單位切向量

Simplified: 单位切向量

dānwèiqiēxiàngliàng ㄉㄢ ㄨㄟˋ ㄑㄧㄝ ㄒㄧㄤˋ ㄌㄧㄤˋ

    • unit tangent vector

      math.

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Sources