approximations

Elementary Approximations of Classical Emden Equations on Unit Ball

单位球上经典Emden方程的初等逼近

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Approximations of local covariance function s of gravity anomaly

局部重力异常协方差函数逼近

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This paper first presents a MBW geometric framework for nonlinear exponential family regression models with linear restriction. A set of stochastic expansions are given for the restricted maximum likelihood estimator by using the MBW geometric framework. So it is easy to derive the approximations of its moments.

首先，本文给出了带线性约束的指数族非线性回归模型的MBW几何结构，并在此基础上，给出了带线性约束的指数族非线性回归模型的最大似然估计量的随机展开。

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The kinds of approximations needed to, for example , simulate a firestorm, were in the past intractable.

要利用这种近似解来模拟大爆炸在以前是不可能实现的.

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There are two approaches generally used to arrive at these approximations.

通常有两种方法用于获得近似解析式.

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Based on the mean field and Bogoliubov approximations, we linearize the Hamiltonian of a nonequilibrium Bose condensed system, which is created by an external coherent pump field, and coupled to a reservoir.

基于平均场和Bogoliubov近似，将由外界相干抽运场产生并与库耦合的非平衡玻色凝结体系的哈氏量线性化。

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The term by term expansions of the standard and a modified finite element approximations for two-point boundary value problems

两点边值问题标准与非标准有限元解的逐项渐近展式

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Analytical expressions are obtained on short time and long time approximations.

在短时和长时近似下，得到了解析表达式。

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First, we construct the formal asymptotic approximations of the initial-layer solution to the flood wave equations by the weaker stability conditions. Initial D

然后文章充分利用弱稳定性条件和方程的特殊结构，结合经典的匹配原理和初始层修正的方法对流波方程作了形式逼近展开。头文字D漂移族

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On the Solution of the Control Parametric Transport Equation with Periodic Boundary Condition and the Convergence of the Discrete Ordinate Approximations

具周期边界条件控制参数迁移方程的解及其离散纵标逼近的收敛性

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They are therefore approximations and cannot be used for highly critical flow or pressure drop calculations.

因此这些数据只是大致的数据,不能用作高流量临界值或压降估计值.

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They are not second-order approximations, but are exact for any amount of deformation.

它们不是二次近似, 而是对任何变形量都成立的精确表达式.

词典精选例句

The half discrete difference scheme of forth-order is used to transform the delay partial differential equation into the delay ordinary differential equations. The higher accurate approximations are obtained when the precise time-integration method is applied to the delay differential equations. 5.

利用四阶精度半离散差分格式把延迟偏微分方程转化为延迟常微分方程组，应用精细时程积分法于延迟常微分方程组，得到了高精度的近似解。

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Convergence of the Legendre nonlinear approximations to the Dirac function

δ函数Legendre非线性逼近的收敛性

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Numerical approximations include functional approximations and statistical approximations.

数值逼近包括函数模型逼近和统计模型逼近.

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First, the paper presents mathematically the existence of a solution in the weak formulation of SBV space. Then some approximations and numerical methods for computing the weak solution are discussed.

首先在数学上指出了MS泛函弱解在SBV函数空间中的存在性，然后讨论了计算弱解的数值逼近方法。

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To overcome difficulty of high computational cost in difference sensitivity analysis, efficient derivatives are obtained using approximate-difference strategy based on combined approximations.

基于谐响应组合近似重分析方法，提出了近似-差分敏度求解策略。

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Combining with the relative movement parameters, a deformation analysis method of successive approximations is presented.

结合相对运动参数, 提出了一种逐渐趋近的变形分析方法.

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Rather, I brainstormed new strategies, thought up more incompatible behaviors and used approximations.

而是想出新策略 、 想出更多互斥行为、采用更多的渐进法.

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Such estimates should be considered only as crude approximations.

上述估算结果只能是粗略的近似值.

词典精选例句

Such linear calculations, of course, can only be very rough approximations.

这一系列的计算可能仅仅是粗略的估计.

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The correction method by semi-discrete approximations for the first kind of semi linear elliptic boundary problem

半线性椭圆型方程第一边值问题半离散校正法

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In such incomplete information system, the universe of discourse is classified by the maximal tolerance classes, and fuzzy approximations are defined based on them.

在不完备模糊目标信息系统中，首先利用最大相容类对论域分类，基于最大相容类定义模糊近似。

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Many exercise machines give approximations and you can find lists of estimates online.

很多运动机器只能给你近似值,你可以在线找到评价的信息.

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This problem can be alleviated by the proposed SDP with successive approximations in this paper.

逐次逼近随机动态规划可有效克服这一问题.

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Values are not approximations to prices nor a necessary step in their calculation.

价值并不是价格的近似值,也不是价格计算必须的步骤.

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These formulas make the approximations for the derivatives at these points in a nonsymmetrical manner.

这些公式使得这些点子上的导数近似式是非对称形式.

词典精选例句

The model is based on solution of the time-dependent gas dynamic equations under appropriate simplifying approximations.

本模式建立在含时气体动力学方程解的基础上,这些方程解是在适当简化的近似条件下得到的.

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S: High gradient is an important aspect of key characteristics in engineering. The paper focuses on the descriptions and the treatments of this characteristic, including approximations of polynomial, composite function and Bezier based function.

高梯度是工程中关键的特征之一，本文讨论和研究描述高梯度问题的函数逼近，包括：多项式函数逼近、复合函数逼近、Bezier函数逼近。

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The expansion in U-series has advantageous properties for approximations in both quadratic norm and uniform, and it can be realized to express a group of parametric curves which are piecewise k-degree polynomials in a number of finite terms of U-series.

该系统下的U级数展开式具有良好的平方逼近及一致逼近性质，而且能用有限项U级数实现对分段k次多项式参数曲线图组的精确表达；

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