为什么要说F是一个梯度场?
Now it should be a gradient field.
那么它应该就是一个梯度场。
也就是梯度场。
So, indeed, this is not a gradient field.
因此这不是一个梯度场。
它不是梯度。
The second color in a gradient.
渐变中的第二种颜色。
Yes? How do I know the direction of a gradient?
我怎样知道梯度的方向?
It is a gradient field. We need three conditions.
这是一个有势场,我们需要三个条件。
The problem is not every vector field is a gradient.
问题是,不是所有向量场都是梯度。
So how do we get a gradient background on a shell?
那么如何在shell上得到渐变的背景色呢?
The question is for which value of a is this a gradient?
问题是a取多少时,这是一个梯度场?
We have said if we have a gradient field then we have this.
如果有一个梯度场,那就能得到这个。
If you have a gradient field then it should have this property.
如果给定一个梯度场,那么它就应该满足这个性质。
Yes? How do you determine whether something is a gradient or not?
怎样确定一个场是不是梯度?
So, in particular, only if you have a conservative field, a gradient field.
特别地,仅当是保守场,即有势场时才可以使用。
You can use a gradient brush to fill a shape with a gradually changing color.
您可以使用渐层笔刷,以逐渐变更的色彩来填满形状。
The main difference is the addition of a gradient to give it a fresher aesthetic.
主要变化是增加了色彩渐变,使得视觉上更加美观。
The main difference is the addition of a gradient to give it a fresher aesthetic.
主要变化是增加了色彩渐变,使得视觉上更加美观。
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