I mean we'd seen in last time, but the gradient is perpendicular to the level and points towards higher values of a function.
我的意思是,上一次我们讨论过了,这个梯度是垂直于等高线,并且是指向方程增长的方向的。
OK, so the new definition for today is the definition of the gradient vector. And, our goal will be to understand a bit better what does this vector mean?
所以今天我们的新定义,就是梯度向量,目的就是更好的理解这一定义,这个向量的含义是什么?
Altitude measurements mean the road's gradient can be determined.
海拔测量还可以判定出道路的坡度。
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