That is our convention to get a unit normal vector that points to the right of the curve as we move along the curve.
这是约定的得到单位法向量的方法,这种做法使得,当沿着曲线行进时,法向量始终指向右手方向。
And now I want to add on, so I'm gonna hook the next vector on to the front of the arrow, we'll start next vector, and I will go this way, so let's see, can I do it right?
现在我要加上…我要将下一个向量钩住这个箭头的前端,我们将会开始下一个向量,我将这样做,让我们来看,我做的对么?
Finally, I settled on the vec function — it is quite fast, and was the right choice for handling DNA (essentially, the DNA is a bit vector, a built-in Perl data structure).
最后,我决定使用vec函数—它的速度相当快,对于处理dna而言,它无疑是正确的选择(本质上,DNA是个位向量,一个内建的Perl数据结构)。
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。
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