多项式逼近

自适应最佳多项式逼近的Remes算法

An adaptive Remes algorithm for best polynomial approximations

Ba空间中三角多项式逼近的Jackson定理

The Jackson theorem in b_a spaces approximated by trigonometric polynomials

有理Bézier曲线的多项式逼近新方法

New way of approximating rational B é zier curve with polynomial curve

线性连续回归模型基于Chebyshev多项式逼近的Markov参数估计

Markov parameter estimation for linear continuous regressive models via Chebyshev polynomials approximation

一类有理Bézier曲线及其求积求导的多项式逼近

Approximating a kind of rational B é zier curves and their integral computation and derivatives using polynomial curves

随机连续系统基于Laguerre多项式逼近的Markov参数估计

Markov Parameter Estimation for Stochastic Continuous Systems via Laguerre Polynomials

应用K-泛函和乘子方法建立了球面Jackson多项式逼近的正定理、逆定理和饱和定理。

Using methods of K-functional and multiplier the direct , inverse and saturation theorems are established .

多项式逼近在介质柱宽角RCS快速计算中的应用

Application of Polynomial Approximation in the Fast Calculation of Wide Angle RCS of Dielectric Cylinders

基于Chebyshev多项式逼近的随机vanderpol系统的倍周期分岔分析

Period-doubling bifurcation analysis of stochastic van der Pol system via Chebyshev polynomial approximation

研究了有理曲面的hybrid多项式逼近和Hermite多项式逼近的关系。

This paper investigates the relationship between the hybrid polynomial approximation and the Hermite polynomial approximation for rational surfaces .

基于分裂法及Hermite多项式逼近的随机有限元

Stochastic Finite Element Method with Decomposition and Hermite Polynomials Approximation

二元Bernstein多项式逼近阶的估计

Estimation for the Approximation Order of the Binary Bernstein Polynomial

多项式逼近余项的Lipschitz常数的估计

An Estimate of the Lipschitz Constant of the Remainder in Polynomial Approximation

最佳多项式逼近与多元Bernstein算子的加权逼近阶

The best polynomial approximation and degree of weighted approximation of multivariate Bernstein operators

随机连续线性系统基于Legendre多项式逼近的参数估计

Parameter estimation of stochastic continuous linear systems via Legendre polynomials approximation

hybrid逼近算法是一种用多项式逼近有理多项式的有效方法，但是这种算法逼近有时会发散。

The algorithm of hybrid approximation is a useful method for polynomial approximation of rational polynomial . However , the convergence is not assured in applying hybrid polynomial approximation sometimes .

建立方位捷联平台速率陀螺的误差模型，提出了在H2范数意义下采用正交多项式逼近算法，估计方位捷联平台速率陀螺的动态误差模型。

Error model of rate gyro used in azimuth strapdown platform is built up . Its dynamic error model is estimated by using orthogonal polynomial approximation method in H_2 norm .

边值Riemann可积函数的拟插值多项式逼近阶

Order of Approximation by Quasi-Interpolating Polynomials to Riemann Integrable Functions On the Boundary of a Domain

基于Laguerre多项式逼近法的随机双势阱Duffing系统的分岔和混沌研究

Analysis of bifurcation and chaos in double-well Duffing system via Laguerre polynomial approximation

Lagrange算子与Bernstein算子是用于处理多项式逼近问题的两个重要算子，这两种算子各有优缺点。

Lagrange operator and Bernstein operator are two important operators which are used to deal with polynomial approximation problems .

文献[2]提出了一种基于二次Bernstein多项式逼近和Hilbert曲线的数字图像压缩方法。

Recently Biswas [ 2 ] has proposed a method of compressing images using quadratic Bernstein polynomial and Hilbert curve .

Bernstein多项式逼近的一个定理

Theorem for Bernstein Polynomials

另外，用该方法也可得到椭圆弧曲线段和椭球面曲面片的参数Bézier多项式逼近式。

Furthermore , by using this paper 's method , The parameter B é zier form polynomial approximants of elliptic arcs and ellipsoid patches can be presented .

Orlicz空间上的凸多项式逼近

Convex Polynomial Approximation in Orlicz Space

故NFI－AMS算法适用于低次分段多项式逼近。

So this algorithm can only be used in lower degree polynomial approximation .

Bergman空间的多项式逼近

Polynomial Approximation in the Bergman Space

对作为兴波阻力计算核函数的Green函数的单、双积分项分别采用特殊函数展开、切比雪夫多项式逼近的方法进行计算，提高了计算速度。

In the single and double integral terms of Green function , the kernel function of wave-making resistance expression , Special function expansion method and Chebyshev polynomial approach method have been adopted respectively , which greatly increase the calculation speed .

应用多项式逼近光敏电阻随发光强度变化曲线，将其转换为光敏电阻随时间变化曲线，结合受控电压源，产生SPICE程序描述的光敏电阻子电路模型。

Intensity , transforming this curve into time-dependent curve , utilizing voltage-controlled voltage source , a SPICE program that describes photoresistor sub-circuit model is yielded .

文中的主要数值结果表明Chebyshev多项式逼近法是研究非线性随机参数系统动力学问题的一种有效方法。

Numerical results also show that the Chebyshev polynomial approximation is an effective approach in solving dynamical problems of nonlinear systems with random parameters .

应用Chebyshev多项式逼近法研究了谐和激励作用下具有随机参数的随机vanderpol系统的倍周期分岔现象。

Chebyshev polynomial approximation is applied to the period-doubling bifurcation problem of a stochastic van der Pol system with bounded random parameters and subjected to harmonic excitations .