查询词典 interpolating spline function

And then we demarcated the saltation time and starting time of this travelling wave respectively by the first kind of cubic B-spline wavelet and the second kind of cubic B-spline wavelet.

由于行波各频率分量在线路中的传播速度是不同的，而我们所检测到的行波浪涌并非行波的最高频率分量，所以必须选取与所检测到的行波浪涌相吻合的波速。

It is the outside circle of the external spline or the root circle of the internal spline.

它是外花键的外圆，和内花键的齿根圆。

It is the root circle of the external spline or the inside circle of the internal spline.

它是外花键的齿根圆，和内花键的内圆。

Spline method of editing and added into the model, separation, welding, Boolean, split, wheel Guo, fillet, cut, cut, and the spline ...

样条线的编辑及成模方法附加，分离，焊接，布尔，拆分，轮郭，圆角，切角，打断，以及样条。。。

According to project operator concept, the many-knot spline and Hermite many-knot spline surfaces, which have the schemes of Boolean sum and Tensor product, are set up in this paper.

本文根据投影算子的概念，构造了多结点样条、多结点Hermite样条的布尔和曲面和张量积曲面。

Based on the theory of B spline,this paper discusses the sufficient and necessary conditions of G 1 continuity between two patches of bi cubic tensor product non uniform B spline surfaces in a special type,and gives a kind of sufficient condition of G 1 continuity so as to satisfy the need of application.

依据有关B样条理论，研究了一种特定类型的双三次张量积非均匀B样条曲面间G1光滑拼接的充要条件，且给出了此种类型的两张双三次张量积非均匀B样条曲面间G1光滑拼接的一个充分条件，以满足实际应用的需

This paper discusses singularities, inflection points and convexity of FB-spline curves in terms of their control polygons, and gives the necessary and sufficient conditions for testing when FB-spline curves have one or two inflection points, or a cusp, or a loop, or none of the above points by the envelope theory and the topological mapping method.

文章利用包络理论和拓扑映射的方法，讨论了FB-样条曲线的奇拐点和曲线性质，并给出了依据控制多边形判断FB-样条曲线出现1个或2个拐点、1个尖点、1个二重点以及处处为凸的充分必要条件；最后给出了FB-样条曲线的奇点、拐点以及二重点在λ-μ平面上的分布图。

In order to make up the deficiency of ordinary trigonometric polynomial curves in aspect of shape adjustment, then in view of polynomial spline cannot represent some transcendental curves, a new kind of parametric trigonometric polynomial spline with a shape parameter is constructed by linear singular blending technique.

为了弥补普通三角多项式样条曲线在形状调整方面的不足，同时又考虑到多项式样条曲线不能精确表示一些超越曲线，我们利用奇异混合的思想构造了一种新的带有形状控制参数的三角多项式样条曲线。

The B spline and the NURBS spline functions commonly used in the electromagnetic scattering field are approximate splines, but they have to solve the control points and the numerical solution is unstable sometimes.

目前电磁散射几何建模常用的B样条和NUBRS曲面都是逼近样条，存在需要反求控制顶点，数值解有时不稳定的缺点。

Non uniform B spline, big deflective spline, fair methods of separated points, and transcendental functions etc.

其中单根曲线工具库，集非均匀BSpline、大挠度Spline、离散点光顺理论及超越函数等数学方法综合利用于一体，但曲线最终均被拟合在统一的几何不变的ArcSpline系统模型中。

Aquatic or marsh-growing fern allies; known to have existed since the Cenozoic; sometimes included in Lycopodiales.

生活于水中或湿地的蕨类；从新生代生存至今；有时归于石松目之中。

The engine was uprated from a 90hp Franklin to a 125hp Lycoming.

改良过的引擎是从90hp到125hp莱康明富兰克林。