查询词典 polynomial approximation

This paper presents a layered polynomial texture to represent grass based on its complex geometric structure and diffuses material.

根据草的几何结构复杂性和材质的漫反射特性，提出层次多项式纹理(layered polynomial texture，简称LPT)来表示草，可以高效真实地实现这个目标。

It combines the geometrical flexibility of the Finite element method and the accuracy of the pseudospectral method. Here, the theory and the deducing process of the SEM based on the Legendre polynomial is given.

本文采用谱元法对横向同性介质中的地震波进行模拟，该方法基于弹性力学方程弱形式基础之上，具有有限元适应任意复杂介质模型的韧性和伪谱法的精度。

Because graph coloring problem belongs to NP complete problems, it can not get the optimal solution in polynomial time.

由于图的着色问题属于NP完全问题，不可能在多项式时间内得到最优解。

Dixon method was adopted to construct a 22×22 Dixon matrix and then the greatest common divisor of two columns was extracted. After expanding the determinant of the matrix, a 64 degree univariate polynomial equation was obtained and 6 extraneous roots were canceled in the process of solving the other 3 variables.

结合矢量法和复数法建立了4个几何约束方程式，使用Dixon结式构造22×22的Dixon矩阵，对两列提取公因式后展开矩阵的行列式得到一元64次多项式方程，回代过程中去掉6组增根后得到58组解。

It is proved that the problem of determining whether there is a Hamiltonian path from a specified vertex s to another t on a given digraph can be reducible at polynomial time to the problem of constructing a minimum spanning flow in a two-terminal extended network Ns,t, with the unit capacity for all arcs.

在此基础上，利用网络最小生成流的概念提出了一个修正模型，并证明了无环最小生成流问题可以在多项式时间内转换为哈密顿圈问题。文中最后指出，这一新的模型为解决在有向图内构造哈密顿轨的有效算法提供了一个新的思路和方法。

A fast algorithm based on Hermite interpolation polynomial for reconstructing signal from its wavelet transform maxima was proposed.

论文提出了一种基于Hermite插值多项式由二进小波变换模极大值重构信号的快速算法。

The result is independent of coherent length and order number of Hermite polynomial, and the strength of turbulence.

电磁高斯-谢尔模型光束通过湍流大气传输时光束偏振度的变化作为所得结果的特例给出。

Some identities on Hermite polynomial are obtained as well.

同时得到有关埃尔米特多项式的2个等式。

On the basis of deformation Hermite polynomial, secondary Schmidt orthogonal method and combination algorithm work together to generate UWB pulse.

在变形Hermite多项式的基础上，将二次Schmidt正交化算法与组合算法结合，使得生成的脉冲不仅正交，而且具有很高的频谱利用率。

Begehr constructed Hermite interpolatory polynomial in the meaning of non-tangential limit derivatives and got another method of solution.

Begehr教授[10]在非切向极限导数意义下构造Hermite插值多项式，给出了该问题的一种新解法。

The studies on the developing of new media are very important to the increasing of the area density of HDD and to the implementation of hybrid recoding technology.

光磁混合记录方法，是一种可以突破超顺磁极限的限制，并进一步提高硬盘记录密度和读写速率的一种新型超高密度信息存储方式。

In io, mTOR inhibition promotes T cell anergy under conditions that would normally induce priming.

体内研究中，在正常可激发免疫反应的条件下，抑制mTOR可促使T细胞无能。