unit tangent vector

常見例句

雙語例句

• It has a hat because it's a unit vector, and T because it's tangent.
  這上麪有一個帽子表示它是單位矢量，T表示它是切線。
• 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.
  也就是說，任何曏量u，任何與g的水平集相切的單位曏量,應(yīng)該要與f的梯度垂直。
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