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？

youdao

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。

youdao

Most visuals for applications start out as vector mock-ups in Adobe Illustrator. So, here are some cool iPhone UI vector elements.

大部分应用程序的界面在Adobe Illustrator为矢量模型，这里是些很酷的iphone UI 矢量元素。

youdao

it's clear that you want to add a vector that looks like that, because then you go from the start of this to the finish of that, you end up at the same point and you get this invisible 0 vector.

显然应该给它加上这样一个矢量,因为从这个矢量的起点指向那个矢量的终点,最终指向的是同一个点,你就得到这个不可见的零矢量

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