造了线性多步法模糊逻辑系统以辨识由常微分方程所描述的未知动态系统。 - In this paper, the author proves the existence and stability of global solutions for abstract functional differential equations by using the method of successive approximation, which are the generalization of the results in ordinary differential equations.
本文在一次近似方程的解具有指数衰减性质的条件下，采用逐步逼近方法得到了原方程整体解的存在唯一性和稳定性结果。