Tangent Space

https://elementary-physics.tistory.com/49

[다양체,텐서] 1.3 Tangent Space, Tangent Bundle

미적분학에서 3차원에서 surface의 한 점에 접하는 평면을 tangent plane이라고 부름
이 tangent plane을 일반화한 것을 의미
(Point x에서의 tangent vector들의 집합을 TxM이라고 쓰고, x에서의 tangent space라고 부름.)