unit tangent vector
常见例句
- It has a hat because it's a unit vector, and T because it's tangent.
这上面有一个帽子表示它是单位矢量，T表示它是切线。 - And so that means that any vector u, any unit vector tangent to the level set of g is going to be perpendicular to the gradient of f.
也就是说，任何向量u，任何与g的水平集相切的单位向量,应该要与f的梯度垂直。 返回 unit tangent vector