Using natural spline functions with multiple knots, we discuss the extended Sard approximation of Linear functional.
本文利用具有重结点的自然样条函数,讨论了线性泛函Ff=sum from i=0 to n-1[integral from a to b a_i(x)D~i f(x)dx+sum from j=0 to L~1 b_(ij)D~i f(x_(ij))]的广义Sard逼近问题。
A new method of rational approximation of the offset curves of planar Bézier Curves;
平面Bézier曲线的等距曲线有理逼近新方法
Structural dynamic reanalysis based on substructure and rational approximation;
结构动力重分析的子结构有理逼近
In this paper,the rational approximation of the offset curve of Bézier curves is obtained when a polynomial of symmetric power basis is used to approximate the norm of parametric speed of Bézier curves.
等距曲线逼近技术的关键在于参数速度的逼近,文章用S幂基(Symmetric power basis)多项式逼近平面Bézier多项式曲线的参数速度模长,得到Bézier多项式曲线的等距曲线的有理逼近曲线,所得有理多项式逼近曲线与等距曲线在端点处能够达到高阶插值。
The necessary and sufficient conditions for A-acceptability of two parameterized rational approximations to the function exp(z);
exp(z)的含双参数有理逼近A-可接受的充要条件
Therefore,we present a new kind of generalized extended interpolation method to construct the generalized extended approaching model for a non-circular curved surface of typical mechanical elements by using the scattered measured points of mechanical elements and then implement its high precision mechanical elements prof.
对于高精度机械零件的非圆曲面轮廓,一般采用线性插值法和拟合法进行设计,但都普遍存在设计精度不高等缺陷;为此我们采用一种新的广义延拓逼近法,利用典型零件的离散测量点进行数据逼近处理,构造出机械零件非圆曲面的广义延拓逼近模型,从而实现高精度机械零件的曲面轮廓设计。
When designing a high precision cam profile,we utilize a new kind of generalized extended interpolation method to construct the generalized extended approaching model for a cam non-circular curved surface by using the scattered measured points of a non-circular curved surface of cam profile to implement the optimal design of the cam profile.
我们在高精度的凸轮轮廓几何设计中,采用一种新的广义延拓逼近法,利用凸轮轮廓非圆曲面的离散测量点,构造出凸轮非圆曲面的广义延拓逼近模型,来优化设计凸轮轮廓。
Rational Approximation of Offset Curves of Rational Bézier Curves
有理Bézier曲线的等距曲线有理逼近
The Approximation of Complex by Eisenstein Rationals and the Inhomogeneous Diophantine Approximation over the Field of Formal Series;
复数的Eisenstein有理逼近及形式级数域上的非齐次丢番图逼近
The Rational Approximation of Planar Bézier Offset Curve;
平面Bézier曲线的等距曲线有理逼近
On the Potwise Estimate for Müntz Rational Approximation;
关于Müntz有理逼近的点态估计
On Pointwise Estimate for a Class of Müntz Rational Approximation
关于一类Müntz有理逼近的点态估计
Vector-Valued Rational Approximate Method for Structural Dynamic Reanalysis;
结构动力重分析的向量值有理逼近方法
Demand Forecast of Inventory Systems Based on Rational Approximation Algorithm;
基于有理逼近算法的库存系统的需求预测
rational function approximation
有理函数逼近[近似](式)
Research on Approximate Degree Reduction for Interval Rational Bezier Curves and Surfaces;
区间有理Bezier曲线、曲面的降阶逼近研究
Spectral Approximation to Problem Cauchy of Linear Evolution Equation;
线性波动方程Cauchy问题的有理谱逼近
On the Convergence of Approximation for the Rational Function to |x|;
关于对│x│有理插值逼近的收敛性
New way of approximating rational Bézier curve with polynomial curve
有理Bézier曲线的多项式逼近新方法
The Segment Rational Quadratic Bézier Interpolation and Approximation to Functions
函数分段有理二次Bézier插值与逼近
Bounded property and approximation of bivariate rational interpolating surface
一类二元有理插值曲面的有界性和逼近性质
On Superconvergence Properties and Postprocess of Finite Element Approximation of Non-smooth Solutions in One Dimensional;
一维非光滑解有限元逼近的超收敛性及后处理
The Solving and Application of Rational Approximants for Geometric Correction
有理函数逼近及其在几何纠正中的应用
weierstrass approximation theorem
维尔斯特拉斯逼近定理
minkowski approximation theorem
闵可夫斯基逼近定理