查询词典 polynomial approximation

Based on Wu's elimination method and "divide-and-conquer" strategy, the undetermined coefficient method for constructing polynomial conservation laws of nonlinear differential-difference equations was improved. Furthermore, a Maple package CLawDDEs was developed to automatically derive conserved densities and associated fluxes of polynomial differential-difference equations.

基于吴消元法和"分治"策略，改进了基于标度不变性构造非线性微分差分方程多项式形式守恒律的待定系数算法，并在计算机代数系统Maple上实现了改进后的算法，其中的软件包CLawDDEs可自动推导出微分差分方程的守恒密度及连带流。

Babai, a more accurate estimate vector can be obtained and the coefficients of the multiple polynomial of the interpolation polynomial can be computed.

利用L.Babai最近向量格归约算法得到更精确的估计向量，再计算出插值多项式的倍数多项式的系数，从而计算出原插值多项式的系数。

The problems of robust stability and robust stabilization for interval systems were discussed. A necessary and sufficient condition for the robust stability of a line segment polynomial was proposed. The tested results of robust stability of a polynomial polytope and robust stabilization of an interval system were obtained in terms of the condition.

讨论了区间系统的鲁棒稳定性和鲁棒镇定性的有限检验问题，给出了线段多项式鲁棒稳定性的充分必要条件，利用该条件对多项式多面体鲁棒稳定性和区间系统鲁棒镇定性进行了有限检验，并给出了相应的检验结果。

In this paper, authors research the so called PSSVM which uses the polynomial functions to smoothen the objective function and present two polynomial functions.

引 言研究从观测数据出发寻找规律，利用这些规律对未来数据或无法观测的数据进行预测的工作，迄今为止，还没有一种被大家共同接受的理论框架。

Since every computation that can be done in logarithmic space can also be done in polynomial time it follows that if there is a logarithmic-space many-one reduction then there is also a polynomial - time many-one reduction.

若我们提供一个副函式可以在多项式时间解出&Y&，'''又'''可写出呼叫此副函式的程式并在多项式时间解出问题&X&，代表我们可以将&X&多项式时间图灵变换成&Y&。

Based on the discrete-time difference equation of the plant,an explicit solution of Diophantine matrix polynomial equations in multivariable generalized predictive control is derived without appealing to Diophantine matrix polynomial equations recursions or iterations,which makes the applications of generalized predictive control much more convenient.

直接利用被控对象的离散差分方程推导出多变量广义预测控制中Diophantine矩阵多项式方程的显式解，从而避免了其递推求解或迭代求解，使广义预测控制的应用更加方便。

It is shown that the Chebyshev polynomial approximation is a valid method for the investigation of non-smooth systems.

研究表明，Chebyshev多项式逼近也是研究随机非光滑系统动力学行为的一种有效方法。

The polynomial approximation method is also employed to obtain simple formulas for frequency and amplitude correction.

本文利用多项式逼近方法获得了频率和幅值修正的计算公式。

Taylor theorem use polynomial approximation function to link the known function with its derivative in different orders.

作为一元函数微分学的顶峰，Taylor定理重要的作用之一是在一个给定点的附近，将函数近似地用多项式来代替。

Using the information consistency principle, the first step of the algorithm transforms the identification problem into a constrained convex programming ,the result of which is then used ,in the second step, to approximate systems in the uncertainty set to obtain the identified nominal model based on a polynomial approximation theorem.

第一步通过信息一致性原理把辨识问题转化为受限凸规划问题，第二步利用一个多项式逼近定理在第一步结果基础上，对不确定集中的系数进行逼近，得到辨识出的名义模型。

Tom: You are right, he worked hard all the time.

你是对的。他一直都是努力工作。

Take shortcomings,failures,and mockings of others as commonplace and a drive to complete oneself,hold your own opinion over the evalution and disscution divested from others,afterwards sink into the state of eliminate mistakes if any or encourge oneself being not being influenced by the sayinngs of others or having no ideas to do.

把缺点、失败及别人的耻笑等看成是一种常事，当成完善自己的动力，对别人的评价和议论自己心中有主见，做到&有则改之，无则加勉&，不为人言所左右或无所适从。