And, the way we can get it, so, it's called usually V, so, V here stands for velocity more than for vector. And, you just get it by taking the derivative of a position vector with respect to time.
根据它的原理，我们通常用v表示,这里的V更代表速率而不是矢量，你能通过,对一个关于时间的位置向量求导得到它。
So, speed, which is the scalar quantity is going to be just the magnitude of the vector, V.
因此，速度的大小即是,矢量V的模长。
v So -- So if the gradient vector is perpendicular to v OK, that's a good start.
所以梯度向量垂直于,很好，这是一个很好的开始。
v0 And there is an angle between ; the position vector and v zero; 0 I call that phi zero.
在方位向量和,之间，有一个夹角;,我们叫它φ
r So, let's remember that the amount by which we moved, t delta r, is approximately equal to v times delta t, OK, and just using the definition of a velocity vector.
所以记住移动的量△,约等于v*△,这是用速度矢量的定义。
So here's a program called arg V, this is fancy speak for argument Vector, a list of arguments for the left or right.
这里有一个叫做ArgV的程序，这个设想讲述了，参数矢量，从左到右的一列参数。
The main four-chamber engines designed by V. P. Glushko and new control engines from s. P. Korolev for controlling the thrust vector were installed in these units.
这些子级上安装了瓦·彼·格鲁什科设计的四推力室主发动机和谢·帕·科罗廖夫设计的用来控制推力矢量的新型姿态控制发动机。
According to the border region of rough set theory and the merits of V-support vector machine, the algorithm of support vector clustering is improved.
根据粗糙集理论的边界区域和V -支持向量机的优点对支持向量聚类算法进行改进。
The unstability property of linear, time-dependent discrete, large-scale systems is investigated by the use of vector v-function combined with comparison principle.
采用向量V函数结合比较原理，研究线性时变离散大系统的不稳定性。
The unstability property of linear, time-dependent discrete, large-scale systems is investigated by the use of vector v-function combined with comparison principle.
采用向量V函数结合比较原理，研究线性时变离散大系统的不稳定性。
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