矢量积

On the basis of the probe and research into space analytic geometry and seeing from the students ' thinking characteristics , this paper has got a proof about three vector double vector product theorem .

本文通过对空间解析几何的研究和探讨，从学生的思维特点出发，给出一个有利于学生认知结构形成的三矢量的双重矢性积定理的证明

An axial vector may itself enter into a vector product.

轴矢量自身可参与矢积。

In this equation,* is a scalar multiplication, x is a vector cross product, and .

在方程式中，"*"代表纯量乘法，"x"是矢量的叉积，而"。"

Is a vector dot product.

是矢量的点积。

Since scalars are independent of the coordinate system, the dot product of two vectors is called a scalar invariant

因为标量与坐标系无关，故两个矢量的点积称为标量不变量。

In DP-CELP, the excitation was generated by means of convoluting the algebraic code vector with a fixed dispersion pulse. The constructed speech quality was efficiently improved with this excitation, but the search complexity for algebraic codebook was not increased.

该算法为低速率编码算法，激励矢量由特殊结构的代数码书与固定形式的散布脉冲的卷积获得，这种激励源既有效地改善了重建语音质量，又未增加代数码书搜索的复杂度。

At last, the Double Message Signal is proposed and the non-interfere condition is presented that the steering vectors are orthogonal in the weighted inner product space, with the inverse matrix of background covariance as the weighting matrix. The optimal polarization states are designed, according to the EM background.

最后，提出了一种双信息信号传输的方案并导出了无互扰传输的充要条件：两期望信号的信号矢量在以干扰噪声协方差矩阵的逆矩阵为加权矩阵的加权内积空间中正交，在给定的电磁环境下设计了双信息信号的极化状态。

In this paper,the singularity in the integrand of electrical field integral equation for 3-dimensional vector fields scattering is first analyzed.

本文研究了电场积分方程中被积函数奇异性的处理方法，特别是三维矢量散射分析中出现的高阶奇异性，给出了两种解决积分方程奇异性的数值方法。

In order to talk about the limitation of a vector series, one has to introduce the norm of a vector.

量子体系的态矢量空间是复的内积空间，即定义了内积的复线性空间。

The scalar triple product, the determinant of the matrix formed by columns A, B, C.

前两个矢量点积后于第三个矢量叉乘，或是由列A，B，C所构成矩阵的行列式值。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。