But we know another vector that is also perpendicular to the level set of g. That is the gradient of g.

但我们知道有另外一个向量也是和g的等值面垂直的，这个向量就是g的梯度。

youdao

But we know another vector that is also perpendicular to the level set of g. That is the gradient of g.

但我们知道有另外一个向量也是和g的等值面垂直的，这个向量就是g的梯度。

youdao