查询词典 trigonometric

The trigonometric polynomial curves retain the main superiority of cubic Bézier curves.

给出了二次三角多项式B zier曲线，基函数由一组带形状参数的二次三角多项式组成。

Experiments show that C-B spline curve, uniform B-spline with shape parameter, hyperbolic polynomial uniform B-spline with shape parameter and trigonometric polynomial uniform B-spline with shape parameter can be used to produce some frequently used free form curves in the industrial field when the shape parameter is assigned with some specific values. This process is simpler than producing these free form curves by using controlling vertex.

实验证明，C-B样条曲线、带形状参数的均匀B样条曲线、带形状参数双曲多项式的均匀B样条曲线、带形状参数三角多项式的均匀B样条曲线都可利用形状参数的特定取值表示一些工业领域常用的自由曲线，这比起用控制顶点表示同样的自由曲线更为简单。

With the shape parameters, the trigonometric polynomial curves can approach more to the quadratic Bézier curves or to the given control polygon than the quadratic Bézier curves.

由三个控制顶点生成的曲线具有与二次Bézier曲线类似的性质，但具有比二次Bézier曲线更好的逼近性。

Here a simple technique for parametrization construction of 17/11 biorthogonal wavelet family is presented: first, the associated synthesis filter is formulated as one trigonometric polynomial represented by two free parameters; then the perfect reconstruction condition of the filter bank is reduced to one system of linear equations; finally the analysis filter is obtained by solving this system of linear equations. Thus, the exact free parameter expressions for the 17/11 biorthogonal wavelet filter banks are derived.

该文给出了一种参数化构造17/11双正交小波组的简便方法：首先把小波合成滤波器表示为用两个自由参数表达的三角多项式，然后把双正交小波的精确重构条件归结为一个线性方程组，最后求解此方程组得到对应的小波分解滤波器，从而得到了17/11双正交小波滤波器的参数表达式。

The diagram of shearing force is formulated by trigonometric series and used to determine the coefficients in above expansions.

剪力图是由三角级数表示的，并用于决定上述本征函数展开式的待定系数。

The diagram of torque is formulated by trigonometric series and used to determine the coefficients in above expansions.

扭矩图是由三角级数表示的，并用于决定上述本征函数展开式的待定系数。

The diagram of torque is formulated by trigonometric series and used to determ in e the coefficients in above expansions.

扭矩图是由三角级数表示的，并用于决定上述本征函数展开式的待定系数。

The above results are compared with the convergent solutions obtained by the method of trigonometric series.

计算结果表明，挠度幅值远远大于中面位移幅值，且与由双三角级数能量解法所得挠度幅值吻合很好。

Trigonometric and Legendre series are applied to construct the displacement models of each composite ply and glue layer in above loading state.

主要工作包括以下几个方面的内容：一、提出了复合材料层合梁和层合板应力分析的一般理论。

An artificial earthquake record with the Kanai-Tajimi model and trigonometric series superprosition method is generated.

基于Kanai-Tajimi模型和三角级数迭加法人工模拟了地震波，在人工模拟地震作用下分析了地铁车站抗震性能。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。